feat(cw): replace reversed Morse Expert engine with a pure-Kotlin fldigi port

Background:
The CW decoder previously shipped a decompiled copy of the proprietary
Morse Expert 1.15 (com/ve3nea/morse_expert + obfuscated classes,
libnativedecoderjni.so, suncompat black-magic) — a copyright liability.
This removes all of it and reimplements the decoder on the open-source
fldigi (GPL v3) CW engine as a faithful pure-Kotlin port with no JNI.

Changes:
- Delete all Morse Expert reverse-engineered code: MainActivity,
  obfuscated packages (B/B0/D/E2/...), suncompat/, pas/nativedecoder,
  armeabi-v7a libnativedecoderjni.so, and the original View-based layouts
  (activity_main, cw_panel_main, options_menu).
- Add a full fldigi CW pipeline in core/domain/cw:
  - CwFldigiDsp: NCO down-conversion, FFT filter, movavg constants
  - CwFftFilt: overlap-add FFT band-pass filter (fftfilt port)
  - MorseTable + SomTable: full Morse code table + SOM codebook
  - CwFldigiDecoder: decode_stream AGC + hysteresis, state machine,
    adaptive speed tracking (5-55 WPM), SOM winner/normalize matching
- Rewrite CwDecodeScreen as pure Compose (DeepCW-style waterfall,
  live decode line, history, status cards) and CwSettingsDialog
  (speed/bandwidth/SOM) with no View interop.
- Replace the Morse Expert panel in TransceiversPage with a Compose
  panel driving the same decoder; mic capture at 8000 Hz.
- Drop the forced armeabi-v7a abiFilters now that no native lib exists.

Verification:
- 8 unit tests pass (CQ/HELLO at 18-20 wpm, A-J at 30 wpm with
  adaptive tracking, dot/dash/Farnsworth edge cases) — all decode
  correctly from synthesized CW.
- :feature:cw and :feature:radar compile; app assembleDebug succeeds.
- APK contains no ve3nea/nativedecoder/morse_expert classes.

.github/workflows/release.yml

@@ -39,19 +39,22 @@ jobs:
         run: |
           echo "${{ secrets.KEY_STORE }}" | base64 -d > keystore.jks
           APK=$(find app/build/outputs/apk/release -name "*.apk" | head -1)
+          VERSION=${TAG_NAME#v}
+          SIGNED_APK="app/build/outputs/apk/release/Look4Sat-Pro-${VERSION}.apk"
           BUILD_TOOLS=$(ls -d ${ANDROID_HOME}/build-tools/*/ | sort -V | tail -1)
           ${BUILD_TOOLS}apksigner sign \
             --ks keystore.jks \
             --ks-pass pass:${{ secrets.KEY_STORE_PASSWORD }} \
             --ks-key-alias ${{ secrets.KEY_ALIAS }} \
             --key-pass pass:${{ secrets.KEY_PASSWORD }} \
-            --out app/build/outputs/apk/release/look4sat.apk \
+            --out "$SIGNED_APK" \
             "$APK"
           rm keystore.jks
+          echo "SIGNED_APK=$SIGNED_APK" >> "$GITHUB_ENV"
 
       - name: Create Release
         env:
           GH_TOKEN: ${{ github.token }}
         run: |
           gh release create $TAG_NAME --title=$TAG_NAME --generate-notes
-          gh release upload $TAG_NAME app/build/outputs/apk/release/look4sat.apk
+          gh release upload $TAG_NAME "$SIGNED_APK"

.gitignore

@@ -39,8 +39,7 @@ captures/
 .idea/
 
 # Keystore files
-# Uncomment the following line if you do not want to check your keystore files in.
+*.jks
-#*.jks
 /*.properties
 /keystore.properties
 /app/keystore.jks

app/build.gradle.kts

@@ -11,6 +11,16 @@ val keystoreProperties = Properties().apply {
 }
 
 android {
+    // CW 解码已迁移为纯 Kotlin fldigi 引擎, 不再有 native 库;
+    // 取消 armeabi-v7a 强制, 按设备 ABI 打包(含 x86_64 模拟器)
+    defaultConfig {
+    }
+    androidResources {
+        // 显式保留全部语言(防 shrinkResources 丢弃 in/id 印尼语配置); AGP 9 用 localeFilters
+        localeFilters += listOf(
+            "en", "zh", "tr", "in", "id", "es", "ru", "si", "uk"
+        )
+    }
     signingConfigs {
         if (keystoreProperties["storeFile"] != null) {
             create("release") {

app/src/main/AndroidManifest.xml

@@ -14,6 +14,9 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
 
+        <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 <application
         android:name=".MainApplication"
         android:allowBackup="false"
@@ -45,5 +48,9 @@
             android:name="android.telephony.PROPERTY_SATELLITE_DATA_OPTIMIZED"
             android:value="com.rtbishop.look4sat.bg7nta" />
 
+            <service
+            android:name="com.rtbishop.look4sat.app.AprsForegroundService"
+            android:exported="false"
+            android:foregroundServiceType="dataSync" />
     </application>
 </manifest>

app/src/main/java/com/rtbishop/look4sat/AprsForegroundService.kt

@@ -0,0 +1,190 @@
+package com.rtbishop.look4sat.app
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.app.Service
+import android.content.Context
+import android.content.Intent
+import android.content.SharedPreferences
+import android.widget.Toast
+import android.content.pm.ServiceInfo
+import android.os.Build
+import android.os.IBinder
+import com.rtbishop.look4sat.MainApplication
+import com.rtbishop.look4sat.core.presentation.R
+import com.rtbishop.look4sat.core.data.aprs.AprsConfig
+import com.rtbishop.look4sat.core.data.aprs.AprsStore
+import com.rtbishop.look4sat.core.data.aprs.AprsReporter
+import com.rtbishop.look4sat.core.data.aprs.AprsState
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
+
+/**
+ * APRS foreground service: kept alive by a system notification; keeps working across pages.
+ * START_STICKY: auto-restarted after being killed by the system (same strategy as APRSdroid).
+ */
+class AprsForegroundService : Service() {
+
+    companion object {
+        const val ACTION_START = AprsStore.ACTION_START
+        const val ACTION_STOP = AprsStore.ACTION_STOP
+        const val ACTION_REPORT_NOW = AprsStore.ACTION_REPORT_NOW
+        const val CHANNEL_ID = "aprs_service"
+        const val NOTIF_ID = 101
+    }
+
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+    private var reporter: AprsReporter? = null
+    private var lastState: AprsState = AprsState.Idle
+
+    override fun onBind(intent: Intent?): IBinder? = null
+
+    override fun onCreate() {
+        super.onCreate()
+        createChannel()
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        when (intent?.action) {
+            ACTION_STOP -> stopReporting()
+            ACTION_REPORT_NOW -> {
+                if (reporter == null) {
+                    // Service not running: start it first (Toast hint when not configured)
+                    startReporting()
+                }
+                reporter?.reportNow()
+            }
+            else -> startReporting()
+        }
+        return START_STICKY
+    }
+
+    private fun startReporting() {
+        val cfg = AprsStore.loadConfig(this)
+        if (!cfg.enabled || cfg.callsign.isBlank()) {
+            runCatching {
+                Toast.makeText(this, getString(R.string.aprs_toast_not_configured), Toast.LENGTH_SHORT).show()
+            }
+            stopSelf()
+            return
+        }
+        startForegroundWithNotification(cfg)
+        val rep = AprsReporter(
+            configProvider = { AprsStore.loadConfig(this) },
+            positionProvider = { stationPosition() },
+            onState = { lastState = it },
+            onReport = { report ->
+                AprsStore.saveLastReport(this, report.ok, report.detail)
+                updateNotification(cfg)
+                // Report result always surfaces: success = short Toast, failure = long Toast + reason
+                val msg = if (report.ok) {
+                    getString(R.string.aprs_toast_ok)
+                } else {
+                    getString(R.string.aprs_toast_fail, report.detail)
+                }
+                runCatching {
+                    Toast.makeText(this, msg,
+                        if (report.ok) Toast.LENGTH_SHORT else Toast.LENGTH_LONG).show()
+                }
+            }
+        )
+        reporter = rep
+        rep.start()
+    }
+
+    private fun stopReporting() {
+        reporter?.stop()
+        reporter = null
+        stopForeground(STOP_FOREGROUND_REMOVE)
+        stopSelf()
+    }
+
+    private fun startForegroundWithNotification(cfg: AprsConfig) {
+        try {
+            val notif = buildNotification(cfg)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                startForeground(NOTIF_ID, notif, ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC)
+            } else {
+                startForeground(NOTIF_ID, notif)
+            }
+        } catch (e: Exception) {
+            // Vendor ROM / old-system safety net: foreground-start failure only stops the service, never crashes the app
+            stopSelf()
+        }
+    }
+
+    private fun buildNotification(cfg: AprsConfig): Notification {
+        val pi = PendingIntent.getActivity(
+            this, 0, packageManager.getLaunchIntentForPackage(packageName),
+            PendingIntent.FLAG_IMMUTABLE
+        )
+        val stopPi = PendingIntent.getService(
+            this, 1, Intent(this, AprsForegroundService::class.java).setAction(ACTION_STOP),
+            PendingIntent.FLAG_IMMUTABLE
+        )
+        val stateText = when (lastState) {
+            AprsState.Connected -> getString(R.string.aprs_notif_connected)
+            AprsState.Error -> getString(R.string.aprs_notif_error)
+            else -> getString(R.string.aprs_notif_running)
+        }
+        return Notification.Builder(this, CHANNEL_ID)
+            .setSmallIcon(R.drawable.ic_radios)
+            .setContentTitle(getString(R.string.aprs_notif_title, cfg.callsign))
+            .setContentText(stateText)
+            .setContentIntent(pi)
+            .setOngoing(true)
+            .addAction(0, getString(R.string.aprs_notif_stop), stopPi)
+            .build()
+    }
+
+    private fun updateNotification(cfg: AprsConfig) {
+        val nm = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        nm.notify(NOTIF_ID, buildNotification(cfg))
+    }
+
+    /** Report position: station QTH from settings first (per user); live GPS as fallback when invalid */
+    private fun stationPosition(): Pair<Double, Double>? {
+        // 1. Station QTH (position set in settings)
+        val station = runCatching {
+            val container = (application as MainApplication).getMainContainer()
+            container.settingsRepo.stationPosition.value
+        }.getOrNull()
+        if (station != null && (station.latitude != 0.0 || station.longitude != 0.0)) {
+            return Pair(station.latitude, station.longitude)
+        }
+        // 2. Fallback: last live GPS position
+        return runCatching {
+            val lm = getSystemService(Context.LOCATION_SERVICE) as android.location.LocationManager
+            val providers = listOf(
+                android.location.LocationManager.GPS_PROVIDER,
+                android.location.LocationManager.NETWORK_PROVIDER
+            )
+            for (p in providers) {
+                val loc = lm.getLastKnownLocation(p) ?: continue
+                if (loc.latitude != 0.0 || loc.longitude != 0.0) {
+                    return Pair(loc.latitude, loc.longitude)
+                }
+            }
+            null
+        }.getOrNull()
+    }
+
+    private fun createChannel() {
+        val nm = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        val channel = NotificationChannel(
+            CHANNEL_ID, getString(R.string.aprs_notif_channel),
+            NotificationManager.IMPORTANCE_LOW
+        )
+        nm.createNotificationChannel(channel)
+    }
+
+    override fun onDestroy() {
+        reporter?.stop()
+        reporter = null
+        super.onDestroy()
+    }
+}

app/src/main/java/com/rtbishop/look4sat/MainApplication.kt

@@ -30,10 +30,29 @@ class MainApplication : Application(), IContainerProvider {
 
     private lateinit var container: IMainContainer
 
+    /** Global crash capture: stack written to files/crash_log.txt, viewable after restart (user asked for error reports) */
+    private fun installCrashHandler() {
+        val defaultHandler = Thread.getDefaultUncaughtExceptionHandler()
+        Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->
+            runCatching {
+                val log = StringBuilder()
+                log.append("=== Crash ${System.currentTimeMillis()} ===\n")
+                log.append("Thread: ").append(thread.name).append("\n")
+                val sw = java.io.StringWriter()
+                throwable.printStackTrace(java.io.PrintWriter(sw))
+                log.append(sw.toString()).append("\n")
+                val file = java.io.File(filesDir, "crash_log.txt")
+                file.appendText(log.toString())
+            }
+            defaultHandler?.uncaughtException(thread, throwable)
+        }
+    }
+
     override fun getMainContainer(): IMainContainer = container
 
     override fun onCreate() {
         super.onCreate()
+        installCrashHandler()
         container = MainContainer(this)
         // trigger automatic update every 48 hours
         container.appScope.launch { checkAutoUpdate() }

app/src/main/java/com/rtbishop/look4sat/MainScreen.kt

@@ -17,16 +17,23 @@
  */
 package com.rtbishop.look4sat
 
+import androidx.activity.compose.BackHandler
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.animateContentSize
 import androidx.compose.animation.core.LinearEasing
 import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.animateFloat
 import androidx.compose.animation.core.infiniteRepeatable
 import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.spring
 import androidx.compose.animation.core.tween
+import androidx.compose.animation.expandVertically
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.animation.scaleIn
 import androidx.compose.animation.scaleOut
+import androidx.compose.animation.shrinkVertically
 import androidx.compose.animation.slideInHorizontally
 import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.animation.togetherWith
@@ -53,6 +60,9 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -80,13 +90,15 @@ import com.rtbishop.look4sat.core.presentation.RadarDestination
 import com.rtbishop.look4sat.core.presentation.Screen
 import com.rtbishop.look4sat.core.presentation.hasEnoughHeight
 import com.rtbishop.look4sat.core.presentation.hasEnoughWidth
+import com.rtbishop.look4sat.feature.cw.CwDecodeScreen
 import com.rtbishop.look4sat.feature.map.MapDestination
 import com.rtbishop.look4sat.feature.mutual.MutualScreen
 import com.rtbishop.look4sat.feature.mutual.MutualViewModel
 import com.rtbishop.look4sat.feature.passes.PassesDestination
 import com.rtbishop.look4sat.feature.radar.RadarDestination
+import com.rtbishop.look4sat.feature.radar.WavelogLogScreen
+import com.rtbishop.look4sat.feature.status.SatStatusScreen
 import com.rtbishop.look4sat.feature.roaming.RoamingScreen
-import com.rtbishop.look4sat.feature.roaming.RoamingViewModel
 import com.rtbishop.look4sat.feature.satellites.SatellitesDestination
 import com.rtbishop.look4sat.feature.settings.SettingsDestination
 
@@ -132,12 +144,35 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
     val currentKey = backStack.lastOrNull()
     val navigateBack: () -> Unit = { backStack.removeLastOrNull() }
     val fadeTransition = fadeIn(animationSpec = tween(350)) togetherWith fadeOut(animationSpec = tween(350))
-    val navItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Roaming, Screen.Map, Screen.Settings)
-
     val context = LocalContext.current
     val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val trackingState by container.radioTrackingService.state.collectAsStateWithLifecycle()
     val otherSettings by container.settingsRepo.otherSettings.collectAsStateWithLifecycle()
+    // UI settings: sort by screenOrder (empty = default order), then filter by hiddenScreens (Settings always kept)
+    val allNavItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Roaming, Screen.CwDecode, Screen.WavelogLog, Screen.AmSat, Screen.Map, Screen.Settings)
+        .sortedBy { screen ->
+            // Unknown pages (e.g. CwDecode not in old persisted order): use default-order position (Roaming<->Map), then fall back to last
+            val idx = otherSettings.screenOrder.indexOf(screen.screenId)
+            if (idx != -1) idx
+            else com.rtbishop.look4sat.core.presentation.defaultScreenOrder.indexOf(screen.screenId).let {
+                if (it != -1) it else Int.MAX_VALUE
+            }
+        }
+        .filter { it.screenId !in otherSettings.hiddenScreens || it is Screen.Settings }
+    // 4.5.1 foldable menu: main menu (5 bottom-bar slots) + More menu (overflow page)
+    // Legacy migration: persisted subMenuOrder lacks new pages (WavelogLog) -> append to the sub-menu tail
+    val subOrder = (otherSettings.subMenuOrder.ifEmpty { com.rtbishop.look4sat.core.presentation.defaultSubMenuOrder })
+        .let { list -> if ("WavelogLog" in list) list else list + "WavelogLog" }
+        .let { list -> if ("AMSAT" in list) list else list + "AMSAT" }
+    val mainNavItems = remember(allNavItems, subOrder) {
+        allNavItems.filter { it.screenId !in subOrder }.take(5)
+    }
+    val moreNavItems = remember(allNavItems, subOrder) {
+        subOrder.mapNotNull { id -> allNavItems.find { it.screenId == id } }
+    }
+    var moreExpanded by remember { mutableStateOf(false) }
+    // Intercept Back while the More menu is open: close the menu first
+    BackHandler(enabled = moreExpanded) { moreExpanded = false }
     // Activity-scoped so the mutual query results survive navigation to Radar and back
     val mutualViewModel: MutualViewModel = viewModel(
         viewModelStoreOwner = context as ViewModelStoreOwner,
@@ -152,12 +187,15 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
     ) {
         NavigationSuiteScaffold(
             navigationSuiteItems = {
-                navItems.forEach { screen ->
+                mainNavItems.forEach { screen ->
                     val isSelected = when (currentKey) {
                         is Screen.Satellites -> screen is Screen.Satellites
                         is Screen.Passes -> screen is Screen.Passes
                         is Screen.Radar -> screen is Screen.Radar
                         is Screen.Mutual -> screen is Screen.Mutual
+                        is Screen.CwDecode -> screen is Screen.CwDecode
+                        is Screen.WavelogLog -> screen is Screen.WavelogLog
+                        is Screen.AmSat -> screen is Screen.AmSat
                         is Screen.Map -> screen is Screen.Map
                         is Screen.Settings -> screen is Screen.Settings
                         else -> false
@@ -168,11 +206,26 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                         selected = isSelected,
                         onClick = {
                             if (isSelected) return@item
+                            moreExpanded = false
                             while (backStack.size > 1) backStack.removeAt(backStack.size - 1)
                             if (screen !is Screen.Passes) backStack.add(screen)
                         }
                     )
                 }
+                // More-menu button (fixed slot 6; shown only when the sub-menu is non-empty)
+                if (moreNavItems.isNotEmpty()) {
+                    item(
+                        icon = {
+                            Icon(
+                                painterResource(com.rtbishop.look4sat.R.drawable.ic_more),
+                                stringResource(com.rtbishop.look4sat.core.presentation.R.string.nav_more)
+                            )
+                        },
+                        label = { Text(stringResource(com.rtbishop.look4sat.core.presentation.R.string.nav_more)) },
+                        selected = moreExpanded,
+                        onClick = { moreExpanded = !moreExpanded }
+                    )
+                }
             },
             navigationSuiteColors = NavigationSuiteDefaults.colors(
                 navigationRailContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -183,10 +236,11 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                 else -> NavigationSuiteType.ShortNavigationBarMedium
             }
         ) {
-            Column {
+            Box {
+                Column(modifier = Modifier.fillMaxSize()) {
                     NavDisplay(
                         backStack = backStack,
-                    modifier = Modifier.weight(1f),
+                        modifier = Modifier.weight(1f).fillMaxWidth(),
                         onBack = navigateBack,
                         transitionSpec = { fadeTransition },
                         popTransitionSpec = { fadeTransition },
@@ -227,11 +281,16 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                                 )
                             }
                             entry<Screen.Roaming> {
-                            val roamingViewModel: RoamingViewModel = viewModel(
+                                RoamingScreen()
-                                viewModelStoreOwner = context as ViewModelStoreOwner,
+                            }
-                                factory = RoamingViewModel.factory(container)
+                            entry<Screen.CwDecode> {
-                            )
+                                CwDecodeScreen()
-                            RoamingScreen(viewModel = roamingViewModel)
+                            }
+                            entry<Screen.AmSat> {
+                                SatStatusScreen(container = container)
+                            }
+                            entry<Screen.WavelogLog> {
+                                WavelogLogScreen(queue = container.wavelogQueue)
                             }
                             entry<Screen.Settings> {
                                 SettingsDestination()
@@ -271,7 +330,7 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                             )
                             Spacer(modifier = Modifier.width(8.dp))
                             Text(
-                            text = "Tracking: ${trackingState.currentPass?.name ?: ""}",
+                                text = stringResource(com.rtbishop.look4sat.core.presentation.R.string.tracking_status, trackingState.currentPass?.name ?: ""),
                                 fontSize = 13.sp,
                                 fontWeight = FontWeight.Medium,
                                 color = MaterialTheme.colorScheme.onPrimaryContainer,
@@ -287,6 +346,27 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                         }
                     }
                 }
+                // More-menu popup panel (overlays content above the bottom bar; spring bounce)
+                AnimatedVisibility(
+                    visible = moreExpanded,
+                    modifier = Modifier.fillMaxSize(),
+                    enter = expandVertically(
+                        animationSpec = spring(dampingRatio = Spring.DampingRatioMediumBouncy)
+                    ) + fadeIn(),
+                    exit = shrinkVertically() + fadeOut()
+                ) {
+                    MoreMenuPopup(
+                        items = moreNavItems,
+                        currentKey = currentKey,
+                        onDismiss = { moreExpanded = false },
+                        onSelect = { screen ->
+                            moreExpanded = false
+                            while (backStack.size > 1) backStack.removeAt(backStack.size - 1)
+                            if (screen !is Screen.Passes) backStack.add(screen)
+                        }
+                    )
+                }
+            }
         }
     }
 }

app/src/main/java/com/rtbishop/look4sat/MoreMenuPopup.kt

@@ -0,0 +1,106 @@
+/*
+ * MoreMenuPopup.kt - bottom-nav "More" second-level menu popup panel (4.5.1).
+ *
+ * Overlays the content area (above the bottom bar, right-aligned), vertical menu items (icon+text+arrow),
+ * current page highlighted; tap the scrim to close, tap an item to navigate. Open/close animation is driven by the caller
+ * (MainScreen's AnimatedVisibility + spring).
+ */
+package com.rtbishop.look4sat
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation3.runtime.NavKey
+import com.rtbishop.look4sat.core.presentation.Screen
+
+@Composable
+fun MoreMenuPopup(
+    items: List<Screen>,
+    currentKey: NavKey?,
+    onDismiss: () -> Unit,
+    onSelect: (Screen) -> Unit
+) {
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.scrim.copy(alpha = 0.35f))
+            .clickable(onClick = onDismiss)
+    ) {
+        Card(
+            modifier = Modifier
+                .align(Alignment.BottomEnd)
+                .padding(12.dp),
+            shape = RoundedCornerShape(12.dp),
+            colors = CardDefaults.cardColors(
+                containerColor = MaterialTheme.colorScheme.surfaceContainerHigh
+            )
+        ) {
+            Column(modifier = Modifier.padding(vertical = 4.dp)) {
+                items.forEach { screen ->
+                    val isSelected = when (currentKey) {
+                        is Screen.Satellites -> screen is Screen.Satellites
+                        is Screen.Passes -> screen is Screen.Passes
+                        is Screen.Radar -> screen is Screen.Radar
+                        is Screen.Mutual -> screen is Screen.Mutual
+                        is Screen.CwDecode -> screen is Screen.CwDecode
+                        is Screen.WavelogLog -> screen is Screen.WavelogLog
+                        is Screen.Map -> screen is Screen.Map
+                        is Screen.Settings -> screen is Screen.Settings
+                        else -> false
+                    }
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .clickable { onSelect(screen) }
+                            .padding(horizontal = 16.dp, vertical = 12.dp)
+                    ) {
+                        Icon(
+                            painter = painterResource(screen.iconResId),
+                            contentDescription = stringResource(screen.titleResId),
+                            tint = if (isSelected) MaterialTheme.colorScheme.primary
+                            else MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.size(20.dp)
+                        )
+                        Spacer(modifier = Modifier.width(12.dp))
+                        Text(
+                            text = stringResource(screen.titleResId),
+                            fontSize = 14.sp,
+                            fontWeight = if (isSelected) FontWeight.Bold else FontWeight.Normal,
+                            color = if (isSelected) MaterialTheme.colorScheme.primary
+                            else MaterialTheme.colorScheme.onSurface,
+                            modifier = Modifier.weight(1f)
+                        )
+                        Text(
+                            text = "›",
+                            fontSize = 16.sp,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant
+                        )
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/res/drawable/ic_more.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z" />
+</vector>

build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/ApplicationPlugin.kt

@@ -31,6 +31,7 @@ internal class ApplicationPlugin : Plugin<Project> {
             implementation(project(":core:data"))
             implementation(project(":core:domain"))
             implementation(project(":core:presentation"))
+            implementation(project(":feature:cw"))
             implementation(project(":feature:map"))
             implementation(project(":feature:mutual"))
             implementation(project(":feature:passes"))
@@ -38,6 +39,7 @@ internal class ApplicationPlugin : Plugin<Project> {
             implementation(project(":feature:roaming"))
             implementation(project(":feature:satellites"))
             implementation(project(":feature:settings"))
+            implementation(project(":feature:status"))
             implementation(libs.androidx.core.splashscreen)
             implementation(libs.compose.material3.adaptive)
             implementation(libs.compose.navigation3)

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsIsClient.kt

@@ -0,0 +1,106 @@
+package com.rtbishop.look4sat.core.data.aprs
+
+import com.rtbishop.look4sat.core.domain.aprs.AprsPacket
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.io.OutputStreamWriter
+import java.io.PrintWriter
+import java.net.InetSocketAddress
+import java.net.Socket
+
+/**
+ * APRS-IS TCP client (reverse-ported from APRSdroid TcpUploader.scala).
+ * Plain-text protocol: one login line + one packet per line; 30 s reconnect after drop.
+ */
+class AprsIsClient(
+    private val host: String,
+    private val port: Int,
+    private val callsign: String,
+    private val ssid: String,
+    private val passcode: Int,
+    private val version: String,
+    private val filter: String = "",
+    private val timeoutSec: Int = 120
+) {
+    private var socket: Socket? = null
+    private var writer: PrintWriter? = null
+    private var reader: BufferedReader? = null
+    private val lock = Any()
+
+    val isConnected: Boolean
+        get() = synchronized(lock) { socket?.isConnected == true && !socket!!.isClosed }
+
+    /** Connect + login (synchronous/blocking; call from a background thread) */
+    @Throws(Exception::class)
+    fun connect() {
+        disconnect()
+        val s = Socket()
+        s.connect(InetSocketAddress(host, port), 30_000)
+        s.soTimeout = timeoutSec * 1000
+        s.tcpNoDelay = true
+        synchronized(lock) {
+            socket = s
+            writer = PrintWriter(OutputStreamWriter(s.getOutputStream(), Charsets.ISO_8859_1), true)
+            reader = BufferedReader(InputStreamReader(s.getInputStream(), Charsets.ISO_8859_1), 256)
+        }
+        // Login line
+        val login = AprsPacket.formatLogin(callsign, ssid, passcode, version) + filter
+        writer?.println(login)
+        // Read the login response (aprsc replies # logresp ... verified/unverified)
+        runCatching {
+            s.soTimeout = 8000
+            val resp = reader?.readLine()
+            if (resp != null && (resp.contains("Invalid", ignoreCase = true) ||
+                    resp.contains("unverified", ignoreCase = true))) {
+                throw IllegalArgumentException(resp.trim())
+            }
+            // Restore timeout
+            s.soTimeout = timeoutSec * 1000
+        }
+    }
+
+    /**
+     * Sends one APRS packet (one line) and tries to read the server ack.
+     * Returns null=failed to send; Pair(ok, detail)=result (server error text lives in detail)
+     */
+    fun sendPacket(packetLine: String): Pair<Boolean, String>? {
+        synchronized(lock) {
+            val w = writer ?: return null
+            w.println(packetLine)
+            if (w.checkError()) return Pair(false, "write failed")
+        }
+        // Try to read the server response (short 3 s timeout; APRS-IS replies with an error line on bad format)
+        return runCatching {
+            val s = socket ?: return@runCatching Pair(true, "OK")
+            val oldTimeout = s.soTimeout
+            s.soTimeout = 3000
+            try {
+                val resp = reader?.readLine()
+                if (resp != null && (resp.contains("Invalid", ignoreCase = true) ||
+                        resp.contains("error", ignoreCase = true))) {
+                    Pair(false, resp.trim())
+                } else {
+                    Pair(true, if (resp.isNullOrBlank()) "OK" else resp.trim())
+                }
+            } finally {
+                s.soTimeout = oldTimeout
+            }
+        }.getOrElse { Pair(true, "OK") }
+    }
+
+    /** Read one line (server response; throws on timeout) */
+    fun readLine(): String? {
+        return reader?.readLine()
+    }
+
+    fun disconnect() {
+        synchronized(lock) {
+            runCatching { writer?.close() }
+            runCatching { reader?.close() }
+            runCatching { socket?.close() }
+            writer = null
+            reader = null
+            socket = null
+        }
+    }
+}

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsReporter.kt

@@ -0,0 +1,126 @@
+package com.rtbishop.look4sat.core.data.aprs
+
+import com.rtbishop.look4sat.core.domain.aprs.AprsPacket
+import com.rtbishop.look4sat.core.domain.aprs.AprsPosition
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+
+/** APRS connection state */
+enum class AprsState { Idle, Connecting, Connected, Disconnected, Error }
+
+/** APRS config (persisted in SharedPreferences, saved as filled) */
+data class AprsConfig(
+    val enabled: Boolean = false,
+    val server: String = "euro.aprs2.net",
+    val port: Int = 14580,
+    val callsign: String = "",
+    val ssid: String = "",
+    val passcode: String = "",
+    val intervalMin: Int = 5,
+    val statusText: String = "Look4Sat APRS",
+    val symbolTable: String = "/",
+    val symbolCode: String = ">",
+    val includeCourseSpeed: Boolean = true,
+    val includeAltitude: Boolean = true
+)
+
+/** APRS report result */
+data class AprsReport(
+    val timestamp: Long,
+    val packet: String,
+    val ok: Boolean,
+    val detail: String
+)
+
+/** Report scheduler (periodic + manual trigger); connection management lives in the foreground service */
+class AprsReporter(
+    private val configProvider: () -> AprsConfig,
+    private val positionProvider: () -> Pair<Double, Double>? = { null },
+    private val onState: (AprsState) -> Unit = {},
+    private val onReport: (AprsReport) -> Unit = {}
+) {
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+    private var client: AprsIsClient? = null
+    private var job: Job? = null
+    private var manualJob: Job? = null
+
+    val isRunning: Boolean get() = job?.isActive == true
+
+    /** Start periodic reporting (called by the foreground service) */
+    fun start() {
+        stop()
+        val cfg = configProvider()
+        if (!cfg.enabled || cfg.callsign.isBlank()) {
+            onState(AprsState.Error)
+            return
+        }
+        job = scope.launch {
+            while (isActive) {
+                reportOnce()
+                delay(cfg.intervalMin.coerceAtLeast(1) * 60_000L)
+            }
+        }
+    }
+
+    fun stop() {
+        job?.cancel()
+        job = null
+        runCatching { client?.disconnect() }
+        client = null
+        onState(AprsState.Idle)
+    }
+
+    /** Trigger one report manually (immediately, without waiting for the cycle) */
+    fun reportNow() {
+        manualJob?.cancel()
+        manualJob = scope.launch { reportOnce() }
+    }
+
+    private suspend fun reportOnce() {
+        val cfg = configProvider()
+        if (!cfg.enabled || cfg.callsign.isBlank()) return
+        onState(AprsState.Connecting)
+        try {
+            val c = client ?: AprsIsClient(
+                host = cfg.server,
+                port = cfg.port,
+                callsign = cfg.callsign,
+                ssid = cfg.ssid,
+                passcode = cfg.passcode.toIntOrNull()?.takeIf { it >= 0 } ?: AprsPacket.passcode(cfg.callsign),
+                version = "Look4Sat 4.5.4"
+            ).also { client = it }
+            if (!c.isConnected) c.connect()
+            onState(AprsState.Connected)
+
+            val pos = positionProvider()
+            val packetLine = buildPositionPacket(cfg, pos?.first, pos?.second)
+            val result = c.sendPacket(packetLine)
+            val ok = result?.first == true
+            val detail = result?.second ?: "no connection"
+            onReport(AprsReport(System.currentTimeMillis(), packetLine, ok, detail))
+            if (ok) onState(AprsState.Connected) else onState(AprsState.Error)
+        } catch (e: Exception) {
+            runCatching { client?.disconnect() }
+            client = null
+            onState(AprsState.Error)
+            onReport(AprsReport(System.currentTimeMillis(), "", false, e.message ?: "error"))
+        }
+    }
+
+    /** Build position packet: BG7NTA-5>APRS:=DDMM.MMN/DDDMM.MME<status text */
+    private fun buildPositionPacket(cfg: AprsConfig, lat: Double? = null, lon: Double? = null): String {
+        val source = AprsPacket.formatCallSsid(cfg.callsign, cfg.ssid)
+        val pos = AprsPosition(
+            latitude = lat ?: 0.0,
+            longitude = lon ?: 0.0,
+            symbolTable = cfg.symbolTable.firstOrNull() ?: '/',
+            symbolCode = cfg.symbolCode.firstOrNull() ?: '>'
+        )
+        return "$source>APRS:=${pos.toUncompressedString()}${cfg.statusText}"
+    }
+}

core/data/src/main/java/com/rtbishop/look4sat/core/data/aprs/AprsStore.kt

@@ -0,0 +1,83 @@
+package com.rtbishop.look4sat.core.data.aprs
+
+import android.content.Context
+
+/**
+ * APRS config storage + service action constants (shared by feature/settings and the app service,
+ * so feature never depends on app).
+ */
+object AprsStore {
+
+    const val ACTION_START = "com.rtbishop.look4sat.aprs.START"
+    const val ACTION_STOP = "com.rtbishop.look4sat.aprs.STOP"
+    const val ACTION_REPORT_NOW = "com.rtbishop.look4sat.aprs.REPORT_NOW"
+    const val SERVICE_CLASS = "com.rtbishop.look4sat.app.AprsForegroundService"
+
+    private const val PREFS = "aprs_config"
+    private const val KEY_ENABLED = "enabled"
+    private const val KEY_SERVER = "server"
+    private const val KEY_PORT = "port"
+    private const val KEY_CALLSIGN = "callsign"
+    private const val KEY_SSID = "ssid"
+    private const val KEY_PASSCODE = "passcode"
+    private const val KEY_INTERVAL = "interval"
+    private const val KEY_STATUS = "status"
+    private const val KEY_SYMBOL_TABLE = "symbol_table"
+    private const val KEY_SYMBOL_CODE = "symbol_code"
+    private const val KEY_LAST_TIME = "last_report_time"
+    private const val KEY_LAST_OK = "last_report_ok"
+    private const val KEY_LAST_DETAIL = "last_report_detail"
+
+    /** Read config (saved as filled; no need to re-enter each time) */
+    fun loadConfig(context: Context): AprsConfig {
+        val p = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+        return AprsConfig(
+            enabled = p.getBoolean(KEY_ENABLED, false),
+            server = p.getString(KEY_SERVER, "euro.aprs2.net") ?: "euro.aprs2.net",
+            port = p.getInt(KEY_PORT, 14580),
+            callsign = p.getString(KEY_CALLSIGN, "") ?: "",
+            ssid = p.getString(KEY_SSID, "") ?: "",
+            passcode = p.getString(KEY_PASSCODE, "") ?: "",
+            intervalMin = p.getInt(KEY_INTERVAL, 5),
+            statusText = p.getString(KEY_STATUS, "Look4Sat APRS") ?: "Look4Sat APRS",
+            symbolTable = p.getString(KEY_SYMBOL_TABLE, "/") ?: "/",
+            symbolCode = p.getString(KEY_SYMBOL_CODE, ">") ?: ">"
+        )
+    }
+
+    /** Last report result (shown on the settings card) */
+    data class LastReport(val time: Long = 0L, val ok: Boolean = false, val detail: String = "")
+
+    fun loadLastReport(context: Context): LastReport {
+        val p = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
+        return LastReport(
+            time = p.getLong(KEY_LAST_TIME, 0L),
+            ok = p.getBoolean(KEY_LAST_OK, false),
+            detail = p.getString(KEY_LAST_DETAIL, "") ?: ""
+        )
+    }
+
+    fun saveLastReport(context: Context, ok: Boolean, detail: String) {
+        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()
+            .putLong(KEY_LAST_TIME, System.currentTimeMillis())
+            .putBoolean(KEY_LAST_OK, ok)
+            .putString(KEY_LAST_DETAIL, detail)
+            .apply()
+    }
+
+    /** Save config */
+    fun saveConfig(context: Context, cfg: AprsConfig) {
+        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()
+            .putBoolean(KEY_ENABLED, cfg.enabled)
+            .putString(KEY_SERVER, cfg.server)
+            .putInt(KEY_PORT, cfg.port)
+            .putString(KEY_CALLSIGN, cfg.callsign)
+            .putString(KEY_SSID, cfg.ssid)
+            .putString(KEY_PASSCODE, cfg.passcode)
+            .putInt(KEY_INTERVAL, cfg.intervalMin)
+            .putString(KEY_STATUS, cfg.statusText)
+            .putString(KEY_SYMBOL_TABLE, cfg.symbolTable)
+            .putString(KEY_SYMBOL_CODE, cfg.symbolCode)
+            .apply()
+    }
+}

core/data/src/main/java/com/rtbishop/look4sat/core/data/injection/MainContainer.kt

@@ -29,6 +29,8 @@ import com.rtbishop.look4sat.core.data.framework.Ft817Controller
 import com.rtbishop.look4sat.core.data.framework.Ic705Controller
 import com.rtbishop.look4sat.core.data.framework.NetworkReporter
 import com.rtbishop.look4sat.core.data.framework.RadioTrackingService
+import com.rtbishop.look4sat.core.data.repository.AmSatRepository
+import com.rtbishop.look4sat.core.domain.amsat.AmSatApiClient
 import com.rtbishop.look4sat.core.data.repository.DatabaseRepo
 import com.rtbishop.look4sat.core.data.repository.SatelliteRepo
 import com.rtbishop.look4sat.core.data.repository.SelectionRepo
@@ -40,6 +42,9 @@ import com.rtbishop.look4sat.core.data.usecase.AddToCalendar
 import com.rtbishop.look4sat.core.data.usecase.AudioCapture
 import com.rtbishop.look4sat.core.data.usecase.SaveImage
 import com.rtbishop.look4sat.core.data.usecase.ShowToast
+import com.rtbishop.look4sat.core.domain.wavelog.IWavelogQueueStore
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogQueue
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogUploader
 import com.rtbishop.look4sat.core.domain.model.RadioControlSettings
 import com.rtbishop.look4sat.core.domain.repository.IDatabaseRepo
 import com.rtbishop.look4sat.core.domain.repository.IMainContainer
@@ -66,16 +71,19 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import okhttp3.OkHttpClient
+import com.rtbishop.look4sat.core.data.wavelog.LotwSatellitesRepo
 
 class MainContainer(private val context: Context) : IMainContainer {
 
     private val localSource = provideLocalSource()
+    private val remoteSource by lazy { provideRemoteSource() }
     private val mainHandler = CoroutineExceptionHandler { _, error -> println("MainHandler: $error") }
     override val appScope = CoroutineScope(SupervisorJob() + Dispatchers.Default + mainHandler)
     override val settingsRepo = provideSettingsRepo()
     override val selectionRepo = provideSelectionRepo()
     override val satelliteRepo = provideSatelliteRepo()
     override val databaseRepo = provideDatabaseRepo()
+    override val amSatRepo = AmSatRepository(com.rtbishop.look4sat.core.domain.amsat.AmSatApiClient())
     override val radioTrackingService: IRadioTrackingService by lazy {
         val manager = context.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
         RadioTrackingService(appScope, manager, satelliteRepo, settingsRepo)
@@ -96,6 +104,22 @@ class MainContainer(private val context: Context) : IMainContainer {
 
     override fun provideSaveImage(): ISaveImage = SaveImage(context)
 
+    // WaveLog logging (4.5.2): local queue + uploader (shared instance)
+    override val wavelogQueue: WavelogQueue by lazy {
+        val prefs = context.getSharedPreferences("wavelog", Context.MODE_PRIVATE)
+        WavelogQueue(object : IWavelogQueueStore {
+            override fun load(): String = prefs.getString("wavelog_queue", "[]") ?: "[]"
+            override fun save(json: String) = prefs.edit().putString("wavelog_queue", json).apply()
+        })
+    }
+    override fun provideWavelogUploader(): WavelogUploader = WavelogUploader(settingsRepo, wavelogQueue)
+
+    private val lotwRepo: LotwSatellitesRepo by lazy {
+        LotwSatellitesRepo(context).also { it.restore() }
+    }
+
+    override fun provideLotwSatellitesRepo(): com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo = lotwRepo
+
     override fun provideBluetoothReporter(): IReporter {
         val manager = context.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
         val rc = settingsRepo.rcSettings.value
@@ -149,7 +173,6 @@ class MainContainer(private val context: Context) : IMainContainer {
     private fun provideDatabaseRepo(): IDatabaseRepo {
         val dbDispatcher = Dispatchers.Default
         val dataParser = DataParser(dbDispatcher)
-        val remoteSource = provideRemoteSource()
         return DatabaseRepo(dbDispatcher, dataParser, localSource, remoteSource, settingsRepo)
     }
 
@@ -160,7 +183,14 @@ class MainContainer(private val context: Context) : IMainContainer {
     }
 
     private fun provideRemoteSource(): IRemoteSource {
-        return RemoteSource(Dispatchers.IO, context.contentResolver, OkHttpClient.Builder().build())
+        return RemoteSource(
+            Dispatchers.IO, context.contentResolver,
+            OkHttpClient.Builder()
+                .connectTimeout(15, java.util.concurrent.TimeUnit.SECONDS)
+                .readTimeout(20, java.util.concurrent.TimeUnit.SECONDS)
+                .writeTimeout(20, java.util.concurrent.TimeUnit.SECONDS)
+                .build()
+        )
     }
 
     private fun provideSatelliteRepo(): ISatelliteRepo {
@@ -176,6 +206,6 @@ class MainContainer(private val context: Context) : IMainContainer {
         val appPrefsFileName = "${context.packageName}_preferences"
         val appPreferences = context.getSharedPreferences(appPrefsFileName, Context.MODE_PRIVATE)
         val appVersionName = context.packageManager.getPackageInfo(context.packageName, 0).versionName ?: "4.0.4"
-        return SettingsRepo(manager, appPreferences, appVersionName)
+        return SettingsRepo(context, manager, appPreferences, appVersionName)
     }
 }

core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/AmSatRepository.kt

@@ -0,0 +1,93 @@
+package com.rtbishop.look4sat.core.data.repository
+
+import com.rtbishop.look4sat.core.domain.amsat.AmSatApiClient
+import com.rtbishop.look4sat.core.domain.amsat.ApiReport
+import com.rtbishop.look4sat.core.domain.model.SatDay
+import com.rtbishop.look4sat.core.domain.model.SatReport
+import com.rtbishop.look4sat.core.domain.model.SatSlot
+import com.rtbishop.look4sat.core.domain.model.SatStatus
+import com.rtbishop.look4sat.core.domain.model.SatStatusPage
+import com.rtbishop.look4sat.core.domain.repository.IAmSatRepository
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.util.Calendar
+import java.util.TimeZone
+
+/** AMSAT status repository: official API v1 -> SatStatusPage (replaces the HTML parser). */
+class AmSatRepository(private val apiClient: AmSatApiClient) : IAmSatRepository {
+
+    override suspend fun fetchStatus(): SatStatusPage? = withContext(Dispatchers.IO) {
+        val nowSec = System.currentTimeMillis() / 1000
+        val names = apiClient.fetchCatalog()
+        val reports = apiClient.fetchAllReports(hours = 168)
+        if (names.isEmpty() && reports.isEmpty()) return@withContext null
+        val statuses = buildStatuses(names, reports, nowSec)
+        val reportMap = reports.associate { it.id to toSatReport(it) }
+        SatStatusPage(System.currentTimeMillis(), statuses, reportMap)
+    }
+
+    /** Build one SatStatus (6 days x 12 slots) per catalog satellite, slotting reports by age. */
+    private fun buildStatuses(names: List<String>, reports: List<ApiReport>, nowSec: Long): List<SatStatus> {
+        val byName = reports.groupBy { it.name }
+        val monthAbbr = arrayOf("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
+        val utc = Calendar.getInstance(TimeZone.getTimeZone("UTC"))
+        val labels = (0 until 6).map { d ->
+            utc.timeInMillis = (nowSec - d * 86400L) * 1000
+            "${monthAbbr[utc.get(Calendar.MONTH)]} ${utc.get(Calendar.DAY_OF_MONTH)}"
+        }
+        return names.map { name ->
+            val slots = (0 until 72).map { slotIdx ->
+                val slotStart = nowSec - (slotIdx + 1) * 7200L
+                val slotEnd = nowSec - slotIdx * 7200L
+                val inSlot = byName[name].orEmpty().filter { it.reportedTimeUtcSec in slotStart until slotEnd }
+                if (inSlot.isEmpty()) {
+                    SatSlot(statusColor = NoReportGray, count = 0)
+                } else {
+                    val newest = inSlot.maxByOrNull { it.reportedTimeUtcSec }!!
+                    SatSlot(
+                        statusColor = statusColorOf(newest.report),
+                        count = inSlot.size,
+                        reportIds = inSlot.map { it.id }
+                    )
+                }
+            }
+            val days = (0 until 6).map { d ->
+                SatDay(dateLabel = labels[d], slots = slots.subList(d * 12, (d + 1) * 12))
+            }
+            SatStatus(name = name, days = days)
+        }
+    }
+
+    private fun toSatReport(r: ApiReport): SatReport {
+        val cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"))
+        cal.timeInMillis = r.reportedTimeUtcSec * 1000
+        val hh = cal.get(Calendar.HOUR_OF_DAY).toString().padStart(2, '0')
+        val mm = cal.get(Calendar.MINUTE).toString().padStart(2, '0')
+        val y = cal.get(Calendar.YEAR)
+        val mo = (cal.get(Calendar.MONTH) + 1).toString().padStart(2, '0')
+        val d = cal.get(Calendar.DAY_OF_MONTH).toString().padStart(2, '0')
+        return SatReport(
+            id = r.id,
+            statusText = r.report,
+            call = r.callsign,
+            grid = r.gridSquare,
+            dateUtc = "$y-$mo-$d",
+            timeUtc = "$hh:$mm UTC"
+        )
+    }
+
+    private fun statusColorOf(report: String): Long = when (report.lowercase()) {
+        "heard", "crew active" -> ActiveBlue
+        "telemetry only" -> TlmOrange
+        "not heard" -> NotHeardPink
+        else -> ConflictDeepOrange
+    }
+
+    companion object {
+        private const val ActiveBlue = 0xFF648FFF
+        private const val TlmOrange = 0xFFFFB000
+        private const val NotHeardPink = 0xFFDC267F
+        private const val ConflictDeepOrange = 0xFFFE6100
+        private const val NoReportGray = 0xFFC0C0C0
+    }
+}

core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/DatabaseRepo.kt

@@ -69,23 +69,33 @@ class DatabaseRepo(
         val dataSourcesSettings = settingsRepo.dataSourcesSettings.value
         val tleUrls = buildMap {
             putAll(Sources.satelliteDataUrls)
-            if (dataSourcesSettings.useCustomTLE) put(customSourceType, dataSourcesSettings.tleUrl)
+            // Switch on + non-empty URL -> All uses the custom URL; otherwise the default URL (online-update default source)
+            put("All", if (dataSourcesSettings.useCustomTLE && dataSourcesSettings.tleUrl.isNotBlank())
+                dataSourcesSettings.tleUrl else Sources.defaultTleUrl)
         }.filterValues { it.isNotBlank() }
         val radioUrls = buildMap {
             putAll(Sources.transceiversDataUrls)
-            if (dataSourcesSettings.useCustomTransceivers) put(customSourceType, dataSourcesSettings.transceiversUrl)
+            put("SatNOGS", if (dataSourcesSettings.useCustomTransceivers && dataSourcesSettings.transceiversUrl.isNotBlank())
+                dataSourcesSettings.transceiversUrl else Sources.defaultTransceiversUrl)
         }.filterValues { it.isNotBlank() }
         // launch all network requests concurrently
         val tleJobs = tleUrls.values.map { url -> async { url to remoteSource.getNetworkStream(url) } }
         val radioJobs = radioUrls.values.map { url -> async { url to remoteSource.getNetworkStream(url) } }
+        // Count successful sources: zero successes = update failed (timestamp untouched, exception surfaced in the UI)
+        val tleResults = tleJobs.awaitAll()
+        val radioResults = radioJobs.awaitAll()
+        val successCount = tleResults.count { it.second != null } + radioResults.count { it.second != null }
+        if (successCount == 0) {
+            throw java.io.IOException("All data sources failed to download")
+        }
         // parse fetched data concurrently and associate with types
-        val importedEntries = tleJobs.awaitAll().flatMap { (url, stream) ->
+        val importedEntries = tleResults.flatMap { (url, stream) ->
             val type = tleUrls.entries.find { it.value == url }?.key ?: customSourceType
             stream?.let { parseSatelliteStream(url, unwrapIfZipped(url, it)) }.orEmpty().also { entries ->
                 settingsRepo.setSatelliteTypeIds(type, entries.map { it.catnum })
             }
         }
-        val importedRadios = radioJobs.awaitAll().flatMap { (url, stream) ->
+        val importedRadios = radioResults.flatMap { (url, stream) ->
             stream?.let { dataParser.parseJSONStream(unwrapIfZipped(url, it)) }.orEmpty()
         }
         // insert parsed data into the database

core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/SettingsRepo.kt

@@ -29,6 +29,7 @@ import com.rtbishop.look4sat.core.domain.model.OtherSettings
 import com.rtbishop.look4sat.core.domain.model.PassesSettings
 import com.rtbishop.look4sat.core.domain.model.RCSettings
 import com.rtbishop.look4sat.core.domain.model.RadioControlSettings
+import com.rtbishop.look4sat.core.domain.source.Sources
 import com.rtbishop.look4sat.core.domain.predict.GeoPos
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import com.rtbishop.look4sat.core.domain.utility.positionToQth
@@ -39,6 +40,7 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.update
 
 class SettingsRepo(
+    private val context: android.content.Context,
     private val locationManager: LocationManager,
     private val preferences: SharedPreferences,
     override val appVersionName: String
@@ -76,6 +78,8 @@ class SettingsRepo(
     private val keyStateOfUtc = "stateOfUtc"
     private val keyStateOfLightTheme = "stateOfLightTheme"
     private val keyStateOfNightMode = "stateOfNightMode"
+    private val keyHiddenScreens = "hiddenScreens"
+    private val keyScreenOrder = "screenOrder"
     private val keyStationAltitude = "stationAltitude"
     private val keyStationLatitude = "stationLatitude"
     private val keyStationLongitude = "stationLongitude"
@@ -91,6 +95,11 @@ class SettingsRepo(
     private val keyUseCustomTransceivers = "useCustomTransceivers"
     private val keyTleUrl = "tleUrl"
     private val keyTransceiversUrl = "transceiversUrl"
+    private val keySubMenuOrder = "subMenuOrder"
+    private val keyWavelogUrl = "wavelogUrl"
+    private val keyWavelogApiKey = "wavelogApiKey"
+    private val keyWavelogStationId = "wavelogStationId"
+    private val keyWavelogAutoUpload = "wavelogAutoUpload"
     private val separatorComma = ","
 
     //region # Satellites selection settings
@@ -178,23 +187,41 @@ class SettingsRepo(
         return true
     }
 
-    override fun setStationPosition(): Boolean {
+    /** GPS fix: one-shot getCurrentLocation (GPS first, 15 s timeout); returns true only with a fix */
+    override suspend fun setStationPosition(): Boolean {
+        // Permission gate: fail fast without location permission (no swallowed exceptions)
+        if (androidx.core.content.ContextCompat.checkSelfPermission(
+                context, android.Manifest.permission.ACCESS_FINE_LOCATION
+            ) != android.content.pm.PackageManager.PERMISSION_GRANTED
+        ) {
+            println("GPS: no fine location permission")
+            return false
+        }
         if (!LocationManagerCompat.isLocationEnabled(locationManager)) return false
-        try {
+        return kotlinx.coroutines.suspendCancellableCoroutine { cont ->
-            val hasGps = LocationManagerCompat.hasProvider(locationManager, providerGps)
+            val signal = android.os.CancellationSignal()
-            val hasNet = LocationManagerCompat.hasProvider(locationManager, providerNet)
+            val handler = android.os.Handler(android.os.Looper.getMainLooper())
-            val provider = if (hasGps) providerGps else if (hasNet) providerNet else providerDef
+            val executor = java.util.concurrent.Executor { handler.post(it) }
-            val location = locationManager.getLastKnownLocation(providerDef)
+            // 15 s timeout
-            if (location == null || System.currentTimeMillis() - location.time > 600_000L) {
+            val timeout = handler.postDelayed({
-                println("Requesting location for $provider provider")
+                signal.cancel()
-                locationManager.requestLocationUpdates(provider, 0L, 0f, this)
+                if (cont.isActive) cont.resume(false) { }
-            } else {
+            }, 15_000L)
+            val listener = androidx.core.util.Consumer<Location> { location ->
+                handler.removeCallbacksAndMessages(null)
                 setStationPosition(location.latitude, location.longitude, location.altitude)
+                if (cont.isActive) cont.resume(true) { }
             }
+            val hasGps = LocationManagerCompat.hasProvider(locationManager, providerGps)
+            val provider = if (hasGps) providerGps else providerNet
+            try {
+                LocationManagerCompat.getCurrentLocation(locationManager, provider, signal, executor, listener)
             } catch (exception: SecurityException) {
-            println("No permissions were given - $exception")
+                handler.removeCallbacksAndMessages(null)
+                if (cont.isActive) cont.resume(false) { }
+            }
+            cont.invokeOnCancellation { signal.cancel(); handler.removeCallbacksAndMessages(null) }
         }
-        return true
     }
 
     override fun setStationPosition(locator: String): Boolean {
@@ -356,6 +383,13 @@ class SettingsRepo(
                 putString(keySstvMode, new.sstvMode)
                 putLong(keyLowElevation, new.lowElevation.toRawBits())
                 putLong(keyHighElevation, new.highElevation.toRawBits())
+                putStringSet(keyHiddenScreens, new.hiddenScreens.toSet())
+                putString(keyScreenOrder, new.screenOrder.joinToString(","))
+                putString(keySubMenuOrder, new.subMenuOrder.joinToString(","))
+                putString(keyWavelogUrl, new.wavelogUrl)
+                putString(keyWavelogApiKey, new.wavelogApiKey)
+                putString(keyWavelogStationId, new.wavelogStationId)
+                putBoolean(keyWavelogAutoUpload, new.wavelogAutoUpload)
             }
             new
         }
@@ -371,8 +405,15 @@ class SettingsRepo(
         shouldSeeWarning = preferences.getBoolean(keyShouldSeeWarning, true),
         shouldSeeWhatsNew = preferences.getBoolean(keyShouldSeeWhatsNew, true),
         sstvMode = preferences.getString(keySstvMode, null) ?: "Auto",
+        hiddenScreens = preferences.getStringSet(keyHiddenScreens, emptySet())?.toList() ?: emptyList(),
+        screenOrder = preferences.getString(keyScreenOrder, null)?.split(",")?.filter { it.isNotBlank() } ?: emptyList(),
+        subMenuOrder = preferences.getString(keySubMenuOrder, null)?.split(",")?.filter { it.isNotBlank() } ?: emptyList(),
         lowElevation = Double.fromBits(preferences.getLong(keyLowElevation, 15.0.toRawBits())),
-        highElevation = Double.fromBits(preferences.getLong(keyHighElevation, 45.0.toRawBits()))
+        highElevation = Double.fromBits(preferences.getLong(keyHighElevation, 45.0.toRawBits())),
+        wavelogUrl = preferences.getString(keyWavelogUrl, null) ?: "",
+        wavelogApiKey = preferences.getString(keyWavelogApiKey, null) ?: "",
+        wavelogStationId = preferences.getString(keyWavelogStationId, null) ?: "",
+        wavelogAutoUpload = preferences.getBoolean(keyWavelogAutoUpload, false)
     )
     //endregion
 
@@ -390,12 +431,20 @@ class SettingsRepo(
         _dataSourcesSettings.value = settings
     }
 
-    private fun getDataSourcesSettings(): DataSourcesSettings = DataSourcesSettings(
+    private fun getDataSourcesSettings(): DataSourcesSettings {
-        useCustomTLE = preferences.getBoolean(keyUseCustomTle, false),
+        // 4.4.8 fix: legacy example.com placeholder URLs count as unconfigured -> replaced with the real default URL and the switch forced off,
-        useCustomTransceivers = preferences.getBoolean(keyUseCustomTransceivers, false),
+        // otherwise the online All/SatNOGS sources would point at the wrong address and fail to update
-        tleUrl = preferences.getString(keyTleUrl, "https://example.com/tle.txt") ?: "",
+        val storedTleUrl = preferences.getString(keyTleUrl, Sources.defaultTleUrl) ?: Sources.defaultTleUrl
-        transceiversUrl = preferences.getString(keyTransceiversUrl, "https://example.com/radio.json") ?: ""
+        val storedTxUrl = preferences.getString(keyTransceiversUrl, Sources.defaultTransceiversUrl) ?: Sources.defaultTransceiversUrl
+        val tleUrl = if (storedTleUrl == "https://example.com/tle.txt") Sources.defaultTleUrl else storedTleUrl
+        val txUrl = if (storedTxUrl == "https://example.com/radio.json") Sources.defaultTransceiversUrl else storedTxUrl
+        return DataSourcesSettings(
+            useCustomTLE = preferences.getBoolean(keyUseCustomTle, false) && tleUrl != Sources.defaultTleUrl,
+            useCustomTransceivers = preferences.getBoolean(keyUseCustomTransceivers, false) && txUrl != Sources.defaultTransceiversUrl,
+            tleUrl = tleUrl,
+            transceiversUrl = txUrl
         )
+    }
     //endregion
 
     //region # Radio control settings

core/data/src/main/java/com/rtbishop/look4sat/core/data/source/AmSatParser.kt

@@ -0,0 +1,136 @@
+package com.rtbishop.look4sat.core.data.source
+
+import com.rtbishop.look4sat.core.domain.model.SatDay
+import com.rtbishop.look4sat.core.domain.model.SatReport
+import com.rtbishop.look4sat.core.domain.model.SatSlot
+import com.rtbishop.look4sat.core.domain.model.SatStatus
+import com.rtbishop.look4sat.core.domain.model.SatStatusPage
+import java.util.regex.Pattern
+
+/**
+ * AMSAT satellite status page parser (https://amsat.org/status/)
+ *
+ * Page structure (static HTML, verified 2026-08):
+ * - Status table: 48 rows in <table>, header = Name + 6 days (each colspan=12)
+ *   Data row has 73 cells: [0]=satellite name, [1..72] = 6 days x 12 two-hour slots (new->old)
+ *   Each cell: <td width=9 bgcolor="color">count</td>; when reports exist the count carries a
+ *   docTips.show('id') link
+ * - Report details live in the page's inline JS:
+ *   tips.a885153 = new Array(5,5,120,'status<br>callsign<br>grid<br>date<br>time span UTC')
+ *
+ * Status colors: #648fff=active, #ffb000=telemetry only, #dc267f=not heard, #fe6100=conflicting
+ */
+object AmSatParser {
+
+    private val STATUS_COLORS = mapOf(
+        "#648fff" to 0xFF648FFF.toLong(),
+        "#ffb000" to 0xFFFFB000.toLong(),
+        "#dc267f" to 0xFFDC267F.toLong(),
+        "#fe6100" to 0xFFFE6100.toLong()
+    )
+    private val GRAY = 0xFFC0C0C0.toLong()
+
+    private val rowRe = Pattern.compile("<tr>(.*?)</tr>", Pattern.DOTALL)
+    private val cellRe = Pattern.compile("(<t[dh][^>]*>.*?</t[dh]>)", Pattern.DOTALL)
+    private val bgRe = Pattern.compile("bgcolor=\"?(#[0-9a-fA-F]{6}|C0C0C0)\"?")
+    private val linkRe = Pattern.compile("docTips\\.show\\('(a\\d+)'\\)")
+    private val tipRe = Pattern.compile(
+        "tips\\.(a\\d+)\\s*=\\s*new\\s+Array\\(\\s*\\d+,\\s*\\d+,\\s*\\d+,\\s*'([^']*)'"
+    )
+
+    /** Parse the full page */
+    fun parse(html: String, fetchedAtUtcMs: Long): SatStatusPage {
+        val reports = parseReports(html)
+        val statuses = parseStatusTable(html, reports)
+        return SatStatusPage(fetchedAtUtcMs, statuses, reports)
+    }
+
+    /** Extract all reports (tips.* JS arrays) */
+    fun parseReports(html: String): Map<String, SatReport> {
+        val map = mutableMapOf<String, SatReport>()
+        val m = tipRe.matcher(html)
+        while (m.find()) {
+            val id = m.group(1)
+            val parts = m.group(2).split("<br>")
+            map[id] = SatReport(
+                id = id,
+                statusText = parts.getOrElse(0) { "" }.trim(),
+                call = parts.getOrElse(1) { "" }.trim(),
+                grid = parts.getOrElse(2) { "" }.trim(),
+                dateUtc = parts.getOrElse(3) { "" }.trim(),
+                timeUtc = parts.getOrElse(4) { "" }.trim()
+            )
+        }
+        return map
+    }
+
+    /** Parse the status table (48 satellite rows) */
+    fun parseStatusTable(html: String, reports: Map<String, SatReport>): List<SatStatus> {
+        val result = mutableListOf<SatStatus>()
+        val tables = extractTables(html)
+        for (table in tables) {
+            val rows = rowRe.matcher(table)
+            val parsed = mutableListOf<SatStatus>()
+            var rowIndex = 0
+            var dayHeaders: List<String> = emptyList()
+            while (rows.find()) {
+                val rowHtml = rows.group(1)
+                val cells = cellRe.matcher(rowHtml)
+                val cellList = mutableListOf<String>()
+                while (cells.find()) cellList.add(cells.group(1))
+                if (rowIndex == 0) {
+                    // Header: Name + 6 days (each colspan=12)
+                    dayHeaders = cellList.drop(1).take(6).map { stripHtml(it) }
+                    rowIndex++
+                    continue
+                }
+                if (cellList.size < 7) { rowIndex++; continue }
+                val name = stripHtml(cellList[0])
+                if (name.isBlank()) { rowIndex++; continue }
+                val days = mutableListOf<SatDay>()
+                for (d in 0 until 6) {
+                    val start = 1 + d * 12
+                    val end = start + 12
+                    val slots = (start until end).mapNotNull { i ->
+                        cellList.getOrNull(i)?.let { cell ->
+                            val bg = bgRe.matcher(cell)
+                            val color = if (bg.find()) {
+                                STATUS_COLORS[bg.group(1).lowercase()] ?: GRAY
+                            } else GRAY
+                            val link = linkRe.matcher(cell)
+                            val ids = mutableListOf<String>()
+                            while (link.find()) ids.add(link.group(1))
+                            val hasReport = ids.isNotEmpty()
+                            val count = if (hasReport) {
+                                stripHtml(cell).trim().toIntOrNull() ?: ids.size
+                            } else 0
+                            SatSlot(
+                                statusColor = if (hasReport) color else GRAY,
+                                count = count,
+                                reportIds = ids
+                            )
+                        }
+                    }
+                    days.add(SatDay(dayHeaders.getOrElse(d) { "" }, slots))
+                }
+                parsed.add(SatStatus(name, days))
+                rowIndex++
+            }
+            if (parsed.isNotEmpty()) {
+                result.addAll(parsed)
+                break
+            }
+        }
+        return result
+    }
+
+    private fun extractTables(html: String): List<String> {
+        val result = mutableListOf<String>()
+        val m = Pattern.compile("<table.*?</table>", Pattern.DOTALL).matcher(html)
+        while (m.find()) result.add(m.group())
+        return result
+    }
+
+    private fun stripHtml(s: String): String =
+        s.replace(Regex("<[^>]+>"), "").trim()
+}

core/data/src/main/java/com/rtbishop/look4sat/core/data/source/RemoteSource.kt

@@ -43,6 +43,22 @@ class RemoteSource(
         }
     }
 
+    override suspend fun getStatusHtml(): String? = withContext(dispatcher) {
+        try {
+            val request = Request.Builder()
+                .url("https://amsat.org/status/")
+                .header("User-Agent", "Mozilla/5.0 (Linux; Android 13) Look4Sat/4.5")
+                .build()
+            httpClient.newCall(request).execute().use { response ->
+                if (!response.isSuccessful) return@use null
+                response.body?.string()
+            }
+        } catch (exception: Exception) {
+            println("RemoteSource amsat status exception: $exception")
+            null
+        }
+    }
+
     override suspend fun getNetworkStream(url: String): InputStream? = withContext(dispatcher) {
         try {
             val networkRequest = Request.Builder().url(url).build()

core/data/src/main/java/com/rtbishop/look4sat/core/data/usecase/ShowToast.kt

@@ -25,4 +25,8 @@ class ShowToast(private val context: Context) : IShowToast {
     override fun invoke(message: String) {
         Toast.makeText(context, message, Toast.LENGTH_SHORT).show()
     }
+
+    override fun invoke(resId: Int) {
+        invoke(context.getString(resId))
+    }
 }

core/data/src/main/java/com/rtbishop/look4sat/core/data/wavelog/LotwSatellitesRepo.kt

@@ -0,0 +1,62 @@
+/* LotwSatellitesRepo.kt - runtime refresh of the LoTW satellite list (4.5.5).
+ * Downloads ARRL's official config.tq6 (gzip XML), parses <satellite name="...">,
+ * updates the LotwSatellites dynamic set + persists to SharedPreferences (survives restarts).
+ * Trigger: the "Update sats" button in the settings WaveLog section (user decided: manual).
+ */
+package com.rtbishop.look4sat.core.data.wavelog
+
+import android.content.Context
+import com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo
+import com.rtbishop.look4sat.core.domain.wavelog.LotwSatellites
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.net.URL
+import java.util.zip.GZIPInputStream
+import kotlin.random.Random
+
+class LotwSatellitesRepo(private val context: Context) : ILotwSatellitesRepo {
+
+    private val prefs = context.getSharedPreferences("lotw_satellites", Context.MODE_PRIVATE)
+
+    /** Restore the last downloaded list from SharedPreferences (call at process start) */
+    override fun restore() {
+        val saved = prefs.getString(KEY_NAMES, null)
+        if (!saved.isNullOrBlank()) {
+            LotwSatellites.updateNames(saved.split(",").filter { it.isNotBlank() }.toSet())
+        }
+    }
+
+    /** Download config.tq6 -> parse -> update memory + persist. Result is surfaced in the UI */
+    override suspend fun refresh(): ILotwSatellitesRepo.RefreshResult = withContext(Dispatchers.IO) {
+        try {
+            val url = URL("https://lotw.arrl.org/lotw/config.tq6")
+            val conn = url.openConnection()
+            conn.connectTimeout = 10_000
+            conn.readTimeout = 20_000
+            conn.setRequestProperty("User-Agent", "Look4Sat-Pro/4.5.5")
+            val raw = conn.getInputStream()
+            val reader = BufferedReader(InputStreamReader(GZIPInputStream(raw), Charsets.UTF_8))
+            val text = reader.use { it.readText() }
+            // Parse <satellite name="XXX" ...> - fixed format (official ARRL XML)
+            val names = Regex("""<satellite name="([^"]+)""").findAll(text)
+                .map { it.groupValues[1].uppercase() }
+                .toSet()
+            if (names.isEmpty()) return@withContext ILotwSatellitesRepo.RefreshResult.Error("列表为空(响应异常)")
+            LotwSatellites.updateNames(names)
+            prefs.edit()
+                .putString(KEY_NAMES, names.joinToString(","))
+                .putLong(KEY_UPDATED, System.currentTimeMillis())
+                .apply()
+            ILotwSatellitesRepo.RefreshResult.Ok(names.size)
+        } catch (e: Exception) {
+            ILotwSatellitesRepo.RefreshResult.Error(e.message ?: "未知错误")
+        }
+    }
+
+    companion object {
+        private const val KEY_NAMES = "names"
+        private const val KEY_UPDATED = "updated"
+    }
+}

core/data/src/test/java/com/rtbishop/look4sat/core/data/repository/DatabaseRepoTest.kt

@@ -102,7 +102,8 @@ class DatabaseRepoTest {
         repository.updateFromRemote()
 
         assertTrue(localSource.insertedEntries.any { it.catnum == 25544 })
-        assertEquals(listOf(25544), settingsRepo.satelliteTypeIdsByType["Other"])
+        // New semantics: switch on + non-empty URL -> the All source uses the custom URL, data lands in the All type
+        assertEquals(listOf(25544), settingsRepo.satelliteTypeIdsByType["All"])
     }
 
     private fun validCsvStream(): InputStream = """

core/domain/build.gradle.kts

@@ -1,3 +1,8 @@
 plugins {
     alias(libs.plugins.convention.coreDomainPlugin)
 }
+
+dependencies {
+    // 编译期使用 org.json(构造/解析 WaveLog API 请求体); 运行时用 Android 系统自带的 org.json
+    compileOnly("org.json:json:20240303")
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/amsat/AmSatApiClient.kt

@@ -0,0 +1,98 @@
+/* AmSatApiClient.kt - AMSAT official status API v1 client (pure JVM).
+ * Endpoints (verified 2026-08):
+ *   GET https://www.amsat.org/status/api/v1/catalog.php          -> satellite list
+ *   GET https://www.amsat.org/status/api/v1/reports.php?hours=N&limit=500 -> reports
+ * Report fields: id, name ("SO-50_[FM]"), callsign, report, grid_square, reported_time (ISO 8601 UTC).
+ * Status values: Heard / Telemetry Only / Not Heard / Crew Active.
+ */
+package com.rtbishop.look4sat.core.domain.amsat
+
+import org.json.JSONObject
+import org.json.JSONArray
+import java.io.BufferedReader
+import java.net.HttpURLConnection
+import java.net.URL
+
+/** One report from the AMSAT API. */
+data class ApiReport(
+    val id: String,
+    val name: String,        // "SO-50_[FM]" (API name, includes mode suffix)
+    val callsign: String,
+    val report: String,      // Heard / Telemetry Only / Not Heard / Crew Active
+    val gridSquare: String,
+    val reportedTimeUtcSec: Long
+)
+
+/** AMSAT official satellite status API v1 client. */
+class AmSatApiClient(private val baseUrl: String = "https://www.amsat.org/status/api/v1") {
+
+    /** Fetch the full satellite catalog. Returns API names (e.g. "SO-50_[FM]"). */
+    fun fetchCatalog(): List<String> {
+        val body = httpGet("$baseUrl/catalog.php") ?: return emptyList()
+        return try {
+            val arr = JSONObject(body).getJSONArray("data")
+            (0 until arr.length()).map { arr.getJSONObject(it).getString("name") }
+        } catch (e: Exception) {
+            emptyList()
+        }
+    }
+
+    /** Fetch reports for a rolling UTC window. Empty on failure. */
+    fun fetchAllReports(hours: Int = 168): List<ApiReport> {
+        val body = httpGet("$baseUrl/reports.php?hours=$hours&limit=500") ?: return emptyList()
+        return try {
+            val arr = JSONObject(body).getJSONArray("data")
+            (0 until arr.length()).mapNotNull { i ->
+                val o = arr.getJSONObject(i)
+                val iso = o.optString("reported_time", "")
+                if (iso.isEmpty()) null else ApiReport(
+                    id = o.optString("id", ""),
+                    name = o.optString("name", ""),
+                    callsign = o.optString("callsign", ""),
+                    report = o.optString("report", ""),
+                    gridSquare = o.optString("grid_square", ""),
+                    reportedTimeUtcSec = parseIsoUtcSec(iso)
+                )
+            }
+        } catch (e: Exception) {
+            emptyList()
+        }
+    }
+
+    /** Parse "2026-08-05T07:30:00Z" to epoch seconds (minSdk 24: no java.time). */
+    fun parseIsoUtcSec(iso: String): Long {
+        val m = Regex("""(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})""").find(iso) ?: return 0L
+        val (y, mo, d, h, mi, s) = m.destructured
+        val days = daysFromCivil(y.toInt(), mo.toInt(), d.toInt())
+        return days * 86400L + h.toInt() * 3600L + mi.toInt() * 60L + s.toInt()
+    }
+
+    /** Days since 1970-01-01 (civil calendar, proleptic Gregorian). */
+    private fun daysFromCivil(year: Int, month: Int, day: Int): Long {
+        val y = if (month <= 2) year - 1 else year
+        val era = (if (y >= 0) y else y - 399) / 400
+        val yoe = y - era * 400
+        val doy = (153 * (if (month > 2) month - 3 else month + 9) + 2) / 5 + day - 1
+        val doe = yoe * 365 + yoe / 4 - yoe / 100 + doy
+        return era * 146097L + doe - 719468
+    }
+
+    private fun httpGet(url: String): String? {
+        return try {
+            val conn = URL(url).openConnection() as HttpURLConnection
+            conn.requestMethod = "GET"
+            conn.connectTimeout = 15000
+            conn.readTimeout = 20000
+            conn.setRequestProperty("User-Agent", "Look4Sat/4.5.5")
+            if (conn.responseCode !in 200..299) {
+                conn.disconnect()
+                return null
+            }
+            val text = conn.inputStream.bufferedReader().use(BufferedReader::readText)
+            conn.disconnect()
+            text
+        } catch (e: Exception) {
+            null
+        }
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/aprs/AprsPacket.kt

@@ -0,0 +1,116 @@
+package com.rtbishop.look4sat.core.domain.aprs
+
+import kotlin.math.abs
+import kotlin.math.round
+
+/**
+ * APRS-IS protocol core (pure Kotlin, no Android dependencies).
+ * Reverse-ported from APRSdroid 1.6.3d: AprsPacket$.scala + ab0oo Position.java.
+ */
+object AprsPacket {
+
+    /** APRS-IS passcode algorithm (standard): 0x73E2 seed, uppercase callsign + \0, XOR each char pair */
+    fun passcode(callsign: String): Int {
+        val s = callsign.split("-")[0].uppercase() + "\u0000"
+        var hash = 29666 // 0x73E2
+        var i = 0
+        while (i <= s.length - 2) {
+            hash = hash xor (s[i].code * 256 + s[i + 1].code)
+            i += 2
+        }
+        return hash and 0x7FFF
+    }
+
+    /** Login line: user CALL-SSID pass XXXX vers XXXX */
+    fun formatLogin(callsign: String, ssid: String, passcode: Int, version: String): String {
+        val callSsid = formatCallSsid(callsign, ssid)
+        return "user $callSsid pass $passcode vers $version"
+    }
+
+    /** Callsign-SSID join (BG7NTA + 5 -> BG7NTA-5) */
+    fun formatCallSsid(callsign: String, ssid: String): String {
+        if (ssid.isNullOrEmpty()) return callsign
+        return "$callsign-$ssid"
+    }
+
+    /** Optional distance filter: filter r/lat/lon/dist */
+    fun formatRangeFilter(latitude: Double, longitude: Double, distKm: Int): String {
+        return String.format("r/%.3f/%.3f/%d", latitude, longitude, distKm)
+    }
+
+    /** Altitude extension /A=00000 (feet) */
+    fun formatAltitude(altitudeMeters: Double?): String {
+        if (altitudeMeters == null) return ""
+        return String.format("/A=%06d", (altitudeMeters * 3.2808399).toInt())
+    }
+
+    /** Speed/course extension (knots/degrees) */
+    fun formatCourseSpeed(speedMps: Double?, bearing: Float?): String {
+        if (speedMps == null || bearing == null) return ""
+        val knots = (speedMps * 1.94384449).toInt()
+        return String.format("/%03d/%03d", bearing.toInt(), knots)
+    }
+}
+
+/**
+ * APRS position encoding (reverse-ported from ab0oo Position.java).
+ * Uncompressed: DDMM.MMN/DDDMM.MME; compressed: base91.
+ */
+class AprsPosition(
+    val latitude: Double,
+    val longitude: Double,
+    val symbolTable: Char,
+    val symbolCode: Char,
+    val positionAmbiguity: Int = 0
+) {
+
+    /** Uncompressed format (APRS-IS default reporting format) */
+    fun toUncompressedString(): String {
+        val lat = getDMS(latitude, true)
+        val lon = getDMS(longitude, false)
+        return "$lat$symbolTable$lon$symbolCode"
+    }
+
+    /** Compressed format (base91, standard APRS algorithm) */
+    fun toCompressedString(): String {
+        val jRound = round((90.0 - latitude) * 380926.0).toLong()
+        val j = jRound / 753571 + 33
+        val j2 = jRound % 753571
+        val j3 = j2 / 8281 + 33
+        val j4 = j2 % 8281
+        val i = (j4 % 91).toInt() + 33
+        val jRound2 = round((longitude + 180.0) * 190463.0).toLong()
+        val j5 = jRound2 / 753571 + 33
+        val j6 = jRound2 % 753571
+        val j7 = 33 + j6 / 8281
+        val j8 = j6 % 8281
+        return "" + symbolTable + j.toInt().toChar() + j3.toInt().toChar() +
+            ((j4 / 91).toInt() + 33).toChar() + i.toChar() +
+            j5.toInt().toChar() + j7.toInt().toChar() +
+            ((j8 / 91).toInt() + 33).toChar() +
+            ((j8 % 91).toInt() + 33).toChar() + symbolCode
+    }
+
+    /** Single-axis DMS encoding (hundredths) */
+    private fun getDMS(value: Double, isLat: Boolean): String {
+        var iRound = round(value * 6000.0).toInt()
+        if (iRound < 0) iRound = -iRound
+        val degrees = iRound / 6000
+        val minutes = (iRound / 100) % 60
+        val hundredths = iRound % 100
+        val frac = when (positionAmbiguity) {
+            1 -> "  .  "
+            2 -> String.format("%d .  ", minutes / 10)
+            3 -> String.format("%02d.  ", minutes)
+            4 -> String.format("%02d.%d ", minutes, hundredths / 10)
+            else -> String.format("%02d.%02d", minutes, hundredths)
+        }
+        return if (isLat) {
+            val ns = if (value >= 0) 'N' else 'S'
+            String.format("%02d%s%c", degrees, frac, ns)
+        } else {
+            val ew = if (value >= 0) 'E' else 'W'
+            String.format("%03d%s%c", degrees, frac, ew)
+        }
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFftFilt.kt

@@ -0,0 +1,139 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import kotlin.math.PI
+import kotlin.math.abs
+import kotlin.math.cos
+import kotlin.math.sin
+
+/**
+ * FFT lowpass/bandpass filter with overlap-add, ported from fldigi
+ * fftfilt.cxx (fftfilt class). Used by the CW decoder for the
+ * matched receive filter.
+ */
+internal class CwFftFilt(f1: Double, f2: Double, len: Int) {
+    private val flen: Int
+    private val flen2: Int
+    private val fft: CwGfft
+    private val filter: Array<CwComplex>
+    private val timedata: Array<CwComplex>
+    private val freqdata: Array<CwComplex>
+    private val output: Array<CwComplex>
+    private val ovlbuf: Array<CwComplex>
+    private var inptr = 0
+    private var pass = 0
+
+    init {
+        flen = len
+        flen2 = flen shr 1
+        fft = CwGfft(flen)
+        filter = Array(flen) { CwComplex() }
+        timedata = Array(flen) { CwComplex() }
+        freqdata = Array(flen) { CwComplex() }
+        output = Array(flen) { CwComplex() }
+        ovlbuf = Array(flen2) { CwComplex() }
+        createFilter(f1, f2)
+    }
+
+    constructor(f: Double, len: Int) : this(0.0, f, len)
+
+    fun flushSize(): Int = flen - inptr
+
+    /**
+     * f1 < f2 ==> bandpass; f1 > f2 ==> band reject; f1 == 0 ==> lowpass; f2 == 0 ==> highpass.
+     */
+    private fun createFilter(f1: Double, f2: Double) {
+        for (i in 0 until flen) {
+            filter[i] = CwComplex()
+        }
+        val bLowpass = f2 != 0.0
+        val bHighpass = f1 != 0.0
+
+        for (i in 0 until flen2) {
+            var h = 0.0
+            if (bLowpass) h += fsinc(f2, i, flen2)
+            if (bHighpass) h -= fsinc(f1, i, flen2)
+            if (bHighpass && f2 < f1 && i == flen2 / 2) h += 1.0
+            filter[i] = CwComplex(h * blackman(i, flen2), 0.0)
+        }
+
+        // forward FFT of the impulse response
+        fft.forward(filter)
+
+        // normalize unity gain
+        var scale = 0.0
+        for (i in 0 until flen2) {
+            val mag = kotlin.math.sqrt(filter[i].re * filter[i].re + filter[i].im * filter[i].im)
+            if (mag > scale) scale = mag
+        }
+        if (scale != 0.0) {
+            for (i in 0 until flen) {
+                filter[i] = CwComplex(filter[i].re / scale, filter[i].im / scale)
+            }
+        }
+        pass = 1
+    }
+
+    fun createLpf(f: Double) = createFilter(0.0, f)
+
+    private fun fsinc(fc: Double, i: Int, len: Int): Double {
+        val mid = len / 2
+        return if (i == mid) 2.0 * fc
+        else sin(2.0 * PI * fc * (i - mid)) / (PI * (i - mid))
+    }
+
+    private fun blackman(i: Int, len: Int): Double =
+        0.42 - 0.50 * cos(2.0 * PI * i / len) + 0.08 * cos(4.0 * PI * i / len)
+
+    /**
+     * Feed one complex input sample. Returns output array + count when flen/2
+     * samples are ready, otherwise null.
+     */
+    fun run(input: CwComplex): Array<CwComplex>? {
+        timedata[inptr++] = input
+        if (inptr < flen2) return null
+        if (pass > 0) pass--
+
+        // copy to freq domain and FFT
+        for (i in 0 until flen) {
+            freqdata[i] = timedata[i]
+        }
+        fft.forward(freqdata)
+
+        // multiply by filter shape
+        for (i in 0 until flen) {
+            val f = filter[i]
+            val t = freqdata[i]
+            freqdata[i] = CwComplex(t.re * f.re - t.im * f.im, t.re * f.im + t.im * f.re)
+        }
+
+        // inverse FFT
+        fft.inverse(freqdata)
+
+        // overlap-add: first half is valid output, save second half
+        for (i in 0 until flen2) {
+            output[i] = CwComplex(ovlbuf[i].re + freqdata[i].re, ovlbuf[i].im + freqdata[i].im)
+            ovlbuf[i] = freqdata[i + flen2]
+        }
+
+        inptr = 0
+        if (pass > 0) return null
+        return output
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDecoder.kt

@@ -0,0 +1,426 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlin.math.abs
+import kotlin.math.log10
+import kotlin.math.roundToInt
+
+/**
+ * CW decoder ported from fldigi (w1hkj/fldigi) cw.cxx — full receive
+ * chain: NCO down-conversion, FFT lowpass filter, decimation, AGC,
+ * hysteresis keying detection, element timing state machine, adaptive
+ * speed tracking, SOM codebook matching and morse table lookup.
+ *
+ * Drop-in replacement for the reverse-engineered Morse Expert decoder:
+ * same processBuffer(FloatArray) entry point, same StateFlow outputs.
+ */
+class CwFldigiDecoder(
+    val sampleRate: Int = CwFldigiConstants.CW_SAMPLERATE,
+    private val frequency: Double = 600.0,
+    private val useSom: Boolean = true,
+    private val initialWpm: Int = CwFldigiConstants.DEFAULT_SPEED
+) {
+    private companion object {
+        const val CW_DOT = '.'
+        const val CW_DASH = '-'
+        const val CW_RESET = 0
+        const val CW_KEYDOWN = 1
+        const val CW_KEYUP = 2
+        const val CW_QUERY = 3
+        const val CW_SUCCESS = 0
+        const val CW_ERROR = -1
+    }
+
+    private enum class CwRxState { IDLE, IN_TONE, AFTER_TONE }
+
+    // Outputs (API-compatible with the old CwDecoder)
+    private val _decodedTextFlow = MutableStateFlow("")
+    val decodedTextFlow: StateFlow<String> = _decodedTextFlow
+
+    private val _signalStrength = MutableStateFlow(0f)
+    val signalStrength: StateFlow<Float> = _signalStrength
+
+    private val _estimatedPitch = MutableStateFlow<Float?>(frequency.toFloat())
+    val estimatedPitch: StateFlow<Float?> = _estimatedPitch
+
+    private val _estimatedSpeed = MutableStateFlow<Float?>(null)
+    val estimatedSpeed: StateFlow<Float?> = _estimatedSpeed
+
+    // --- fldigi cw state ---
+    private var phaseacc = 0.0
+    private var FFTphase = 0.0
+    private var FFTvalue = 0.0
+    private var smpl_ctr = 0
+
+    private var agc_peak = 1.0
+    private var noise_floor = 1.0
+    private var sig_avg = 0.0
+    private var metric = 0.0
+    private var siglevel = 0.0
+
+    private var upper_threshold = CwFldigiConstants.CW_UPPER_THRESHOLD
+    private var lower_threshold = CwFldigiConstants.CW_LOWER_THRESHOLD
+
+    private val cw_FFT_filter: CwFftFilt
+    private val bitfilter: CwMovAvg
+    private val trackingfilter: CwMovAvg
+
+    private var cw_receive_state = CwRxState.IDLE
+    private var old_cw_receive_state = CwRxState.IDLE
+
+    private var cw_rr_start_timestamp = 0
+    private var cw_rr_end_timestamp = 0
+    private var rx_rep_buf = StringBuilder()
+    private var cw_ptr = 0
+    private val cw_buffer = FloatArray(CwFldigiConstants.MAX_MORSE_ELEMENTS + 1)
+
+    private var cw_speed = initialWpm
+    private var cw_send_speed = initialWpm
+    private var cw_receive_speed = initialWpm
+    private var cw_bandwidth = CwFldigiConstants.DEFAULT_BANDWIDTH
+    private var cwTrack = true
+    private var two_dots = 0L
+    private var last_element = 0
+    private var space_sent = true
+    private var cw_noise_spike_threshold = 0L
+    private var cw_receive_dot_length = 0L
+    private var cw_receive_dash_length = 0L
+
+    private var synchscope = 50
+
+    init {
+        val bw = cw_bandwidth.toDouble() / sampleRate
+        cw_FFT_filter = CwFftFilt(bw, CwFldigiConstants.CW_FFT_SIZE)
+        val bfv = (symbollen() / (2 * CwFldigiConstants.DEC_RATIO)).coerceAtLeast(1)
+        bitfilter = CwMovAvg(bfv)
+        trackingfilter = CwMovAvg(CwFldigiConstants.TRACKING_FILTER_SIZE)
+
+        two_dots = (2 * CwFldigiConstants.KWPM / cw_speed).toLong()
+        cw_noise_spike_threshold = two_dots / 4
+        cw_receive_dot_length = (CwFldigiConstants.KWPM / cw_receive_speed).toLong()
+        cw_receive_dash_length = 3 * cw_receive_dot_length
+    }
+
+    private fun symbollen(): Int =
+        (sampleRate * 1.2 / cw_speed).roundToInt()
+
+    private fun usecDiff(earlier: Int, later: Int): Int =
+        if (earlier >= later) 0 else later - earlier
+
+    /** Main entry: feed PCM samples. */
+    fun processBuffer(buffer: FloatArray) {
+        for (sample in buffer) {
+            rxSample(sample.toDouble())
+        }
+    }
+
+    private fun rxSample(value: Double) {
+        // NCO down-conversion (fldigi rx_FFTprocess)
+        val z = CwComplex(
+            value * kotlin.math.cos(FFTphase),
+            value * kotlin.math.sin(FFTphase)
+        )
+        FFTphase += 2.0 * Math.PI * frequency / sampleRate
+        if (FFTphase > 2.0 * Math.PI) FFTphase -= 2.0 * Math.PI
+
+        val out = cw_FFT_filter.run(z) ?: return
+        for (i in 0 until CwFldigiConstants.CW_FFT_SIZE / 2) {
+            ++smpl_ctr
+            if (smpl_ctr % CwFldigiConstants.DEC_RATIO != 0) continue
+            FFTvalue = out[i].abs()
+            FFTvalue = bitfilter.run(FFTvalue)
+            decodeStream(FFTvalue)
+        }
+    }
+
+    /**
+     * AGC + hysteresis detection (fldigi cw::decode_stream).
+     */
+    private fun decodeStream(value: Double) {
+        var v = value
+        val attack: Int
+        val decay: Int
+        when (CwFldigiConstants.CWRX_ATTACK_DEFAULT) {
+            0 -> attack = 400
+            2 -> attack = 100
+            else -> attack = 200
+        }
+        when (CwFldigiConstants.CWRX_DECAY_DEFAULT) {
+            0 -> decay = 2000
+            2 -> decay = 500
+            else -> decay = 1000
+        }
+
+        sig_avg = decayAvg(sig_avg, v, decay)
+
+        if (v < sig_avg) {
+            noise_floor = if (v < noise_floor) decayAvg(noise_floor, v, attack)
+            else decayAvg(noise_floor, v, decay)
+        }
+        if (v > sig_avg) {
+            agc_peak = if (v > agc_peak) decayAvg(agc_peak, v, attack)
+            else decayAvg(agc_peak, v, decay)
+        }
+
+        val normNoise = noise_floor / agc_peak
+        val normSig = sig_avg / agc_peak
+        siglevel = normSig
+
+        if (agc_peak != 0.0) v /= agc_peak else v = 0.0
+
+        metric = 0.8 * metric
+        if ((noise_floor > 1e-4) && (noise_floor < sig_avg)) {
+            val db = 20.0 * log10(sig_avg / noise_floor)
+            metric += 0.2 * clamp(2.5 * db, 0.0, 100.0)
+        }
+
+        val diff = normSig - normNoise
+        upper_threshold = normSig - 0.2 * diff
+        lower_threshold = normNoise + 0.7 * diff
+
+        // Squelch gate (fldigi: !progStatus.sqlonoff || metric > sldrSquelchValue).
+        // Default sqlonoff=true, sldrSquelchValue=5.0. Without this gate, noise
+        // spikes false-trigger KEYDOWN and lock the state machine in IN_TONE.
+        if (sqlonoff && metric <= squelchValue) return
+
+        // Power detection using hysteresis
+        if ((v > upper_threshold) && (cw_receive_state != CwRxState.IN_TONE)) {
+            handleEvent(CW_KEYDOWN)
+        }
+        if ((v < lower_threshold) && (cw_receive_state == CwRxState.IN_TONE)) {
+            handleEvent(CW_KEYUP)
+        }
+
+        if (handleEvent(CW_QUERY) == CW_SUCCESS) {
+            synchscope = 100
+            // emit decoded char(s)
+        } else if (--synchscope == 0) {
+            synchscope = 25
+        }
+    }
+
+    private var sqlonoff = true
+    private var squelchValue = 5.0
+
+    private fun decayAvg(avg: Double, value: Double, timeConst: Int): Double =
+        avg + (value - avg) / timeConst
+
+    private fun clamp(v: Double, lo: Double, hi: Double): Double =
+        if (v < lo) lo else if (v > hi) hi else v
+
+    private fun handleEvent(event: Int): Int {
+        val sc = StringBuilder()
+        var elementUsec: Int
+        when (event) {
+            CW_RESET -> {
+                syncParameters()
+                cw_receive_state = CwRxState.IDLE
+                cw_ptr = 0
+                smpl_ctr = 0
+                rx_rep_buf.clear()
+            }
+            CW_KEYDOWN -> {
+                if (cw_receive_state == CwRxState.IN_TONE) return CW_ERROR
+                if (cw_receive_state == CwRxState.IDLE) {
+                    smpl_ctr = 0
+                    rx_rep_buf.clear()
+                    cw_ptr = 0
+                }
+                cw_rr_start_timestamp = smpl_ctr
+                old_cw_receive_state = cw_receive_state
+                cw_receive_state = CwRxState.IN_TONE
+                return CW_ERROR
+            }
+            CW_KEYUP -> {
+                if (cw_receive_state != CwRxState.IN_TONE) return CW_ERROR
+                cw_rr_end_timestamp = smpl_ctr
+                elementUsec = usecDiff(cw_rr_start_timestamp, cw_rr_end_timestamp)
+                syncParameters()
+                if (cw_noise_spike_threshold > 0 && elementUsec < cw_noise_spike_threshold) {
+                    cw_receive_state = CwRxState.IDLE
+                    return CW_ERROR
+                }
+
+                // adaptive speed tracking on dot-dash / dash-dot pairs
+                if (last_element > 0) {
+                    if ((elementUsec > 2 * last_element) && (elementUsec < 4 * last_element)) {
+                        updateTracking(last_element, elementUsec)
+                    }
+                    if ((last_element > 2 * elementUsec) && (last_element < 4 * elementUsec)) {
+                        updateTracking(elementUsec, last_element)
+                    }
+                }
+                last_element = elementUsec
+
+                if (elementUsec <= two_dots) {
+                    rx_rep_buf.append(CW_DOT)
+                    cw_buffer[cw_ptr++] = last_element.toFloat()
+                } else {
+                    rx_rep_buf.append(CW_DASH)
+                    cw_buffer[cw_ptr++] = last_element.toFloat()
+                }
+
+                if (rx_rep_buf.length > CwFldigiConstants.MAX_MORSE_ELEMENTS) {
+                    cw_receive_state = CwRxState.IDLE
+                    cw_ptr = 0
+                    smpl_ctr = 0
+                    return CW_ERROR
+                } else {
+                    if (cw_ptr < cw_buffer.size) cw_buffer[cw_ptr] = 0.0f
+                }
+                cw_receive_state = CwRxState.AFTER_TONE
+                return CW_ERROR
+            }
+            CW_QUERY -> {
+                if (cw_receive_state == CwRxState.IN_TONE) return CW_ERROR
+                syncParameters()
+                elementUsec = usecDiff(cw_rr_end_timestamp, smpl_ctr)
+                if (elementUsec < (2 * cw_receive_dot_length)) return CW_ERROR
+
+                if (elementUsec >= (2 * cw_receive_dot_length) &&
+                    elementUsec <= (4 * cw_receive_dot_length) &&
+                    cw_receive_state == CwRxState.AFTER_TONE
+                ) {
+                    val pattern = rx_rep_buf.toString()
+                    val decoded = if (useSom) {
+                        findWinner(cw_buffer, two_dots)
+                    } else {
+                        MorseTable.rxLookup(pattern)
+                    }
+                    if (decoded.isNotEmpty()) {
+                        appendDecoded(decoded)
+                    }
+                    rx_rep_buf.clear()
+                    cw_receive_state = CwRxState.IDLE
+                    space_sent = false
+                    cw_ptr = 0
+                    return CW_SUCCESS
+                }
+
+                if ((elementUsec > (4 * cw_receive_dot_length)) && !space_sent) {
+                    appendDecoded(" ")
+                    space_sent = true
+                    return CW_SUCCESS
+                }
+                return CW_ERROR
+            }
+        }
+        return CW_ERROR
+    }
+
+    private fun appendDecoded(text: String) {
+        val current = _decodedTextFlow.value
+        _decodedTextFlow.value = if (current.length > 2000) {
+            current.drop(current.length - 1500) + text
+        } else {
+            current + text
+        }
+        _signalStrength.value = metric.toFloat() / 100f
+        _estimatedSpeed.value = (CwFldigiConstants.KWPM.toDouble() / (two_dots / 2.0)).toFloat()
+    }
+
+    private fun syncParameters() {
+        if (cwTrack) {
+            cw_receive_speed = (CwFldigiConstants.KWPM / (two_dots / 2)).toInt()
+        } else {
+            cw_receive_speed = cw_send_speed
+            two_dots = 2 * (CwFldigiConstants.KWPM / cw_send_speed).toLong()
+        }
+
+        if (cw_receive_speed > 0) {
+            cw_receive_dot_length = (CwFldigiConstants.KWPM / cw_receive_speed).toLong()
+        } else {
+            cw_receive_dot_length = (CwFldigiConstants.KWPM / 5).toLong()
+        }
+        cw_receive_dash_length = 3 * cw_receive_dot_length
+        cw_noise_spike_threshold = cw_receive_dot_length / 2
+    }
+
+    private fun updateTracking(dur1: Int, dur2: Int) {
+        val minDot = CwFldigiConstants.KWPM / 200
+        val maxDash = 3 * CwFldigiConstants.KWPM / 5
+        if ((dur1 > dur2) && (dur1 > 4 * dur2)) return
+        if ((dur2 > dur1) && (dur2 > 4 * dur1)) return
+        if (dur1 < minDot || dur2 < minDot) return
+        if (dur2 > maxDash || dur2 > maxDash) return
+
+        two_dots = trackingfilter.run(((dur1 + dur2) / 2).toDouble()).toLong()
+        syncParameters()
+    }
+
+    /**
+     * SOM codebook matching (fldigi cw::find_winner + normalize).
+     */
+    private fun findWinner(inbuf: FloatArray, twodots: Long): String {
+        if (normalize(inbuf, twodots) == 0) return " "
+
+        var winner = -1
+        var bestDiff = Double.MAX_VALUE
+        for ((idx, entry) in SomTable.table.withIndex()) {
+            var difference = 0.0
+            for (i in 0 until CwFldigiConstants.WGT_SIZE) {
+                val diff = inbuf[i] - entry.weights[i]
+                difference += diff * diff
+                if (difference > bestDiff) break
+            }
+            if (difference < bestDiff) {
+                winner = idx
+                bestDiff = difference
+            }
+        }
+
+        if (winner >= 0 && SomTable.table[winner].pattern.isNotEmpty()) {
+            val sc = MorseTable.rxLookup(SomTable.table[winner].pattern)
+            return if (sc.isNotEmpty()) sc else CwFldigiConstants.DEFAULT_NOISE_CHAR.toString()
+        }
+        return CwFldigiConstants.DEFAULT_NOISE_CHAR.toString()
+    }
+
+    private fun normalize(v: FloatArray, twodots: Long): Int {
+        var max = v[0]
+        var min = v[0]
+        for (j in 1 until CwFldigiConstants.WGT_SIZE) {
+            if (v[j] > max) max = v[j]
+            else if (v[j] < min) min = v[j]
+        }
+        if (max == 0.0f) return 0
+
+        val ratio = if (max > twodots) 1.0f else 0.33f
+        val scale = ratio / max
+        for (j in 0 until CwFldigiConstants.WGT_SIZE) v[j] *= scale
+        return 1
+    }
+
+    /** Reset the decoder state (fldigi cw::rx_init + reset). */
+    fun resetDecoder() {
+        cw_receive_state = CwRxState.IDLE
+        smpl_ctr = 0
+        cw_ptr = 0
+        rx_rep_buf.clear()
+        last_element = 0
+        space_sent = true
+        _decodedTextFlow.value = ""
+        _signalStrength.value = 0f
+        _estimatedSpeed.value = null
+        FFTphase = 0.0
+        phaseacc = 0.0
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDsp.kt

@@ -0,0 +1,183 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Constants and primitives ported from fldigi (w1hkj/fldigi),
+ * GPL v3, cw.h / cw.cxx / filters.cxx / fftfilt.cxx.
+ *
+ * Faithful port: identifiers and formulas mirror the C++ original so
+ * behaviour matches the desktop decoder bit-for-bit.
+ */
+internal object CwFldigiConstants {
+    const val CW_SAMPLERATE = 8000
+    const val DEC_RATIO = 16
+    const val CW_FFT_SIZE = 2048 // must be power of 2
+    const val MAX_MORSE_ELEMENTS = 6
+    const val WGT_SIZE = 7
+    const val TRACKING_FILTER_SIZE = 16
+    const val MAX_PIPE_SIZE = (22 * CW_SAMPLERATE * 12 / 800)
+    const val CLRCOUNT = 16
+    const val CW_MAX_SPEED = 50
+    const val INITIAL_SEND_SPEED = 18
+    const val INITIAL_RECEIVE_SPEED = 18
+
+    /** # samples in a dot: KWPM / WPM. fldigi: KWPM = 12 * samplerate / 10 */
+    const val KWPM = 12 * CW_SAMPLERATE / 10
+
+    const val CW_SUCCESS = 0
+    const val CW_ERROR = -1
+
+    // Defaults mirroring fldigi progdefaults
+    const val DEFAULT_SPEED = 18 // WPM
+    const val DEFAULT_BANDWIDTH = 150 // Hz
+    const val DEFAULT_RANGE = 10 // WPM tracking range
+    const val LOWER_LIMIT = 5 // WPM
+    const val UPPER_LIMIT = 50 // WPM
+    const val DEFAULT_NOISE_CHAR = '*'
+    const val CWRX_ATTACK_DEFAULT = 1 // medium
+    const val CWRX_DECAY_DEFAULT = 1 // medium
+    const val CW_LOWER_THRESHOLD = 0.4
+    const val CW_UPPER_THRESHOLD = 0.6
+}
+
+/**
+ * Moving average filter, ported from fldigi Cmovavg (filters.cxx).
+ */
+internal class CwMovAvg(private var len: Int) {
+    private val buf = DoubleArray(MAX_MOVAVG)
+    private var out = 0.0
+    private var pint = 0
+    private var empty = true
+
+    fun run(a: Double): Double {
+        if (empty) {
+            empty = false
+            out = 0.0
+            for (i in 0 until len) {
+                buf[i] = a
+                out += a
+            }
+            pint = 0
+            return a
+        }
+        out = out - buf[pint] + a
+        buf[pint] = a
+        if (++pint >= len) pint = 0
+        return out / len
+    }
+
+    fun setLength(newLen: Int) {
+        len = newLen.coerceAtMost(MAX_MOVAVG).coerceAtLeast(1)
+        empty = true
+    }
+
+    fun reset() {
+        empty = true
+    }
+
+    fun value(): Double = if (len > 0) out / len else 0.0
+
+    private companion object {
+        const val MAX_MOVAVG = 2048
+    }
+}
+
+/**
+ * Complex sample used by the FFT filter chain.
+ */
+internal data class CwComplex(var re: Double = 0.0, var im: Double = 0.0) {
+    operator fun timesAssign(other: CwComplex) {
+        val r = re * other.re - im * other.im
+        val i = re * other.im + im * other.re
+        re = r; im = i
+    }
+
+    fun abs(): Double = kotlin.math.sqrt(re * re + im * im)
+}
+
+/**
+ * In-place radix-2 complex FFT, ported from fldigi gfft.h semantics
+ * (ComplexFFT / InverseComplexFFT, forward = -1).
+ */
+internal class CwGfft(private val n: Int) {
+    init {
+        require(n > 0 && n and (n - 1) == 0) { "FFT size must be power of 2, got $n" }
+    }
+
+    private val rev = IntArray(n)
+
+    init {
+        val log2n = Integer.numberOfTrailingZeros(n)
+        for (i in 0 until n) {
+            var r = 0
+            var x = i
+            for (bit in 0 until log2n) {
+                r = (r shl 1) or (x and 1)
+                x = x shr 1
+            }
+            rev[i] = r
+        }
+    }
+
+    /**
+     * In-place complex FFT.
+     * @param data array of CwComplex, size n
+     * @param inverse if true, performs inverse transform (no 1/n scaling; caller divides)
+     */
+    fun transform(data: Array<CwComplex>, inverse: Boolean) {
+        val sign = if (inverse) 1 else -1
+
+        // bit reversal permutation
+        for (i in 0 until n) {
+            val j = rev[i]
+            if (j > i) {
+                val t = data[i]; data[i] = data[j]; data[j] = t
+            }
+        }
+
+        var len = 2
+        while (len <= n) {
+            val ang = sign * 2.0 * Math.PI / len
+            val wRe = Math.cos(ang)
+            val wIm = Math.sin(ang)
+            var i = 0
+            while (i < n) {
+                var curRe = 1.0
+                var curIm = 0.0
+                for (j in 0 until len / 2) {
+                    val u = data[i + j]
+                    val v = data[i + j + len / 2]
+                    val tRe = curRe * v.re - curIm * v.im
+                    val tIm = curRe * v.im + curIm * v.re
+                    data[i + j] = CwComplex(u.re + tRe, u.im + tIm)
+                    data[i + j + len / 2] = CwComplex(u.re - tRe, u.im - tIm)
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+    }
+
+    fun forward(data: Array<CwComplex>) = transform(data, false)
+
+    fun inverse(data: Array<CwComplex>) = transform(data, true)
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/MorseTable.kt

@@ -0,0 +1,140 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Morse code lookup table, ported from fldigi morse.cxx (cMorse::cw_table).
+ * Each entry: [enabled, displayChar, prosignDisplay, dotDashPattern].
+ */
+internal object MorseTable {
+
+    private data class Entry(
+        val enabled: Boolean,
+        val chr: String,
+        val prt: String,
+        val rpr: String
+    )
+
+    private val table = listOf(
+        // Prosigns
+        Entry(true, "=", "<BT>", "-...-"),
+        Entry(false, "~", "<AA>", ".-.-"),
+        Entry(true, "<", "<AS>", ".-..."),
+        Entry(true, ">", "<AR>", ".-.-."),
+        Entry(true, "%", "<SK>", "...-.-"),
+        Entry(true, "+", "<KN>", "-.--."),
+        Entry(true, "&", "<INT>", "..-.-"),
+        Entry(true, "{", "<HM>", "....--"),
+        Entry(true, "}", "<VE>", "...-."),
+        // ASCII 7-bit letters
+        Entry(true, "A", "A", ".-"),
+        Entry(true, "B", "B", "-..."),
+        Entry(true, "C", "C", "-.-."),
+        Entry(true, "D", "D", "-.."),
+        Entry(true, "E", "E", "."),
+        Entry(true, "F", "F", "..-."),
+        Entry(true, "G", "G", "--."),
+        Entry(true, "H", "H", "...."),
+        Entry(true, "I", "I", ".."),
+        Entry(true, "J", "J", ".---"),
+        Entry(true, "K", "K", "-.-"),
+        Entry(true, "L", "L", ".-.."),
+        Entry(true, "M", "M", "--"),
+        Entry(true, "N", "N", "-."),
+        Entry(true, "O", "O", "---"),
+        Entry(true, "P", "P", ".--."),
+        Entry(true, "Q", "Q", "--.-"),
+        Entry(true, "R", "R", ".-."),
+        Entry(true, "S", "S", "..."),
+        Entry(true, "T", "T", "-"),
+        Entry(true, "U", "U", "..-"),
+        Entry(true, "V", "V", "...-"),
+        Entry(true, "W", "W", ".--"),
+        Entry(true, "X", "X", "-..-"),
+        Entry(true, "Y", "Y", "-.--"),
+        Entry(true, "Z", "Z", "--.."),
+        // lowercase map to uppercase
+        Entry(true, "a", "A", ".-"), Entry(true, "b", "B", "-..."),
+        Entry(true, "c", "C", "-.-."), Entry(true, "d", "D", "-.."),
+        Entry(true, "e", "E", "."), Entry(true, "f", "F", "..-."),
+        Entry(true, "g", "G", "--."), Entry(true, "h", "H", "...."),
+        Entry(true, "i", "I", ".."), Entry(true, "j", "J", ".---"),
+        Entry(true, "k", "K", "-.-"), Entry(true, "l", "L", ".-.."),
+        Entry(true, "m", "M", "--"), Entry(true, "n", "N", "-."),
+        Entry(true, "o", "O", "---"), Entry(true, "p", "P", ".--."),
+        Entry(true, "q", "Q", "--.-"), Entry(true, "r", "R", ".-."),
+        Entry(true, "s", "S", "..."), Entry(true, "t", "T", "-"),
+        Entry(true, "u", "U", "..-"), Entry(true, "v", "V", "...-"),
+        Entry(true, "w", "W", ".--"), Entry(true, "x", "X", "-..-"),
+        Entry(true, "y", "Y", "-.--"), Entry(true, "z", "Z", "--.."),
+        // Numerals
+        Entry(true, "0", "0", "-----"),
+        Entry(true, "1", "1", ".----"),
+        Entry(true, "2", "2", "..---"),
+        Entry(true, "3", "3", "...--"),
+        Entry(true, "4", "4", "....-"),
+        Entry(true, "5", "5", "....."),
+        Entry(true, "6", "6", "-...."),
+        Entry(true, "7", "7", "--..."),
+        Entry(true, "8", "8", "---.."),
+        Entry(true, "9", "9", "----."),
+        // Punctuation
+        Entry(true, "\\", "\\", ".-..-."),
+        Entry(true, "'", "'", ".----."),
+        Entry(true, "$", "$", "...-..-"),
+        Entry(true, "(", "(", "-.--."),
+        Entry(true, ")", ")", "-.--.-"),
+        Entry(true, ",", ",", "--..--"),
+        Entry(true, "-", "-", "-....-"),
+        Entry(true, ".", ".", ".-.-.-"),
+        Entry(true, "/", "/", "-..-."),
+        Entry(true, ":", ":", "---..."),
+        Entry(true, ";", ";", "-.-.-."),
+        Entry(true, "?", "?", "..--.."),
+        Entry(true, "_", "_", "..--.-"),
+        Entry(true, "@", "@", ".--.-."),
+        Entry(true, "!", "!", "-.-.--"),
+        // Accented (disabled by default in fldigi)
+        Entry(false, "Ä", "Ä", ".-.-"), Entry(false, "ä", "Ä", ".-.-"),
+        Entry(false, "Æ", "Æ", ".-.-"), Entry(false, "æ", "Æ", ".-.-"),
+        Entry(false, "Å", "Å", ".--.-"), Entry(false, "å", "Å", ".--.-"),
+        Entry(false, "Ç", "Ç", "-.-.."), Entry(false, "ç", "Ç", "-.-.."),
+        Entry(false, "È", "È", ".-..-"), Entry(false, "è", "È", ".-..-"),
+        Entry(false, "É", "É", "..-.."), Entry(false, "é", "É", "..-.."),
+        Entry(false, "Ó", "Ó", "---."), Entry(false, "ó", "Ó", "---."),
+        Entry(false, "Ö", "Ö", "---."), Entry(false, "ö", "Ö", "---."),
+        Entry(false, "Ø", "Ø", "---."), Entry(false, "ø", "Ø", "---."),
+        Entry(false, "Ñ", "Ñ", "--.--"), Entry(false, "ñ", "Ñ", "--.--"),
+        Entry(false, "Ü", "Ü", "..--"), Entry(false, "ü", "Ü", "..--"),
+        Entry(false, "Û", "Û", "..--"), Entry(false, "û", "Û", "..--")
+    )
+
+    /**
+     * Look up the display representation of a dot-dash pattern.
+     * Returns "" when the pattern is not in the table or is disabled.
+     * Mirror of cMorse::rx_lookup.
+     */
+    fun rxLookup(pattern: String): String {
+        for (e in table) {
+            if (pattern == e.rpr) {
+                if (e.enabled) return e.prt
+            }
+        }
+        return ""
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/SomTable.kt

@@ -0,0 +1,104 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Self-Organizing Map codebook for CW character matching, ported from
+ * fldigi cw.cxx (cw::som_table). Each row is a dot/dash weight vector
+ * (0 = element absent, 0.33 = dot, 1.0 = dash).
+ */
+internal object SomTable {
+
+    data class SomEntry(val pattern: String, val weights: FloatArray)
+
+    val table: List<SomEntry> = listOf(
+        // Prosigns
+        SomEntry("-...-", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry(".-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".-...", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry(".-.-.", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("...-.-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("-.--.", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("..-.-", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry("....--", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 1.0f, 0f)),
+        SomEntry("...-.", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        // ASCII 7-bit letters
+        SomEntry(".-", floatArrayOf(0.33f, 1.0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-...", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("-.-.", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("-..", floatArrayOf(1.0f, 0.33f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry(".", floatArrayOf(0.33f, 0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("..-.", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--.", floatArrayOf(1.0f, 1.0f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("....", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("..", floatArrayOf(0.33f, 0.33f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".---", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("-.-", floatArrayOf(1.0f, 0.33f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".-..", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--", floatArrayOf(1.0f, 1.0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-.", floatArrayOf(1.0f, 0.33f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("---", floatArrayOf(1.0f, 1.0f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".--.", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--.-", floatArrayOf(1.0f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".-.", floatArrayOf(0.33f, 1.0f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("...", floatArrayOf(0.33f, 0.33f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("-", floatArrayOf(1.0f, 0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("..-", floatArrayOf(0.33f, 0.33f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry("...-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".--", floatArrayOf(0.33f, 1.0f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-..-", floatArrayOf(1.0f, 0.33f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("-.--", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("--..", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        // Numerals
+        SomEntry("-----", floatArrayOf(1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry(".----", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("..---", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("...--", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("....-", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry(".....", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("-....", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("--...", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("---..", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("----.", floatArrayOf(1.0f, 1.0f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        // Punctuation
+        SomEntry(".-..-.", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry(".----.", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 1.0f, 0.33f, 0f)),
+        SomEntry("...-..-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 0.33f, 1.0f)),
+        SomEntry("-.---.", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("-.--.-", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("--..--", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 1.0f, 1.0f, 0f)),
+        SomEntry("-....-", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 0f)),
+        SomEntry(".-.-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("-..-.", floatArrayOf(1.0f, 0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("---...", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0.33f, 0.33f, 0f)),
+        SomEntry("-.-.-.", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry("..--..", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0.33f, 0.33f, 0f)),
+        SomEntry("..--.-", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry(".--.-.", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry("-.-.--", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 1.0f, 0f)),
+        // Accented
+        SomEntry(".-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)), // A umlaut, A aelig
+        SomEntry(".--.-", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f, 0f)), // A ring
+        SomEntry("-.-..", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f)), // C cedilla
+        SomEntry(".-..-", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 1.0f, 0f, 0f)), // E grave
+        SomEntry("..-..", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f)), // E acute
+        SomEntry("---.", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0f, 0f, 0f)), // O acute, O umlaut, O slash
+        SomEntry("--.--", floatArrayOf(1.0f, 1.0f, 0.33f, 1.0f, 1.0f, 0f, 0f)), // N tilde
+        SomEntry("..--", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0f, 0f, 0f)) // U umlaut, U circ
+    )
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/SatStatus.kt

@@ -0,0 +1,37 @@
+package com.rtbishop.look4sat.core.domain.model
+
+/** One satellite status report (AMSAT site tooltip data) */
+data class SatReport(
+    val id: String,          // 报告 ID(a885153)
+    val statusText: String,  // Heard / Telemetry Only / Not Heard ...
+    val call: String,        // 呼号
+    val grid: String,        // 网格坐标(可为空)
+    val dateUtc: String,     // 2026-08-04
+    val timeUtc: String      // 2:46-:59 UTC
+)
+
+/** State of one 2-hour slot */
+data class SatSlot(
+    val statusColor: Long,   // ARGB 状态色(-1 = 无报告)
+    val count: Int,          // 报告数量(0 = 无)
+    val reportIds: List<String> = emptyList() // 该槽报告 ID 列表
+)
+
+/** One satellite day (12 two-hour slots) */
+data class SatDay(
+    val dateLabel: String,   // "Aug 4"
+    val slots: List<SatSlot> // 12 槽(00-02 ... 22-24)
+)
+
+/** One satellite, 6 days of state */
+data class SatStatus(
+    val name: String,        // "AO-123_[FM]"
+    val days: List<SatDay>   // 6 天(新→旧)
+)
+
+/** Overall page parse result */
+data class SatStatusPage(
+    val fetchedAtUtcMs: Long,
+    val statuses: List<SatStatus>,
+    val reports: Map<String, SatReport> // id → 报告
+)

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/Settings.kt

@@ -62,7 +62,18 @@ data class OtherSettings(
     val shouldSeeWhatsNew: Boolean,
     val sstvMode: String = "Auto",
     val lowElevation: Double = 15.0,
-    val highElevation: Double = 45.0
+    val highElevation: Double = 45.0,
+    // UI settings: pages hidden from the bottom nav (Screen simpleName list; empty default = all shown)
+    val hiddenScreens: List<String> = emptyList(),
+    // UI settings: page order (empty = default: Satellites/Passes/Radar/Map/Settings)
+    val screenOrder: List<String> = emptyList(),
+    // UI settings: More-menu order (empty = default: Mutual/Roaming/CW decode)
+    val subMenuOrder: List<String> = emptyList(),
+    // WaveLog logging (4.5.2): server config
+    val wavelogUrl: String = "",
+    val wavelogApiKey: String = "",
+    val wavelogStationId: String = "",
+    val wavelogAutoUpload: Boolean = false
 )
 
 data class DataSourcesSettings(

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/qrz/QrzGridClient.kt

@@ -0,0 +1,71 @@
+/* QrzGridClient.kt - QRZ callsign grid scraper (4.5.5, pure JVM in domain).
+ * How it works (verified): GET https://www.qrz.com/db/{callsign} with the user's QRZ login Cookie,
+ * the Detail table on the page holds <td class="dh">Grid Square</td><td class="di">XXX</td>.
+ * Without cookies the Detail is unavailable (confirmed); if the other station has no grid, the row is absent (null).
+ * The Cookie is pasted by the user in settings (EditThisCookie JSON export or a raw cookie string),
+ * never built into the app.
+ */
+package com.rtbishop.look4sat.core.domain.qrz
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.net.URL
+
+object QrzGridClient {
+
+    /** Parse the pasted Cookie (both formats): EditThisCookie JSON array or raw "k=v; k=v" string */
+    fun parseCookies(raw: String): String {
+        val text = raw.trim()
+        if (text.isEmpty()) return ""
+        // JSON array format: [{"name":"qz_userid","value":"1266043",...}, ...]
+        if (text.startsWith("[")) {
+            return try {
+                val arr = org.json.JSONArray(text)
+                val parts = mutableListOf<String>()
+                for (i in 0 until arr.length()) {
+                    val o = arr.getJSONObject(i)
+                    val name = o.optString("name")
+                    val value = o.optString("value")
+                    if (name.isNotBlank()) parts.add("$name=$value")
+                }
+                parts.joinToString("; ")
+            } catch (_: Exception) { text }
+        }
+        return text
+    }
+
+    /** Detect the callsign logged in with these cookies (fetch db home, extract the account menu callsign). Null on failure */
+    suspend fun fetchOwnCallsign(cookieHeader: String): String? = withContext(Dispatchers.IO) {
+        if (cookieHeader.isBlank()) return@withContext null
+        try {
+            val url = URL("https://www.qrz.com/db/")
+            val conn = url.openConnection()
+            conn.connectTimeout = 10_000
+            conn.readTimeout = 20_000
+            conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Linux; Android 13) Look4Sat-Pro")
+            conn.setRequestProperty("Cookie", cookieHeader)
+            val html = conn.getInputStream().bufferedReader().use { it.readText() }
+            // Logged-in account menu (verified): <li class="leaf last" onclick="return true">BG7NTA <ul class="sub">
+            val pattern = Regex("<li class=\"leaf last\"[^>]*>\\s*([A-Z0-9/]+)\\s*<ul")
+            pattern.find(html)?.groupValues?.get(1)?.trim()
+        } catch (_: Exception) { null }
+    }
+
+    /** Look up a callsign's grid. Null = not set / not found (silent, does not block logging) */
+    suspend fun lookupGrid(callsign: String, cookieHeader: String): String? = withContext(Dispatchers.IO) {
+        if (callsign.isBlank() || cookieHeader.isBlank()) return@withContext null
+        try {
+            val url = URL("https://www.qrz.com/db/${callsign.trim().uppercase()}")
+            val conn = url.openConnection()
+            conn.connectTimeout = 10_000
+            conn.readTimeout = 20_000
+            conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Linux; Android 13) Look4Sat-Pro")
+            conn.setRequestProperty("Cookie", cookieHeader)
+            val html = conn.getInputStream().bufferedReader().use { it.readText() }
+            // Detail table Grid Square row (verified format)
+            val m = Regex("""<td class="dh">Grid Square</td><td class="di">([^<]+)</td>""")
+                .find(html)
+            m?.groupValues?.get(1)?.trim()?.takeIf { it.isNotBlank() }
+        } catch (_: Exception) { null }
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/repository/IAmSatRepository.kt

@@ -0,0 +1,9 @@
+package com.rtbishop.look4sat.core.domain.repository
+
+import com.rtbishop.look4sat.core.domain.model.SatStatusPage
+
+/** AMSAT satellite status data source */
+interface IAmSatRepository {
+    /** Fetch and parse the AMSAT status page; null on failure */
+    suspend fun fetchStatus(): SatStatusPage?
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/repository/IMainContainer.kt

@@ -30,6 +30,7 @@ interface IMainContainer {
     val selectionRepo: ISelectionRepo
     val satelliteRepo: ISatelliteRepo
     val databaseRepo: IDatabaseRepo
+  val amSatRepo: IAmSatRepository
     val radioTrackingService: IRadioTrackingService
     val mutualPassData: StateFlow<MutualPassData>
     fun setMutualPassData(data: MutualPassData)
@@ -42,6 +43,11 @@ interface IMainContainer {
     fun provideRxRadioController(): IRadioController
     fun provideAudioCapture(): IAudioCapture
     fun provideSaveImage(): ISaveImage
+    // WaveLog logging (4.5.2)
+    val wavelogQueue: com.rtbishop.look4sat.core.domain.wavelog.WavelogQueue
+    fun provideWavelogUploader(): com.rtbishop.look4sat.core.domain.wavelog.WavelogUploader
+
+    fun provideLotwSatellitesRepo(): com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo
 }
 
 data class MutualPassData(

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/repository/ISettingsRepo.kt

@@ -45,7 +45,8 @@ interface ISettingsRepo {
     //region # Station position settings
     val stationPosition: StateFlow<GeoPos>
     fun setStationPosition(latitude: Double, longitude: Double, altitude: Double): Boolean
-    fun setStationPosition(): Boolean
+    /** GPS fix (suspend): true only with a fix; false on missing permission/timeout/no signal */
+    suspend fun setStationPosition(): Boolean
     fun setStationPosition(locator: String): Boolean
     //endregion
 

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/source/IRemoteSource.kt

@@ -22,4 +22,7 @@ import java.io.InputStream
 interface IRemoteSource {
     suspend fun getFileStream(uri: String): InputStream?
     suspend fun getNetworkStream(url: String): InputStream?
+
+    /** Fetch AMSAT status page HTML (with UA; null = failure) */
+    suspend fun getStatusHtml(): String?
 }

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/source/Sources.kt

@@ -18,6 +18,10 @@
 package com.rtbishop.look4sat.core.domain.source
 
 object Sources {
+    // Default URL for online updates (user can change/reset it via the "Custom URL" dialog)
+    val defaultTleUrl = "https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=csv"
+    val defaultTransceiversUrl = "https://db.satnogs.org/api/transmitters/?format=json&status=active"
+
     val satelliteDataUrls = mapOf(
         "All" to "https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=csv",
         "Amateur" to "https://celestrak.org/NORAD/elements/gp.php?GROUP=amateur&FORMAT=csv",

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/usecase/IShowToast.kt

@@ -19,4 +19,7 @@ package com.rtbishop.look4sat.core.domain.usecase
 
 interface IShowToast {
     operator fun invoke(message: String)
+
+    /** Show by resource ID (four-language text) */
+    operator fun invoke(resId: Int)
 }

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/utility/DopplerFrequencyCalculator.kt

@@ -11,6 +11,7 @@ package com.rtbishop.look4sat.core.domain.utility
 
 import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
+import java.util.Locale
 
 /**
  * Computes Doppler-corrected reciprocal frequencies for linear transponders.
@@ -44,6 +45,9 @@ object DopplerFrequencyCalculator {
      * Given a downlink frequency, compute the Doppler-corrected uplink frequency
      * with an offset applied to the downlink (in Hz).
      * Returns null if the transponder is not a linear passband type.
+     *
+     * The user-entered downlink frequency already includes the offset, so subtract
+     * it before mapping the downlink passband position back to the uplink.
      */
     fun computeUplinkFromDownlinkWithOffset(
         downlinkHz: Long,
@@ -52,7 +56,7 @@ object DopplerFrequencyCalculator {
         offsetHz: Long
     ): Long? {
         if (!isLinearTransponder(transponder)) return null
-        val baseUplink = TransponderMapper.mapDownlinkToUplink(downlinkHz + offsetHz, transponder) ?: return null
+        val baseUplink = TransponderMapper.mapDownlinkToUplink(downlinkHz - offsetHz, transponder) ?: return null
         return orbitalPos.getUplinkFreq(baseUplink)
     }
 
@@ -95,4 +99,26 @@ object DopplerFrequencyCalculator {
         return upLow != null && upHigh != null && downLow != null && downHigh != null
                 && upLow != upHigh && downLow != downHigh
     }
+
+    /**
+     * True for the radio entry that should drive the standalone Calculator page.
+     *
+     * A frequency range alone is not enough: some non-user-facing or drifting data entries
+     * can also have low/high frequencies. The calculator is meant for the named linear
+     * transponder entry, e.g. "Linear Transponder", "Linear Transp.", "SSB Transponder".
+     */
+    fun isNamedLinearTransponder(transponder: SatRadio): Boolean {
+        if (!isLinearTransponder(transponder)) return false
+
+        val info = transponder.info.lowercase(Locale.ENGLISH)
+        val modes = listOfNotNull(transponder.downlinkMode, transponder.uplinkMode)
+            .joinToString(separator = " ")
+            .lowercase(Locale.ENGLISH)
+        val hasLinearName = info.contains("linear")
+        val hasTransponderName = info.contains("transponder") || info.contains("transp") ||
+                info.contains("xponder") || info.contains("xpdr")
+        val hasLinearMode = listOf("ssb", "usb", "lsb", "cw").any { modes.contains(it) }
+
+        return (hasLinearName && hasTransponderName) || (hasTransponderName && hasLinearMode)
+    }
 }

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/utility/QthConverter.kt

@@ -118,7 +118,7 @@ fun qthToSquare(locator: String): String {
  * Builds the 3x3 grid of 4-char squares surrounding [square] (e.g. "OL42").
  * Row 0 = north (lat +1), col 0 = west (lon -1). Handles field/square carry
  * at boundaries (e.g. "AA00" wraps to "RR99" at the south-west corner).
- * Mirrors the neighbor logic decompiled from the QTH定位器 app.
+ * Mirrors the neighbor logic decompiled from the QTH Locator app.
  */
 fun qthNeighbors(square: String): List<String> {
     if (square.length != 4) return emptyList()

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/ILotwSatellitesRepo.kt

@@ -0,0 +1,15 @@
+/* ILotwSatellitesRepo.kt - LoTW satellite list refresh interface (domain layer, 4.5.5).
+ * Impl: LotwSatellitesRepo in core/data (downloads ARRL config.tq6).
+ */
+package com.rtbishop.look4sat.core.domain.wavelog
+
+interface ILotwSatellitesRepo {
+    sealed class RefreshResult {
+        data class Ok(val count: Int) : RefreshResult()
+        data class Error(val message: String) : RefreshResult()
+    }
+
+    fun restore()
+
+    suspend fun refresh(): RefreshResult
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/LotwSatellites.kt

@@ -0,0 +1,22 @@
+/* LotwSatellites.kt - LoTW-supported satellite name list (112, statically embedded).
+ * Source: https://lotw.arrl.org/lotw/config.tq6 (gzip XML, official ARRL!)
+ * WaveLog updates its satellite table's lotw field from the same source (Update_model.php lotw_sats()).
+ * At runtime LotwSatellitesRepo can refresh it manually (settings WaveLog section button).
+ */
+package com.rtbishop.look4sat.core.domain.wavelog
+
+object LotwSatellites {
+    private val staticNames: Set<String> = setOf("AISAT1", "AO-10", "AO-109", "AO-123", "AO-13", "AO-16", "AO-21", "AO-27", "AO-3", "AO-4", "AO-40", "AO-51", "AO-6", "AO-7", "AO-73", "AO-8", "AO-85", "AO-91", "AO-92", "ARISS", "Arsene", "BO-102", "BY70-1", "CAS-2T", "CAS-3H", "CAS-4A", "CAS-4B", "DO-64", "EO-79", "EO-88", "FO-118", "FO-12", "FO-20", "FO-29", "FO-99", "FS-3", "HO-107", "HO-113", "HO-119", "HO-68", "INSPR7", "IO-117", "IO-86", "JO-97", "KEDR", "LEDSAT", "LO-19", "LO-78", "LO-87", "LO-90", "MAYA-3", "MAYA-4", "MIREX", "MO-112", "MO-122", "NO-103", "NO-104", "NO-44", "NO-83", "NO-84", "PO-101", "QO-100", "RS-1", "RS-10", "RS-11", "RS-12", "RS-13", "RS-15", "RS-2", "RS-44", "RS-5", "RS-6", "RS-7", "RS-8", "SAREX", "SO-121", "SO-124", "SO-125", "SO-35", "SO-41", "SO-50", "SO-67", "SONATE", "TAURUS", "TEVEL1", "TEVEL2", "TEVEL3", "TEVEL4", "TEVEL5", "TEVEL6", "TEVEL7", "TEVEL8", "TO-108", "UKUBE1", "UO-14", "UVSQ", "VO-52", "XW-2A", "XW-2B", "XW-2C", "XW-2D", "XW-2E", "XW-2F", "TEV2-1", "TEV2-2", "TEV2-3", "TEV2-4", "TEV2-5", "TEV2-6", "TEV2-7", "TEV2-8", "TEV2-9")
+
+    @Volatile
+    private var dynamicNames: Set<String> = emptySet()
+
+    /** Effective satellite names: static embedded set union runtime updates */
+    val names: Set<String>
+        get() = if (dynamicNames.isEmpty()) staticNames else staticNames + dynamicNames
+
+    /** Runtime update (settings button -> called after LotwSatellitesRepo.refresh()) */
+    fun updateNames(newNames: Set<String>) {
+        if (newNames.isNotEmpty()) dynamicNames = newNames
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/WaveLogApi.kt

@@ -0,0 +1,279 @@
+/*
+ * WaveLogApi.kt - WaveLog log server API client (4.5.2 override fix 2).
+ *
+ * Supports both v1 and v2 (user's server only has v1 in practice; v2 returns 404):
+ *   v2: POST {base}/api/v2/qso            (Authorization: Bearer + JSON fields)
+ *   v1: POST {base}/index.php/api/qso     (key in JSON body + ADIF string)
+ * Strategy: try v2 first, auto-fallback to v1 on 404.
+ * Test connection: v2 GET api/v2/token; on 404 use v1 POST api/get_contacts_adif.
+ * Station grid: only v2 has GET api/v2/station/{id}; v1 lacks it -> fall back to user QTH.
+ */
+package com.rtbishop.look4sat.core.domain.wavelog
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.json.JSONObject
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.io.OutputStreamWriter
+import java.net.HttpURLConnection
+import java.net.URL
+import java.util.Locale
+
+/** Station info (GET /api/v2/station/{id} result) */
+data class WavelogStation(
+    val id: Int,
+    val name: String,
+    val callsign: String,
+    val gridsquare: String
+)
+
+sealed class WavelogResult {
+    data class Success(val message: String) : WavelogResult()
+    data class Failure(val message: String) : WavelogResult()
+}
+
+object WaveLogApi {
+
+    private const val TIMEOUT_MS = 15000
+
+    /** Normalize server URL: strip trailing slash/index.php; prepend https:// when missing */
+    fun normalizeUrl(raw: String): String {
+        var u = raw.trim().trimEnd('/')
+        if (u.isBlank()) return ""
+        if (!u.startsWith("http://") && !u.startsWith("https://")) u = "https://$u"
+        if (u.endsWith("/index.php")) u = u.removeSuffix("/index.php")
+        return u
+    }
+
+    /** Test connection: v2 GET api/v2/token; on 404 use v1 POST api/get_contacts_adif */
+    suspend fun testToken(url: String, apiKey: String, stationId: String = ""): WavelogResult = withContext(Dispatchers.IO) {
+        val base = normalizeUrl(url)
+        if (base.isBlank()) return@withContext WavelogResult.Failure("服务器地址为空")
+
+        // v2: GET /index.php/api/v2/token
+        val v2 = httpRequest("$base/index.php/api/v2/token", "GET", apiKey, null)
+        if (v2.first in 200..299) return@withContext WavelogResult.Success("连接成功 (API v2)")
+
+        // v1: POST /index.php/api/get_contacts_adif (key in body)
+        if (stationId.isNotBlank()) {
+            val body = JSONObject().apply {
+                put("key", apiKey)
+                put("station_id", stationId)
+                put("fetchfromid", 0)
+            }.toString()
+            val v1 = httpRequest("$base/index.php/api/get_contacts_adif", "POST", apiKey, body)
+            if (v1.first in 200..299) return@withContext WavelogResult.Success("连接成功 (API v1)")
+            if (v1.first == 401) return@withContext WavelogResult.Failure("API 密钥无效 (v1: 401)")
+        }
+        // v1 attempt without index.php
+        val body = JSONObject().apply {
+            put("key", apiKey)
+            put("station_id", stationId)
+            put("fetchfromid", 0)
+        }.toString()
+        val v1b = httpRequest("$base/api/get_contacts_adif", "POST", apiKey, body)
+        if (v1b.first in 200..299) return@withContext WavelogResult.Success("连接成功 (API v1)")
+        if (v1b.first == 401) return@withContext WavelogResult.Failure("API 密钥无效 (v1: 401)")
+
+        WavelogResult.Failure("连接失败: v2 HTTP ${v2.first}, v1 HTTP ${v1b.first} — 请确认服务器地址/密钥正确")
+    }
+
+    /** Station info: v2 only; v1 lacks the endpoint (grid check falls back to user QTH) */
+    suspend fun getStation(url: String, apiKey: String, stationId: String): WavelogResult = withContext(Dispatchers.IO) {
+        val base = normalizeUrl(url)
+        if (base.isBlank()) return@withContext WavelogResult.Failure("服务器地址为空")
+        val (code, resp) = httpRequest("$base/index.php/api/v2/station/$stationId", "GET", apiKey, null)
+        if (code in 200..299) {
+            return@withContext try {
+                val obj = JSONObject(resp)
+                val data = obj.optJSONObject("data") ?: obj
+                val station = WavelogStation(
+                    id = data.optInt("id"),
+                    name = data.optString("name"),
+                    callsign = data.optString("callsign"),
+                    gridsquare = data.optString("gridsquare")
+                )
+                WavelogResult.Success(JSONObject().apply {
+                    put("id", station.id); put("name", station.name)
+                    put("callsign", station.callsign); put("gridsquare", station.gridsquare)
+                }.toString())
+            } catch (e: Exception) {
+                WavelogResult.Failure("解析失败: ${e.message}")
+            }
+        }
+        // v1 has no station endpoint -> return empty Success (caller falls back to user QTH)
+        WavelogResult.Success("")
+    }
+
+    /** LoTW-recognized satellite name: main name before parentheses, uppercased (ISS special case) */
+    fun normalizeSatName(raw: String): String {
+        val main = raw.substringBefore('(').trim()
+            .ifBlank { raw.trim() }
+            .uppercase(Locale.ENGLISH)
+        // Matching logic (mirrors WaveLog satellite table name/displayname matching + LoTW list):
+        // 1. Already in LoTW list (common TLE name == common name) -> return as-is
+        // 2. Not present -> check Celestrak alias map (SAUDISAT 1C -> SO-50 etc.); mapped name must be in LoTW list
+        // 3. Still unmatched -> return as-is (uploads are not blocked; QSO is still saved)
+        val commonName = mapOf(
+            "ZARYA" to "ARISS",
+            "ARISS" to "ARISS",
+            "FUNCUBE-1" to "AO-73",
+            "DIWATA-2B" to "PO-101",
+            "SAUDISAT-1C" to "SO-50",
+            "SAUDISAT 1C" to "SO-50",
+            "DIWATA-2A" to "PO-101"
+        )
+        val candidate = commonName[main] ?: main
+        return if (candidate in LotwSatellites.names) candidate else main
+    }
+
+    /** Create QSO: v2 first, fall back to v1 (ADIF) on 404 */
+    suspend fun postQso(
+        url: String,
+        apiKey: String,
+        stationProfileId: String,
+        qso: WavelogQso,
+        gridsquare: String
+    ): WavelogResult = withContext(Dispatchers.IO) {
+        val base = normalizeUrl(url)
+        if (base.isBlank()) return@withContext WavelogResult.Failure("服务器地址为空")
+
+        val satName = normalizeSatName(qso.satName)
+
+        // v2: POST /index.php/api/v2/qso (JSON fields)
+        val v2Body = JSONObject().apply {
+            put("station_profile_id", stationProfileId.toIntOrNull() ?: 0)
+            put("call", qso.call)
+            put("band", "SAT")
+            put("mode", qso.mode)
+            put("qso_date", utcDate(qso.timeUtcMs))
+            put("time_on", utcTime(qso.timeUtcMs))
+            put("freq", String.format(Locale.ENGLISH, "%.6fM", qso.freqTxHz / 1_000_000.0))
+            put("freq_rx", String.format(Locale.ENGLISH, "%.6fM", qso.freqRxHz / 1_000_000.0))
+            put("gridsquare", gridsquare)
+            put("rst_sent", "59")
+            put("rst_rcvd", "59")
+            put("sat_name", satName)
+        }
+        val (code, resp) = httpRequest("$base/index.php/api/v2/qso", "POST", apiKey, v2Body.toString())
+        if (code in 200..299) return@withContext WavelogResult.Success("已上传 (v2)")
+        if (code == 409) return@withContext WavelogResult.Success("重复(已存在)")
+
+        // v1: POST /index.php/api/qso (key in body + ADIF)
+        val v1Body = JSONObject().apply {
+            put("key", apiKey)
+            put("station_profile_id", stationProfileId)
+            put("type", "adif")
+            put("string", toAdif(qso, gridsquare, satName))
+        }
+        val (code1, resp1) = httpRequest("$base/index.php/api/qso", "POST", apiKey, v1Body.toString())
+        if (code1 in 200..299) return@withContext WavelogResult.Success("已上传 (v1)")
+
+        // v1 without index.php
+        val (code1b, resp1b) = httpRequest("$base/api/qso", "POST", apiKey, v1Body.toString())
+        if (code1b in 200..299) return@withContext WavelogResult.Success("已上传 (v1)")
+
+        WavelogResult.Failure("上传失败: v2 HTTP $code, v1 HTTP $code1 — ${shortError(resp1.ifBlank { resp1b })}")
+    }
+
+    /** v1 ADIF string (freq in MHz, length = UTF-8 byte count, sat_name normalized) */
+    private fun toAdif(qso: WavelogQso, gridsquare: String, satName: String): String {
+        fun field(name: String, value: String): String {
+            val bytes = value.toByteArray(Charsets.UTF_8).size
+            return "<$name:$bytes>$value"
+        }
+        return buildString {
+            append(field("call", qso.call))
+            append(field("band", "SAT"))
+            append(field("mode", qso.mode))
+            append(field("freq", String.format(Locale.ENGLISH, "%.6f", qso.freqTxHz / 1_000_000.0)))
+            if (qso.freqRxHz > 0) {
+                append(field("freq_rx", String.format(Locale.ENGLISH, "%.6f", qso.freqRxHz / 1_000_000.0)))
+            }
+            append(field("qso_date", utcDateCompact(qso.timeUtcMs)))
+            append(field("time_on", utcTimeCompact(qso.timeUtcMs)))
+            append(field("rst_sent", "59"))
+            append(field("rst_rcvd", "59"))
+            if (gridsquare.isNotBlank()) append(field("gridsquare", gridsquare.take(4)))
+            if (satName.isNotBlank()) {
+                append(field("sat_name", satName))
+                append(field("prop_mode", "SAT"))
+            }
+            append("<eor>")
+        }
+    }
+
+    /** Generic HTTP request (returns code + body) */
+    private fun httpRequest(url: String, method: String, apiKey: String, jsonBody: String?): Pair<Int, String> {
+        return try {
+            val conn = URL(url).openConnection() as HttpURLConnection
+            conn.requestMethod = method
+            conn.connectTimeout = TIMEOUT_MS
+            conn.readTimeout = TIMEOUT_MS
+            if (apiKey.isNotBlank()) conn.setRequestProperty("Authorization", "Bearer $apiKey")
+            if (jsonBody != null) {
+                conn.doOutput = true
+                conn.setRequestProperty("Content-Type", "application/json")
+                conn.setRequestProperty("Accept", "application/json")
+                OutputStreamWriter(conn.outputStream, Charsets.UTF_8).use { it.write(jsonBody) }
+            }
+            val code = conn.responseCode
+            val stream = if (code in 200..299) conn.inputStream else conn.errorStream
+            val body = if (stream != null) {
+                BufferedReader(InputStreamReader(stream, Charsets.UTF_8)).use { it.readText() }
+            } else ""
+            code to body
+        } catch (e: Exception) {
+            -1 to (e.message ?: e.javaClass.simpleName)
+        }
+    }
+
+    private fun shortError(body: String): String {
+        if (body.startsWith("<")) return body.take(80) // HTML error page
+        return try {
+            val obj = JSONObject(body)
+            val err = obj.optJSONObject("error")
+            err?.optString("message")?.ifBlank { body.take(120) }
+                ?: obj.optString("reason").ifBlank { obj.optString("message").ifBlank { body.take(120) } }
+        } catch (_: Exception) {
+            body.take(120)
+        }
+    }
+
+    private fun utcDate(ms: Long): String {
+        val cal = java.util.Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"))
+        cal.timeInMillis = ms
+        return "%04d-%02d-%02d".format(
+            cal.get(java.util.Calendar.YEAR), cal.get(java.util.Calendar.MONTH) + 1,
+            cal.get(java.util.Calendar.DAY_OF_MONTH)
+        )
+    }
+
+    private fun utcTime(ms: Long): String {
+        val cal = java.util.Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"))
+        cal.timeInMillis = ms
+        return "%02d:%02d:%02d".format(
+            cal.get(java.util.Calendar.HOUR_OF_DAY), cal.get(java.util.Calendar.MINUTE),
+            cal.get(java.util.Calendar.SECOND)
+        )
+    }
+
+    private fun utcDateCompact(ms: Long): String {
+        val cal = java.util.Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"))
+        cal.timeInMillis = ms
+        return "%04d%02d%02d".format(
+            cal.get(java.util.Calendar.YEAR), cal.get(java.util.Calendar.MONTH) + 1,
+            cal.get(java.util.Calendar.DAY_OF_MONTH)
+        )
+    }
+
+    private fun utcTimeCompact(ms: Long): String {
+        val cal = java.util.Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"))
+        cal.timeInMillis = ms
+        return "%02d%02d%02d".format(
+            cal.get(java.util.Calendar.HOUR_OF_DAY), cal.get(java.util.Calendar.MINUTE),
+            cal.get(java.util.Calendar.SECOND)
+        )
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/WavelogQueue.kt

@@ -0,0 +1,108 @@
+/*
+ * WavelogQueue.kt - WaveLog local log queue (4.5.2).
+ *
+ * Pure Kotlin (no Android deps): storage goes through the IWavelogQueueStore interface,
+ * implemented with SharedPreferences in core/data.
+ * Queue capped at 500 entries (oldest dropped beyond that).
+ */
+package com.rtbishop.look4sat.core.domain.wavelog
+
+import org.json.JSONArray
+import org.json.JSONObject
+
+/** Storage abstraction (SharedPreferences impl lives in core/data) */
+interface IWavelogQueueStore {
+    fun load(): String
+    fun save(json: String)
+}
+
+/** QSO entry awaiting upload (local queue element, mirrors POST /api/v2/qso fields) */
+data class WavelogQso(
+    val id: String,              // 本地唯一 id(UUID)
+    val timeUtcMs: Long,         // 回车时刻 UTC 毫秒(本地显示 + 组装 qso_date/time_on)
+    val call: String,
+    val mode: String,
+    val freqTxHz: Long,          // 上行(回车那一秒多普勒修正)
+    val freqRxHz: Long,          // 下行
+    val satName: String,
+    val sessionId: String = "",  // 场次 ID: 卫星名-AOS 时间戳(过境仰角 0 秒), 空=未分组(旧数据)
+    val gridsquare: String = "", // 对方网格(QRZ 爬虫填入, 4.5.5), 空=未查到
+    val uploaded: Boolean = false // 是否已成功上传(4.5.2 修复: 成功后保留标记, 表格打勾)
+)
+
+class WavelogQueue(private val store: IWavelogQueueStore) {
+
+    private val key = "wavelog_queue"
+
+    fun all(): List<WavelogQso> {
+        val raw = store.load()
+        return try {
+            val arr = JSONArray(raw)
+            (0 until arr.length()).map { i ->
+                val o = arr.getJSONObject(i)
+                WavelogQso(
+                    id = o.getString("id"),
+                    timeUtcMs = o.getLong("timeUtcMs"),
+                    call = o.optString("call"),
+                    mode = o.optString("mode"),
+                    freqTxHz = o.optLong("freqTxHz"),
+                    freqRxHz = o.optLong("freqRxHz"),
+                    satName = o.optString("satName"),
+                    sessionId = o.optString("sessionId"),
+                    gridsquare = o.optString("gridsquare"),
+                    uploaded = o.optBoolean("uploaded", false)
+                )
+            }
+        } catch (_: Exception) { emptyList() }
+    }
+
+    @Synchronized
+    fun add(qso: WavelogQso) {
+        val list = all().toMutableList()
+        list.add(0, qso) // 最新在前
+        if (list.size > 500) list.removeAt(list.size - 1)
+        save(list)
+    }
+
+    @Synchronized
+    fun remove(id: String) {
+        save(all().filter { it.id != id })
+    }
+
+    @Synchronized
+    fun removeAll(ids: Set<String>) {
+        save(all().filter { it.id !in ids })
+    }
+
+    /** Mark as uploaded (kept in the queue; checkmark in the table) */
+    @Synchronized
+    fun markUploaded(id: String) {
+        save(all().map { if (it.id == id) it.copy(uploaded = true) else it })
+    }
+
+    /** Update a QSO's counterpart grid (async backfill from the QRZ scraper, 4.5.5) */
+    fun updateGridsquare(id: String, grid: String) {
+        save(all().map { if (it.id == id) it.copy(gridsquare = grid) else it })
+    }
+
+    /** Remove all uploaded entries (optional; keeps the queue lean) */
+    @Synchronized
+    fun removeUploaded() {
+        save(all().filter { !it.uploaded })
+    }
+
+    private fun save(list: List<WavelogQso>) {
+        val arr = JSONArray()
+        list.forEach { q ->
+            arr.put(JSONObject().apply {
+                put("id", q.id); put("timeUtcMs", q.timeUtcMs); put("call", q.call)
+                put("mode", q.mode); put("freqTxHz", q.freqTxHz)
+                put("freqRxHz", q.freqRxHz); put("satName", q.satName)
+                put("sessionId", q.sessionId)
+                put("gridsquare", q.gridsquare)
+                put("uploaded", q.uploaded)
+            })
+        }
+        store.save(arr.toString())
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/WavelogUploader.kt

@@ -0,0 +1,92 @@
+/*
+ * WavelogUploader.kt - WaveLog queue upload scheduler (4.5.2).
+ *
+ * Manual/periodic uploads share: per-batch grid check (user QTH first 4 chars vs station grid first 4 chars)
+ * -> POST /api/v2/qso -> success removes from the queue.
+ * Grid mismatch: returns NeedConfirm (UI dialog "Ignore and upload / Cancel"),
+ * retrying the batch with force=true once confirmed.
+ */
+package com.rtbishop.look4sat.core.domain.wavelog
+
+import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
+import org.json.JSONObject
+
+sealed class UploadOutcome {
+    data class NeedConfirm(val stationGrid: String, val userGrid: String) : UploadOutcome()
+    data class Done(
+        val successCount: Int,
+        val failedCount: Int,
+        val message: String,
+        val firstError: String = ""
+    ) : UploadOutcome()
+}
+
+class WavelogUploader(
+    private val settingsRepo: ISettingsRepo,
+    private val queue: WavelogQueue
+) {
+
+    // Station grid cache (refreshed before each upload; stale value kept on failure)
+    private var cachedStationGrid: String? = null
+
+    /** Upload the whole queue. force=true skips the grid confirm (user chose "Ignore and upload") */
+    suspend fun uploadQueue(force: Boolean = false): UploadOutcome {
+        val settings = settingsRepo.otherSettings.value
+        val url = settings.wavelogUrl
+        val apiKey = settings.wavelogApiKey
+        val stationId = settings.wavelogStationId
+        if (url.isBlank() || apiKey.isBlank() || stationId.isBlank()) {
+            return UploadOutcome.Done(0, queue.all().size, "未配置 WaveLog 服务器")
+        }
+
+        // 1. Fetch station info (station grid); fall back to user QTH when v1 lacks the endpoint
+        val stationGrid = getStationGrid(url, apiKey, stationId) ?: userQthGrid()
+        if (stationGrid.isNullOrBlank()) {
+            return UploadOutcome.Done(0, queue.all().size, "无法获取站点信息(检查站点 ID/密钥权限)")
+        }
+
+        // 2. Grid check: cloud station grid first 4 chars vs current station QTH first 4 chars
+        //   (guards against a misconfigured station; unrelated to the QSO counterpart grid - per user)
+        if (!force) {
+            val userGrid = userQthGrid()
+            if (userGrid != null && stationGrid.take(4).lowercase() != userGrid.take(4).lowercase()) {
+                return UploadOutcome.NeedConfirm(stationGrid, userGrid)
+            }
+        }
+
+        // 3. Upload one by one. ADIF gridsquare = counterpart grid (the QSO partner); blank until the scraper lands
+        val entries = queue.all()
+        var ok = 0
+        var fail = 0
+        var firstError = ""
+        for (qso in entries) {
+            if (qso.uploaded) { ok++; continue }
+            val result = WaveLogApi.postQso(url, apiKey, stationId, qso, qso.gridsquare)
+            if (result is WavelogResult.Success) {
+                ok++
+                queue.markUploaded(qso.id)
+            } else {
+                fail++
+                if (firstError.isBlank()) firstError = (result as? WavelogResult.Failure)?.message ?: ""
+            }
+        }
+        val message = if (fail == 0) "成功上传 $ok 条" else "成功 $ok 条, 失败 $fail 条(保留待重试)"
+        return UploadOutcome.Done(ok, fail, message, firstError)
+    }
+
+    private suspend fun getStationGrid(url: String, apiKey: String, stationId: String): String? {
+        val result = WaveLogApi.getStation(url, apiKey, stationId)
+        if (result is WavelogResult.Success) {
+            return try {
+                JSONObject(result.message).optString("gridsquare").takeIf { it.isNotBlank() }
+                    ?: cachedStationGrid
+            } catch (_: Exception) { cachedStationGrid }
+        }
+        return cachedStationGrid
+    }
+
+    /** User's current QTH grid (first 4 chars; null when no QTH = check skipped) */
+    private fun userQthGrid(): String? {
+        return settingsRepo.stationPosition.value.qthLocator?.takeIf { it.length >= 4 }
+    }
+}

core/domain/src/test/java/com/rtbishop/look4sat/core/domain/DopplerFrequencyCalculatorTest.kt

@@ -13,12 +13,15 @@ class DopplerFrequencyCalculatorTest {
         upHigh: Long = 145_500_000L,
         downLow: Long = 435_000_000L,
         downHigh: Long? = 435_500_000L,
-        inverted: Boolean = false
+        inverted: Boolean = false,
+        info: String = "Linear Transponder",
+        downlinkMode: String? = "USB",
+        uplinkMode: String? = "LSB"
     ) = SatRadio(
-        uuid = "linear", info = "Linear Transponder", isAlive = true,
+        uuid = "linear", info = info, isAlive = true,
         downlinkLow = downLow, downlinkHigh = downHigh,
-        downlinkMode = "USB", uplinkLow = upLow, uplinkHigh = upHigh,
+        downlinkMode = downlinkMode, uplinkLow = upLow, uplinkHigh = upHigh,
-        uplinkMode = "LSB", isInverted = inverted, catnum = 12345
+        uplinkMode = uplinkMode, isInverted = inverted, catnum = 12345
     )
 
     private fun fmTransponder() = SatRadio(
@@ -48,6 +51,28 @@ class DopplerFrequencyCalculatorTest {
         assertFalse(DopplerFrequencyCalculator.isLinearTransponder(xpdr))
     }
 
+    @Test
+    fun isNamedLinearTransponder_returnsTrueForLinearTransponderName() {
+        assertTrue(DopplerFrequencyCalculator.isNamedLinearTransponder(linearTransponder()))
+    }
+
+    @Test
+    fun isNamedLinearTransponder_returnsTrueForSsbTransponderName() {
+        val xpdr = linearTransponder(info = "Mode V/U SSB Transponder", downlinkMode = "USB", uplinkMode = "LSB")
+        assertTrue(DopplerFrequencyCalculator.isNamedLinearTransponder(xpdr))
+    }
+
+    @Test
+    fun isNamedLinearTransponder_returnsFalseForRangeEntryWithoutTransponderName() {
+        val driftingRangeEntry = linearTransponder(info = "Upper side band (drifting)")
+        assertFalse(DopplerFrequencyCalculator.isNamedLinearTransponder(driftingRangeEntry))
+    }
+
+    @Test
+    fun isNamedLinearTransponder_returnsFalseForFmRepeater() {
+        assertFalse(DopplerFrequencyCalculator.isNamedLinearTransponder(fmTransponder()))
+    }
+
     @Test
     fun computeUplinkFromDownlink_linear_noDoppler() {
         val xpdr = linearTransponder()
@@ -93,6 +118,53 @@ class DopplerFrequencyCalculatorTest {
         assertNull(result)
     }
 
+    @Test
+    fun computeDownlinkFromUplink_withPositiveOffset_addsOffsetToDownlink() {
+        val xpdr = linearTransponder()
+        val orbitalPos = pos(0.0)
+        val downlink = DopplerFrequencyCalculator.computeDownlinkFromUplinkWithOffset(
+            uplinkHz = 145_200_000L,
+            transponder = xpdr,
+            orbitalPos = orbitalPos,
+            offsetHz = 2_500L
+        )
+        assertEquals(435_202_500L, downlink)
+    }
+
+    @Test
+    fun computeUplinkFromDownlink_withPositiveOffset_subtractsOffsetBeforeMapping() {
+        val xpdr = linearTransponder()
+        val orbitalPos = pos(0.0)
+        val uplink = DopplerFrequencyCalculator.computeUplinkFromDownlinkWithOffset(
+            downlinkHz = 435_202_500L,
+            transponder = xpdr,
+            orbitalPos = orbitalPos,
+            offsetHz = 2_500L
+        )
+        assertEquals(145_200_000L, uplink)
+    }
+
+    @Test
+    fun computeOffsetRoundTrip_handlesNegativeOffset() {
+        val xpdr = linearTransponder()
+        val orbitalPos = pos(0.0)
+        val downlink = DopplerFrequencyCalculator.computeDownlinkFromUplinkWithOffset(
+            uplinkHz = 145_200_000L,
+            transponder = xpdr,
+            orbitalPos = orbitalPos,
+            offsetHz = -2_500L
+        )
+        assertEquals(435_197_500L, downlink)
+
+        val uplink = DopplerFrequencyCalculator.computeUplinkFromDownlinkWithOffset(
+            downlinkHz = downlink!!,
+            transponder = xpdr,
+            orbitalPos = orbitalPos,
+            offsetHz = -2_500L
+        )
+        assertEquals(145_200_000L, uplink)
+    }
+
     @Test
     fun computeUplinkFromDownlink_invertedTransponder() {
         val xpdr = linearTransponder(inverted = true, downHigh = 435_500_000L)

core/domain/src/test/java/com/rtbishop/look4sat/core/domain/QthConverterTest.kt

@@ -87,7 +87,7 @@ class QthConverterTest {
 
     @Test
     fun `Given square returns correct 3x3 neighbors`() {
-        // Reference grid from the QTH定位器 screenshot: OL42
+        // Reference grid from the QTH Locator screenshot: OL42
         val neighbors = qthNeighbors("OL42")
         assert(neighbors == listOf(
             "OL33", "OL43", "OL53",

core/domain/src/test/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDecoderTest.kt

@@ -0,0 +1,149 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import kotlin.math.PI
+import kotlin.math.sin
+
+/**
+ * Tests for the fldigi-ported CW decoder. Generates synthetic CW audio
+ * (600 Hz tone, 8 kHz sample rate) and verifies the decoded text.
+ */
+class CwFldigiDecoderTest {
+
+    private val sampleRate = 8000
+    private val toneFreq = 600.0
+
+    /** Synthesize a CW audio buffer for a dot-dash pattern at given WPM. */
+    private fun synthPattern(pattern: String, wpm: Int): FloatArray {
+        val dotLen = CwFldigiConstants.KWPM / wpm // samples per dot
+        val samples = ArrayList<Float>()
+        for ((idx, ch) in pattern.withIndex()) {
+            val len = if (ch == '.') dotLen else 3 * dotLen
+            for (i in 0 until len) {
+                val t = i.toDouble() / sampleRate
+                samples.add((0.6 * sin(2.0 * PI * toneFreq * t)).toFloat())
+            }
+            if (idx < pattern.length - 1) {
+                for (i in 0 until dotLen) samples.add(0f) // intra-char gap
+            }
+        }
+        return samples.toFloatArray()
+    }
+
+    /** Append an inter-character gap (3 dot lengths) of silence. */
+    private fun interCharGap(wpm: Int): FloatArray {
+        val dotLen = CwFldigiConstants.KWPM / wpm
+        return FloatArray(3 * dotLen)
+    }
+
+    private fun decodeSequence(chars: List<String>, wpm: Int, useSom: Boolean = true): String {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq, useSom = useSom)
+        val dotLen = CwFldigiConstants.KWPM / wpm
+        for ((ci, pattern) in chars.withIndex()) {
+            decoder.processBuffer(synthPattern(pattern, wpm))
+            decoder.processBuffer(interCharGap(wpm))
+        }
+        // trailing silence to flush the last char
+        decoder.processBuffer(FloatArray(8 * dotLen))
+        return decoder.decodedTextFlow.value
+    }
+
+    @Test
+    fun decode_basicLetter_singleDot() {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq)
+        decoder.processBuffer(synthPattern(".", 18))
+        decoder.processBuffer(FloatArray(8 * CwFldigiConstants.KWPM / 18))
+        assertTrue("expected E in output, got: ${decoder.decodedTextFlow.value}",
+            decoder.decodedTextFlow.value.startsWith("E"))
+    }
+
+    @Test
+    fun decode_word_CQ_18wpm() {
+        val text = decodeSequence(listOf("-.-.", "--.-"), 18)
+        assertTrue("expected CQ in output, got: $text", text.contains("C") && text.contains("Q"))
+    }
+
+    @Test
+    fun decode_hello_20wpm() {
+        val text = decodeSequence(listOf("....", ".", ".-..", ".-..", "---"), 20)
+        assertTrue("expected HELLO in output, got: $text", text.contains("H"))
+    }
+
+    @Test
+    fun decode_adaptive_speed_30wpm() {
+        // Realistic usage: decoder configured near the signal speed, tracking
+        // fine-tunes from there. Verify correct decode at 30 wpm.
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq, initialWpm = 30)
+        val dotLen = CwFldigiConstants.KWPM / 30
+        for (pattern in listOf(".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---")) {
+            decoder.processBuffer(synthPattern(pattern, 30))
+            decoder.processBuffer(interCharGap(30))
+        }
+        decoder.processBuffer(FloatArray(8 * dotLen))
+        val text = decoder.decodedTextFlow.value
+        // First char may be off while tracking converges; rest must be exact.
+        assertTrue("expected B-J at 30wpm, got: $text", text.contains("B") && text.contains("J"))
+    }
+
+    @Test
+    fun reset_clearsState() {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq)
+        decoder.processBuffer(synthPattern(".", 18))
+        decoder.processBuffer(FloatArray(8 * CwFldigiConstants.KWPM / 18))
+        decoder.resetDecoder()
+        assertEquals("", decoder.decodedTextFlow.value)
+    }
+
+    @Test
+    fun morseTable_lookup() {
+        assertEquals("A", MorseTable.rxLookup(".-"))
+        assertEquals("S", MorseTable.rxLookup("..."))
+        assertEquals("1", MorseTable.rxLookup(".----"))
+        assertEquals("?", MorseTable.rxLookup("..--.."))
+        assertEquals("", MorseTable.rxLookup("........"))
+    }
+
+    @Test
+    fun somTable_hasAllAsciiLetters() {
+        val patterns = SomTable.table.map { it.pattern }.toSet()
+        val letters = listOf(".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....",
+            "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.",
+            "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..")
+        for (l in letters) {
+            assertTrue("SOM table missing letter pattern $l", patterns.contains(l))
+        }
+    }
+
+    @Test
+    fun fftFilter_lowpass_passesTone() {
+        val filt = CwFftFilt(600.0 / 8000.0, 2048)
+        // 600 Hz tone -> should pass
+        val out = arrayListOf<Double>()
+        for (i in 0 until 4096) {
+            val t = i.toDouble() / 8000.0
+            val z = CwComplex(0.5 * sin(2.0 * PI * 600.0 * t), 0.0)
+            filt.run(z)?.let { o -> for (j in 0 until 1024) out.add(o[j].abs()) }
+        }
+        val maxVal = out.maxOrNull() ?: 0.0
+        assertTrue("expected signal to pass through lowpass, max=$maxVal", maxVal > 0.05)
+    }
+}

core/presentation/src/main/java/com/rtbishop/look4sat/core/presentation/Components.kt

@@ -518,6 +518,5 @@ fun formatFrequency(frequencyHz: Long): String {
     if (frequencyHz <= 0) return "---"
     val mhz = frequencyHz / 1_000_000
     val khz = (frequencyHz % 1_000_000) / 1_000
-    val hz = frequencyHz % 1_000
+    return String.format(Locale.ENGLISH, "%d.%03d", mhz, khz)
-    return String.format(Locale.ENGLISH, "%d.%03d.%03d", mhz, khz, hz)
 }

core/presentation/src/main/java/com/rtbishop/look4sat/core/presentation/Navigation.kt

@@ -21,30 +21,45 @@ import androidx.navigation3.runtime.NavKey
 import kotlinx.serialization.Serializable
 
 @Serializable
-sealed class Screen(val iconResId: Int, val titleResId: Int) : NavKey {
+sealed class Screen(val iconResId: Int, val titleResId: Int, val screenId: String) : NavKey {
 
     @Serializable
-    data object Satellites : Screen(R.drawable.ic_satellites, R.string.nav_sat)
+    data object Satellites : Screen(R.drawable.ic_satellites, R.string.nav_sat, "Satellites")
 
     @Serializable
-    data object Passes : Screen(R.drawable.ic_passes, R.string.nav_pass)
+    data object Passes : Screen(R.drawable.ic_passes, R.string.nav_pass, "Passes")
 
     @Serializable
-    data object Radar : Screen(R.drawable.ic_radar, R.string.nav_radar)
+    data object Radar : Screen(R.drawable.ic_radar, R.string.nav_radar, "Radar")
 
     @Serializable
-    data object Map : Screen(R.drawable.ic_map, R.string.nav_map)
+    data object Map : Screen(R.drawable.ic_map, R.string.nav_map, "Map")
 
     @Serializable
-    data object Mutual : Screen(R.drawable.ic_match, R.string.nav_mutual)
+    data object Mutual : Screen(R.drawable.ic_match, R.string.nav_mutual, "Mutual")
 
     @Serializable
-    data object Roaming : Screen(R.drawable.ic_roaming, R.string.nav_roaming)
+    data object Roaming : Screen(R.drawable.ic_roaming, R.string.nav_roaming, "Roaming")
 
     @Serializable
-    data object Settings : Screen(R.drawable.ic_settings, R.string.nav_prefs)
+    data object CwDecode : Screen(R.drawable.ic_cw, R.string.nav_cw, "CwDecode")
+
+    @Serializable
+    data object WavelogLog : Screen(R.drawable.ic_log, R.string.nav_log, "WavelogLog")
+
+    @Serializable
+    data object AmSat : Screen(R.drawable.ic_satellites, R.string.nav_amsat, "AMSAT")
+
+    @Serializable
+    data object Settings : Screen(R.drawable.ic_settings, R.string.nav_prefs, "Settings")
 }
 
+// UI settings: default main-menu page order (5 bottom-bar slots)
+val defaultScreenOrder = listOf("Satellites", "Passes", "Radar", "Map", "Settings")
+
+// UI settings: default More-menu order (pages behind "More")
+val defaultSubMenuOrder = listOf("Mutual", "Roaming", "CwDecode", "WavelogLog", "AMSAT")
+
 @Serializable
 data object RadarDestination : NavKey
 

core/presentation/src/main/res/drawable/ic_cw.xml

@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <!-- Morse style icon: a dot above a dash -->
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M 8 4 L 16 4 L 16 8 L 8 8 Z" />
+
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M 3 16 L 21 16 L 21 20 L 3 20 Z" />
+</vector>

core/presentation/src/main/res/drawable/ic_log.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M6,2h9l5,5v13c0,1.1 -0.9,2 -2,2H6c-1.1,0 -2,-0.9 -2,-2V4c0,-1.1 0.9,-2 2,-2zM14,3.5V8h4.5L14,3.5zM8,12h8v2H8v-2zM8,16h8v2H8v-2z" />
+</vector>

core/presentation/src/main/res/drawable/ic_reset.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M12,6v3l4,-4 -4,-4v3c-4.42,0 -8,3.58 -8,8 0,1.57 0.46,3.03 1.24,4.26L6.7,14.8c-0.45,-0.83 -0.7,-1.79 -0.7,-2.8 0,-3.31 2.69,-6 6,-6zM18.76,7.74L17.3,9.2c0.44,0.84 0.7,1.79 0.7,2.8 0,3.31 -2.69,6 -6,6v-3l-4,4 4,4v-3c4.42,0 8,-3.58 8,-8 0,-1.57 -0.46,-3.03 -1.24,-4.26z" />
+</vector>

core/presentation/src/main/res/values-id/strings.xml

@@ -0,0 +1,288 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">Look4Sat Pro</string>
+    <string name="btn_accept">Terima</string>
+    <string name="btn_cancel">Batal</string>
+    <string name="empty_list_message">Tidak ada data untuk ditampilkan</string>
+    <string name="nav_sat">Satelit</string>
+    <string name="nav_pass">Lintasan</string>
+    <string name="nav_radar">Radar</string>
+    <string name="nav_mutual">Pasangan</string>
+    <string name="nav_roaming">Jelajah</string>
+    <string name="nav_cw">Dekoder CW</string>
+    <string name="nav_map">Peta</string>
+    <string name="nav_prefs">Pengaturan</string>
+    <string name="prefs_aprs_title">Pelaporan APRS</string>
+    <string name="prefs_aprs_enable">Aktifkan pelaporan APRS</string>
+    <string name="prefs_aprs_summary">Server: %1$s:%2$d  Panggilan: %3$s</string>
+    <string name="prefs_aprs_report_now">Lapor Sekarang</string>
+    <string name="prefs_aprs_settings_title">Pengaturan APRS</string>
+    <string name="prefs_aprs_server">Server</string>
+    <string name="prefs_aprs_port">Port</string>
+    <string name="prefs_aprs_callsign">Tanda panggilan</string>
+    <string name="prefs_aprs_ssid">SSID</string>
+    <string name="prefs_aprs_passcode">Kode sandi</string>
+    <string name="prefs_aprs_passcode_hint">Kosong = otomatis dari panggilan</string>
+    <string name="prefs_aprs_interval">Interval (menit)</string>
+    <string name="prefs_aprs_status">Teks status</string>
+    <string name="prefs_aprs_symbol_table">Tabel simbol</string>
+    <string name="prefs_aprs_symbol_code">Kode simbol</string>
+    <string name="prefs_aprs_save">Simpan</string>
+    <string name="prefs_aprs_cancel">Batal</string>
+    <string name="aprs_notif_channel">Layanan APRS</string>
+    <string name="aprs_notif_title">APRS: %1$s</string>
+    <string name="aprs_notif_running">Pelaporan berjalan</string>
+    <string name="aprs_notif_connected">Terhubung ke APRS-IS</string>
+    <string name="aprs_notif_error">Kesalahan koneksi</string>
+    <string name="aprs_notif_stop">Berhenti</string>
+    <string name="prefs_aprs_calc_passcode">Hitung kode sandi</string>
+    <string name="aprs_toast_ok">APRS: laporan terkirim</string>
+    <string name="aprs_toast_fail">APRS: laporan gagal - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS belum dikonfigurasi - isi panggilan dulu</string>
+    <string name="prefs_aprs_last_report">Laporan terakhir: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">gagal - %1$s</string>
+    <string name="nav_more">Lainnya</string>
+    <string name="nav_log">Log</string>
+    <string name="nav_amsat">AMSAT</string>
+    <string name="amsat_title">Status Satelit AMSAT</string>
+    <string name="amsat_refresh">Segarkan</string>
+    <string name="amsat_retry">Coba lagi</string>
+    <string name="amsat_updated">Diperbarui:</string>
+    <string name="amsat_active">Aktif</string>
+    <string name="amsat_tlm">TLM/beacon</string>
+    <string name="amsat_not_heard">Tidak terdengar</string>
+    <string name="amsat_conflict">Konflik</string>
+    <string name="amsat_name">Name</string>
+    <string name="amsat_load_failed">Gagal memuat - periksa jaringan dan coba lagi</string>
+    <string name="amsat_no_reports">Tidak ada laporan untuk periode ini</string>
+    <string name="amsat_close">Tutup</string>
+
+    <string name="sat_type_hint">Jenis: %s</string>
+    <string name="sat_type_title">Pilih jenis satelit</string>
+    <string name="sat_search_hint">Id - Nama</string>
+    <string name="sat_search_clear">Bersihkan</string>
+    <string name="sat_clear_all">Bersihkan semua</string>
+    <string name="sat_select_all">Pilih semua</string>
+    <string name="sat_empty_list_message">Pastikan kata kunci pencarian Anda benar dan DB sudah diperbarui</string>
+    <string name="sat_warning_title">Peringatan\!</string>
+    <string name="sat_warning_message">
+        Ada lebih dari 9000 satelit yang terdaftar di aplikasi ini.
+        Tidak masuk akal untuk melacak semuanya sekaligus.
+        \n\nSelalu coba persempit daftar hanya ke satelit yang
+        Anda minati melalui pencarian dan pemilih jenis.</string>
+    <string name="pass_filter_title">Filter lintasan</string>
+    <string name="pass_filter_elev">Elevasi minimal</string>
+    <string name="pass_filter_hours">Waktu ke depan</string>
+    <string name="pass_filter_aos_time">Jendela AOS</string>
+    <string name="pass_filter_invert_time">Balik jendela AOS</string>
+    <string name="pass_filter_deep_space">DeepSpace (periode >225 mnt)</string>
+    <string name="pass_time_placeholder" translatable="false"> -- : -- : -- </string>
+    <string name="pass_modes_title">Pilih jenis modulasi</string>
+    <string name="pass_satId" translatable="false">%05d</string>
+    <string name="pass_elevation">Elevasi: %.1f°</string>
+    <string name="pass_deep_space" translatable="false">DeepSpace</string>
+    <string name="pass_altitude">Ketinggian: %d km</string>
+    <string name="pass_aosLos" translatable="false">%03d° - %03d°</string>
+    <string name="pass_empty_list_message">
+        Pastikan filter Anda benar dan Anda sudah memilih satelit</string>
+    <string name="pass_error_message">Tidak ada lintasan satelit mendatang untuk ditampilkan</string>
+    <string name="pass_welcome_title">Selamat datang di Look4Sat\!</string>
+    <string name="pass_welcome_message">
+        Pastikan Anda mengatur posisi melalui GPS, Lat/Lon atau QTH di Pengaturan.
+        \n\nPerbarui database setidaknya seminggu sekali untuk prediksi yang akurat.</string>
+    <string name="pass_whatsnew_title" translatable="false">Apa yang baru di Look4Sat</string>
+    <string name="pass_whatsnew_message" translatable="false">
+        * BARU: Status satelit AMSAT kini menggunakan API resmi AMSAT (v1 JSON, lebih cepat dan andal)
+        * Halaman status AMSAT kini mendukung layar penuh (tombol refresh dan waktu selalu dapat diakses)
+        * WaveLog: pencarian grid lawan QRZ (dialog ⚙ tempel Cookie + uji query)
+        * WaveLog: tombol perbarui daftar satelit LoTW (112 satelit bawaan)
+        * WaveLog: laporan sinyal RST 59/59 untuk QSO (v1 dan v2)
+    </string>
+    <string name="radar_back">Kembali</string>
+    <string name="radar_notify">Beri tahu</string>
+    <string name="radar_az_text">Azimuth</string>
+    <string name="radar_az_value" translatable="false">%.1f°</string>
+    <string name="radar_el_text">Elevasi</string>
+    <string name="radar_el_value" translatable="false">%.1f°</string>
+    <string name="radar_alt_text">Ketinggian</string>
+    <string name="radar_alt_value" translatable="false">%.0f km</string>
+    <string name="radar_dist_text">Jarak</string>
+    <string name="radar_dist_value" translatable="false">%.0f km</string>
+    <string name="radar_eclipsed">Gerhana</string>
+    <string name="radar_downlink">Downlink</string>
+    <string name="radar_uplink">Uplink</string>
+    <string name="radar_link_low" translatable="false">%.4f</string>
+    <string name="radar_link_lowHigh" translatable="false">%.4f - %.4f</string>
+    <string name="radar_no_link" translatable="false">- - . - -</string>
+    <string name="radar_no_data">Satelit ini tidak memiliki transceiver</string>
+    <string name="radar_add">Tambah</string>
+    <string name="radar_data">Transceiver satelit:</string>
+    <string name="radar_inverted">Terbalik: %s</string>
+    <string name="radar_mode">Mode: %s</string>
+    <string name="radar_string_no">Tidak</string>
+    <string name="radar_string_yes">Ya</string>
+    <string name="radar_visible">Terlihat</string>
+    <string name="radar_doppler_calc">Kalkulator Frekuensi Doppler</string>
+    <string name="radar_doppler_tx_hint">Masukkan frekuensi TX (MHz)</string>
+    <string name="radar_doppler_rx_hint">Masukkan frekuensi RX (MHz)</string>
+    <string name="radar_doppler_offset_hint">Offset (kHz)</string>
+    <string name="radar_doppler_info">Untuk transponder linier, ketik satu frekuensi untuk melihat frekuensi lainnya</string>
+    <string name="radar_cw_decoder">Dekoder CW</string>
+    <string name="radar_cw_start">Mulai</string>
+    <string name="radar_cw_stop">Berhenti</string>
+    <string name="radar_cw_reset">Bersihkan</string>
+    <string name="map_prev">Sebelumnya</string>
+    <string name="map_next">Berikutnya</string>
+    <string name="map_copyright" translatable="false">© Kontributor OpenStreetMap</string>
+    <string name="map_azimuth">Azimuth: %.1f°</string>
+    <string name="map_elevation">Elevasi: %.1f°</string>
+    <string name="map_altitude">Ketinggian: %.0f km</string>
+    <string name="map_distance">Jarak: %.0f km</string>
+    <string name="map_latitude">Lintang: %.1f°</string>
+    <string name="map_longitude">Bujur: %.1f°</string>
+    <string name="map_qth" translatable="false">QTH: %s</string>
+    <string name="map_phase">Fase: %.1f°</string>
+    <string name="map_eclipsed">Gerhana</string>
+    <string name="map_period">Periode: %.0f mnt</string>
+    <string name="map_velocity">Kecepatan: %.2f km/d</string>
+    <string name="map_visibility">Visibilitas: %s</string>
+    <string name="map_visible">Terlihat</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
+    <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
+    <string name="prefs_donate_title">Donasi</string>
+    <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
+    <string name="prefs_fdroid_title" translatable="false">F-Droid</string>
+    <string name="prefs_fdroid_url" translatable="false">https://f-droid.org/en/packages/com.rtbishop.look4sat/</string>
+    <string name="prefs_github_title" translatable="false">GitHub</string>
+    <string name="prefs_github_url" translatable="false">https://github.com/rt-bishop/Look4Sat/</string>
+    <string name="prefs_license_title" translatable="false">GPLv3</string>
+    <string name="prefs_license_url" translatable="false">https://www.gnu.org/licenses/gpl-3.0.html</string>
+    <string name="prefs_privacy_title">Kebijakan Privasi</string>
+    <string name="prefs_privacy_url" translatable="false">https://sites.google.com/view/look4sat-privacy-policy/home</string>
+    <string name="prefs_updated_title">Diperbarui: %s</string>
+    <string name="prefs_updated_time">d MMM yyyy - HH:mm:ss</string>
+    <string name="prefs_loc_title">Posisi stasiun</string>
+    <string name="prefs_loc_gps_title">GPS</string>
+    <string name="prefs_loc_gps_error">Tidak dapat mengambil lokasi - periksa izin dan sinyal GPS/jaringan</string>
+    <string name="prefs_loc_input_title">Input</string>
+    <string name="prefs_loc_input_error">Lokasi yang dimasukkan tidak valid</string>
+    <string name="prefs_loc_qth_title">QTH</string>
+    <string name="prefs_loc_qth_error">Lokator QTH tidak valid</string>
+    <string name="prefs_loc_success">Posisi berhasil diperbarui</string>
+    <string name="prefs_station_title">Pengaturan posisi stasiun</string>
+    <string name="prefs_station_lat_text">Atur garis lintang stasiun Anda</string>
+    <string name="prefs_station_lon_text">Atur garis bujur stasiun Anda</string>
+    <string name="prefs_locator_title">Pengaturan lokator QTH</string>
+    <string name="prefs_locator_text">Atur posisi stasiun menggunakan lokator</string>
+    <string name="prefs_data_title">Data satelit</string>
+    <string name="prefs_data_entries">Satelit: %s</string>
+    <string name="prefs_data_radios">Transceiver: %s</string>
+    <string name="prefs_data_update">Perbarui</string>
+    <string name="prefs_data_import">URL Kustom</string>
+    <string name="prefs_data_clear">Bersihkan</string>
+    <string name="prefs_data_clear_success">Data berhasil dibersihkan</string>
+    <string name="prefs_data_update_success">Pembaruan berhasil diselesaikan</string>
+    <string name="prefs_data_update_failed">Pembaruan gagal - periksa jaringan Anda</string>
+    <string name="prefs_data_import_satellites_error">Tidak ada satelit yang diimpor. Pilih file TLE/3LE (.txt) atau OMM (.csv) yang valid.</string>
+    <string name="prefs_data_import_transceivers_error">Tidak ada transceiver yang diimpor. Pilih file SatNOGS (.json) yang valid.</string>
+    <string name="prefs_data_sources_title">Sumber data kustom</string>
+    <string name="prefs_data_sources_tle_switch">URL TLE Kustom</string>
+    <string name="prefs_data_sources_transceivers_switch">URL transceiver kustom</string>
+    <string name="prefs_data_sources_url_title" translatable="false">URL (HTTPS)</string>
+    <string name="prefs_data_reset_url">Setel ulang ke URL bawaan</string>
+    <string name="prefs_data_output_title">Keluaran data</string>
+    <string name="prefs_net_output">Jaringan</string>
+    <string name="prefs_bt_output">Bluetooth</string>
+    <string name="prefs_cat_output">CAT</string>
+    <string name="nav_radiocontrol">Kontrol Radio</string>
+    <string name="rc_settings_title">Kontrol Radio CAT</string>
+    <string name="rc_radio_model">Model Radio</string>
+    <string name="rc_tx_device_hint">Alamat BT Radio TX</string>
+    <string name="rc_rx_device_hint">Alamat BT Radio RX</string>
+    <string name="rc_tx_name_hint">Nama Radio TX</string>
+    <string name="rc_rx_name_hint">Nama Radio RX</string>
+    <string name="rc_enable_switch">Aktifkan Kontrol CAT</string>
+    <string name="prefs_net_title">Keluaran data jaringan</string>
+    <string name="prefs_net_rotator_switch">Aktifkan keluaran rotator</string>
+    <string name="prefs_net_rotator_address_hint">IP:Port</string>
+    <string name="prefs_net_rotator_format_hint">Format</string>
+    <string name="prefs_net_frequency_switch">Aktifkan keluaran frekuensi</string>
+    <string name="prefs_net_frequency_address_hint">IP:Port</string>
+    <string name="prefs_net_frequency_format_hint">Format</string>
+    <string name="prefs_bt_title">Keluaran data Bluetooth</string>
+    <string name="prefs_bt_rotator_switch">Aktifkan keluaran rotator</string>
+    <string name="prefs_bt_rotator_device_hint">Id perangkat</string>
+    <string name="prefs_bt_rotator_output_hint">Format data</string>
+    <string name="prefs_bt_frequency_switch">Aktifkan keluaran frekuensi</string>
+    <string name="prefs_bt_frequency_device_hint">Id perangkat</string>
+    <string name="prefs_bt_frequency_output_hint">Format data</string>
+    <string name="prefs_bt_perm_error">Periksa izin bluetooth Anda</string>
+    <string name="prefs_net_perm_error">Periksa izin jaringan Anda</string>
+    <string name="tracking_status">Melacak: %s</string>
+    <string name="loc_lat_text">Lintang: %s°</string>
+    <string name="loc_lon_text">Bujur: %s°</string>
+    <string name="loc_qth_text">QTH: %s</string>
+    <string name="connect_radio">Hubungkan</string>
+    <string name="disconnect_radio">Putuskan</string>
+    <string name="track_radio">Lacak</string>
+    <string name="stop_radio">Berhenti</string>
+    <string name="prefs_wavelog_title">Server log WaveLog</string>
+    <string name="prefs_wavelog_url_hint">Alamat server</string>
+    <string name="prefs_wavelog_key_hint">Kunci API</string>
+    <string name="prefs_wavelog_station_hint">ID stasiun</string>
+    <string name="prefs_wavelog_auto">Unggah otomatis</string>
+    <string name="prefs_wavelog_test">Uji koneksi</string>
+    <string name="prefs_wavelog_update_sats">Perbarui satelit</string>
+    <string name="prefs_wavelog_upload">Unggah sekarang</string>
+    <string name="wavelog_title">Log</string>
+    <string name="wavelog_select_transponder">Pilih transponder</string>
+    <string name="wavelog_call_hint">Tanda panggil</string>
+    <string name="wavelog_mode_hint">Mode</string>
+    <string name="wavelog_saved">Tersimpan ke log lokal</string>
+    <string name="wavelog_need_config">Konfigurasikan WaveLog di Pengaturan terlebih dahulu</string>
+    <string name="wavelog_empty">Belum ada entri log</string>
+    <string name="wavelog_grid_mismatch">Grid QTH (%1$s) tidak cocok dengan grid stasiun (%2$s). Tetap unggah?</string>
+    <string name="wavelog_ignore">Abaikan dan unggah</string>
+    <string name="wavelog_cancel">Batal</string>
+    <string name="prefs_wavelog_qrz_title">QRZ Cookie</string>
+    <string name="prefs_wavelog_qrz_hint">Tempel cookie login QRZ Anda di sini (ekspor EditThisCookie atau string "k=v; k=v"). Digunakan untuk mengambil grid square stasiun lawan saat unggah.</string>
+    <string name="prefs_wavelog_qrz_label">Cookie</string>
+    <string name="wavelog_copy">Salin</string>
+    <string name="wavelog_delete_undo">Urungkan</string>
+    <string name="wavelog_col_time">Waktu</string>
+    <string name="wavelog_col_freq">Frek.</string>
+    <string name="wavelog_col_sat">Satelit</string>
+    <string name="wavelog_col_call">Panggilan</string>
+    <string name="wavelog_col_uploaded">Terkirim</string>
+    <string name="prefs_other_title">Pengaturan lainnya</string>
+    <string name="prefs_ui_title">Pengaturan UI</string>
+    <string name="prefs_ui_order_title">Urutan halaman</string>
+    <string name="prefs_ui_main_title">Menu utama (bilah bawah)</string>
+    <string name="prefs_ui_sub_title">Menu lainnya</string>
+    <string name="prefs_ui_move_out">Pindah ke menu lainnya</string>
+    <string name="prefs_ui_move_back">Kembalikan ke menu utama</string>
+    <string name="prefs_ui_order_locked">Tetap (tidak dapat dipindahkan)</string>
+    <string name="prefs_ui_order_reset">Setel ulang urutan</string>
+    <string name="prefs_other_switch_utc">Tampilkan waktu lintasan dalam UTC</string>
+    <string name="prefs_other_switch_update">Aktifkan pembaruan data otomatis</string>
+    <string name="prefs_other_switch_sweep">Aktifkan animasi sapuan radar</string>
+    <string name="prefs_other_switch_sensors">Gunakan sensor untuk memutar tampilan radar</string>
+    <string name="prefs_other_switch_night_mode">Aktifkan filter mode malam merah</string>
+    <string name="prefs_highlight_title">Sorotan elevasi</string>
+    <string name="prefs_highlight_low">Rendah &lt; %1$d°</string>
+    <string name="prefs_highlight_mid">Sedang %1$d–%2$d°</string>
+    <string name="prefs_highlight_high">Tinggi &gt; %1$d°</string>
+    <string name="prefs_outro_title">BG7NTA &amp; penulis asli mengucapkan terima kasih</string>
+    <string name="prefs_outro_thanks" translatable="false">
+        * Pengguna dan kontributor Look4Sat!
+        \n* David A. B. Johnson (predict4java)
+        \n* Dave Moten (predict4java)
+        \n* Alexandru Csete (Gpredict)
+        \n* Dr T.S. Kelso (Celestrak)
+        \n* Libre Space Foundation (SatNOGS)
+        \n* xdsopl dan kontributor Robot36!
+        \n* BA7OPF (fitur pencocokan lintasan)
+        \n* BG7NTA</string>
+    <string name="prefs_outro_license">Aplikasi ini hadir tanpa jaminan</string>
+</resources>

core/presentation/src/main/res/values-in/strings.xml

@@ -0,0 +1,288 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">Look4Sat Pro</string>
+    <string name="btn_accept">Terima</string>
+    <string name="btn_cancel">Batal</string>
+    <string name="empty_list_message">Tidak ada data untuk ditampilkan</string>
+    <string name="nav_sat">Satelit</string>
+    <string name="nav_pass">Lintasan</string>
+    <string name="nav_radar">Radar</string>
+    <string name="nav_mutual">Pasangan</string>
+    <string name="nav_roaming">Jelajah</string>
+    <string name="nav_cw">Dekoder CW</string>
+    <string name="nav_map">Peta</string>
+    <string name="nav_prefs">Pengaturan</string>
+    <string name="prefs_aprs_title">Pelaporan APRS</string>
+    <string name="prefs_aprs_enable">Aktifkan pelaporan APRS</string>
+    <string name="prefs_aprs_summary">Server: %1$s:%2$d  Panggilan: %3$s</string>
+    <string name="prefs_aprs_report_now">Lapor Sekarang</string>
+    <string name="prefs_aprs_settings_title">Pengaturan APRS</string>
+    <string name="prefs_aprs_server">Server</string>
+    <string name="prefs_aprs_port">Port</string>
+    <string name="prefs_aprs_callsign">Tanda panggilan</string>
+    <string name="prefs_aprs_ssid">SSID</string>
+    <string name="prefs_aprs_passcode">Kode sandi</string>
+    <string name="prefs_aprs_passcode_hint">Kosong = otomatis dari panggilan</string>
+    <string name="prefs_aprs_interval">Interval (menit)</string>
+    <string name="prefs_aprs_status">Teks status</string>
+    <string name="prefs_aprs_symbol_table">Tabel simbol</string>
+    <string name="prefs_aprs_symbol_code">Kode simbol</string>
+    <string name="prefs_aprs_save">Simpan</string>
+    <string name="prefs_aprs_cancel">Batal</string>
+    <string name="aprs_notif_channel">Layanan APRS</string>
+    <string name="aprs_notif_title">APRS: %1$s</string>
+    <string name="aprs_notif_running">Pelaporan berjalan</string>
+    <string name="aprs_notif_connected">Terhubung ke APRS-IS</string>
+    <string name="aprs_notif_error">Kesalahan koneksi</string>
+    <string name="aprs_notif_stop">Berhenti</string>
+    <string name="prefs_aprs_calc_passcode">Hitung kode sandi</string>
+    <string name="aprs_toast_ok">APRS: laporan terkirim</string>
+    <string name="aprs_toast_fail">APRS: laporan gagal - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS belum dikonfigurasi - isi panggilan dulu</string>
+    <string name="prefs_aprs_last_report">Laporan terakhir: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">gagal - %1$s</string>
+    <string name="nav_more">Lainnya</string>
+    <string name="nav_log">Log</string>
+    <string name="nav_amsat">AMSAT</string>
+    <string name="amsat_title">Status Satelit AMSAT</string>
+    <string name="amsat_refresh">Segarkan</string>
+    <string name="amsat_retry">Coba lagi</string>
+    <string name="amsat_updated">Diperbarui:</string>
+    <string name="amsat_active">Aktif</string>
+    <string name="amsat_tlm">TLM/beacon</string>
+    <string name="amsat_not_heard">Tidak terdengar</string>
+    <string name="amsat_conflict">Konflik</string>
+    <string name="amsat_name">Name</string>
+    <string name="amsat_load_failed">Gagal memuat - periksa jaringan dan coba lagi</string>
+    <string name="amsat_no_reports">Tidak ada laporan untuk periode ini</string>
+    <string name="amsat_close">Tutup</string>
+    <string name="sat_type_hint">Jenis: %s</string>
+    <string name="sat_type_title">Pilih jenis satelit</string>
+    <string name="sat_search_hint">Id - Nama</string>
+    <string name="sat_search_clear">Bersihkan</string>
+    <string name="sat_clear_all">Bersihkan semua</string>
+    <string name="sat_select_all">Pilih semua</string>
+    <string name="sat_empty_list_message">Pastikan kata kunci pencarian Anda benar dan DB sudah diperbarui</string>
+    <string name="sat_warning_title">Peringatan\!</string>
+    <string name="sat_warning_message">
+        Ada lebih dari 9000 satelit yang terdaftar di aplikasi ini.
+        Tidak masuk akal untuk melacak semuanya sekaligus.
+        \n\nSelalu coba persempit daftar hanya ke satelit yang
+        Anda minati melalui pencarian dan pemilih jenis.</string>
+    <string name="pass_filter_title">Filter lintasan</string>
+    <string name="pass_filter_elev">Elevasi minimal</string>
+    <string name="pass_filter_hours">Waktu ke depan</string>
+    <string name="pass_filter_aos_time">Jendela AOS</string>
+    <string name="pass_filter_invert_time">Balik jendela AOS</string>
+    <string name="pass_filter_deep_space">DeepSpace (periode >225 mnt)</string>
+    <string name="pass_time_placeholder" translatable="false"> -- : -- : -- </string>
+    <string name="pass_modes_title">Pilih jenis modulasi</string>
+    <string name="pass_satId" translatable="false">%05d</string>
+    <string name="pass_elevation">Elevasi: %.1f°</string>
+    <string name="pass_deep_space" translatable="false">DeepSpace</string>
+    <string name="pass_altitude">Ketinggian: %d km</string>
+    <string name="pass_aosLos" translatable="false">%03d° - %03d°</string>
+    <string name="pass_empty_list_message">
+        Pastikan filter Anda benar dan Anda sudah memilih satelit</string>
+    <string name="pass_error_message">Tidak ada lintasan satelit mendatang untuk ditampilkan</string>
+    <string name="pass_welcome_title">Selamat datang di Look4Sat\!</string>
+    <string name="pass_welcome_message">
+        Pastikan Anda mengatur posisi melalui GPS, Lat/Lon atau QTH di Pengaturan.
+        \n\nPerbarui database setidaknya seminggu sekali untuk prediksi yang akurat.</string>
+    <string name="pass_whatsnew_title" translatable="false">Apa yang baru di Look4Sat</string>
+    <string name="pass_whatsnew_message" translatable="false">
+        * BARU: Status satelit AMSAT kini menggunakan API resmi AMSAT (v1 JSON, lebih cepat dan andal)
+        * Halaman status AMSAT kini mendukung layar penuh (tombol refresh dan waktu selalu dapat diakses)
+        * WaveLog: pencarian grid lawan QRZ (dialog ⚙ tempel Cookie + uji query)
+        * WaveLog: tombol perbarui daftar satelit LoTW (112 satelit bawaan)
+        * WaveLog: laporan sinyal RST 59/59 untuk QSO (v1 dan v2)
+    </string>
+    <string name="radar_back">Kembali</string>
+    <string name="radar_notify">Beri tahu</string>
+    <string name="radar_az_text">Azimuth</string>
+    <string name="radar_az_value" translatable="false">%.1f°</string>
+    <string name="radar_el_text">Elevasi</string>
+    <string name="radar_el_value" translatable="false">%.1f°</string>
+    <string name="radar_alt_text">Ketinggian</string>
+    <string name="radar_alt_value" translatable="false">%.0f km</string>
+    <string name="radar_dist_text">Jarak</string>
+    <string name="radar_dist_value" translatable="false">%.0f km</string>
+    <string name="radar_eclipsed">Gerhana</string>
+    <string name="radar_downlink">Downlink</string>
+    <string name="radar_uplink">Uplink</string>
+    <string name="radar_link_low" translatable="false">%.4f</string>
+    <string name="radar_link_lowHigh" translatable="false">%.4f - %.4f</string>
+    <string name="radar_no_link" translatable="false">- - . - -</string>
+    <string name="radar_no_data">Satelit ini tidak memiliki transceiver</string>
+    <string name="radar_add">Tambah</string>
+    <string name="radar_data">Transceiver satelit:</string>
+    <string name="radar_inverted">Terbalik: %s</string>
+    <string name="radar_mode">Mode: %s</string>
+    <string name="radar_string_no">Tidak</string>
+    <string name="radar_string_yes">Ya</string>
+    <string name="radar_visible">Terlihat</string>
+    <string name="radar_doppler_calc">Kalkulator Frekuensi Doppler</string>
+    <string name="radar_doppler_tx_hint">Masukkan frekuensi TX (MHz)</string>
+    <string name="radar_doppler_rx_hint">Masukkan frekuensi RX (MHz)</string>
+    <string name="radar_doppler_offset_hint">Offset (kHz)</string>
+    <string name="radar_doppler_info">Untuk transponder linier, ketik satu frekuensi untuk melihat frekuensi lainnya</string>
+    <string name="radar_cw_decoder">Dekoder CW</string>
+    <string name="radar_cw_start">Mulai</string>
+    <string name="radar_cw_stop">Berhenti</string>
+    <string name="radar_cw_reset">Bersihkan</string>
+    <string name="map_prev">Sebelumnya</string>
+    <string name="map_next">Berikutnya</string>
+    <string name="map_copyright" translatable="false">© Kontributor OpenStreetMap</string>
+    <string name="map_azimuth">Azimuth: %.1f°</string>
+    <string name="map_elevation">Elevasi: %.1f°</string>
+    <string name="map_altitude">Ketinggian: %.0f km</string>
+    <string name="map_distance">Jarak: %.0f km</string>
+    <string name="map_latitude">Lintang: %.1f°</string>
+    <string name="map_longitude">Bujur: %.1f°</string>
+    <string name="map_qth" translatable="false">QTH: %s</string>
+    <string name="map_phase">Fase: %.1f°</string>
+    <string name="map_eclipsed">Gerhana</string>
+    <string name="map_period">Periode: %.0f mnt</string>
+    <string name="map_velocity">Kecepatan: %.2f km/d</string>
+    <string name="map_visibility">Visibilitas: %s</string>
+    <string name="map_visible">Terlihat</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
+    <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
+    <string name="prefs_donate_title">Donasi</string>
+    <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
+    <string name="prefs_fdroid_title" translatable="false">F-Droid</string>
+    <string name="prefs_fdroid_url" translatable="false">https://f-droid.org/en/packages/com.rtbishop.look4sat/</string>
+    <string name="prefs_github_title" translatable="false">GitHub</string>
+    <string name="prefs_github_url" translatable="false">https://github.com/rt-bishop/Look4Sat/</string>
+    <string name="prefs_license_title" translatable="false">GPLv3</string>
+    <string name="prefs_license_url" translatable="false">https://www.gnu.org/licenses/gpl-3.0.html</string>
+    <string name="prefs_privacy_title">Kebijakan Privasi</string>
+    <string name="prefs_privacy_url" translatable="false">https://sites.google.com/view/look4sat-privacy-policy/home</string>
+    <string name="prefs_updated_title">Diperbarui: %s</string>
+    <string name="prefs_updated_time">d MMM yyyy - HH:mm:ss</string>
+    <string name="prefs_loc_title">Posisi stasiun</string>
+    <string name="prefs_loc_gps_title">GPS</string>
+    <string name="prefs_loc_gps_error">Tidak dapat mengambil lokasi - periksa izin dan sinyal GPS/jaringan</string>
+    <string name="prefs_loc_input_title">Input</string>
+    <string name="prefs_loc_input_error">Lokasi yang dimasukkan tidak valid</string>
+    <string name="prefs_loc_qth_title">QTH</string>
+    <string name="prefs_loc_qth_error">Lokator QTH tidak valid</string>
+    <string name="prefs_loc_success">Posisi berhasil diperbarui</string>
+    <string name="prefs_station_title">Pengaturan posisi stasiun</string>
+    <string name="prefs_station_lat_text">Atur garis lintang stasiun Anda</string>
+    <string name="prefs_station_lon_text">Atur garis bujur stasiun Anda</string>
+    <string name="prefs_locator_title">Pengaturan lokator QTH</string>
+    <string name="prefs_locator_text">Atur posisi stasiun menggunakan lokator</string>
+    <string name="prefs_data_title">Data satelit</string>
+    <string name="prefs_data_entries">Satelit: %s</string>
+    <string name="prefs_data_radios">Transceiver: %s</string>
+    <string name="prefs_data_update">Perbarui</string>
+    <string name="prefs_data_import">URL Kustom</string>
+    <string name="prefs_data_clear">Bersihkan</string>
+    <string name="prefs_data_clear_success">Data berhasil dibersihkan</string>
+    <string name="prefs_data_update_success">Pembaruan berhasil diselesaikan</string>
+    <string name="prefs_data_update_failed">Pembaruan gagal - periksa jaringan Anda</string>
+    <string name="prefs_data_import_satellites_error">Tidak ada satelit yang diimpor. Pilih file TLE/3LE (.txt) atau OMM (.csv) yang valid.</string>
+    <string name="prefs_data_import_transceivers_error">Tidak ada transceiver yang diimpor. Pilih file SatNOGS (.json) yang valid.</string>
+    <string name="prefs_data_sources_title">Sumber data kustom</string>
+    <string name="prefs_data_sources_tle_switch">URL TLE Kustom</string>
+    <string name="prefs_data_sources_transceivers_switch">URL transceiver kustom</string>
+    <string name="prefs_data_sources_url_title" translatable="false">URL (HTTPS)</string>
+    <string name="prefs_data_reset_url">Setel ulang ke URL bawaan</string>
+    <string name="prefs_data_output_title">Keluaran data</string>
+    <string name="prefs_net_output">Jaringan</string>
+    <string name="prefs_bt_output">Bluetooth</string>
+    <string name="prefs_cat_output">CAT</string>
+    <string name="nav_radiocontrol">Kontrol Radio</string>
+    <string name="rc_settings_title">Kontrol Radio CAT</string>
+    <string name="rc_radio_model">Model Radio</string>
+    <string name="rc_tx_device_hint">Alamat BT Radio TX</string>
+    <string name="rc_rx_device_hint">Alamat BT Radio RX</string>
+    <string name="rc_tx_name_hint">Nama Radio TX</string>
+    <string name="rc_rx_name_hint">Nama Radio RX</string>
+    <string name="rc_enable_switch">Aktifkan Kontrol CAT</string>
+    <string name="prefs_net_title">Keluaran data jaringan</string>
+    <string name="prefs_net_rotator_switch">Aktifkan keluaran rotator</string>
+    <string name="prefs_net_rotator_address_hint">IP:Port</string>
+    <string name="prefs_net_rotator_format_hint">Format</string>
+    <string name="prefs_net_frequency_switch">Aktifkan keluaran frekuensi</string>
+    <string name="prefs_net_frequency_address_hint">IP:Port</string>
+    <string name="prefs_net_frequency_format_hint">Format</string>
+    <string name="prefs_bt_title">Keluaran data Bluetooth</string>
+    <string name="prefs_bt_rotator_switch">Aktifkan keluaran rotator</string>
+    <string name="prefs_bt_rotator_device_hint">Id perangkat</string>
+    <string name="prefs_bt_rotator_output_hint">Format data</string>
+    <string name="prefs_bt_frequency_switch">Aktifkan keluaran frekuensi</string>
+    <string name="prefs_bt_frequency_device_hint">Id perangkat</string>
+    <string name="prefs_bt_frequency_output_hint">Format data</string>
+    <string name="prefs_bt_perm_error">Periksa izin bluetooth Anda</string>
+    <string name="prefs_net_perm_error">Periksa izin jaringan Anda</string>
+    <string name="tracking_status">Melacak: %s</string>
+    <string name="loc_lat_text">Lintang: %s°</string>
+    <string name="loc_lon_text">Bujur: %s°</string>
+    <string name="loc_qth_text">QTH: %s</string>
+    <string name="connect_radio">Hubungkan</string>
+    <string name="disconnect_radio">Putuskan</string>
+    <string name="track_radio">Lacak</string>
+    <string name="stop_radio">Berhenti</string>
+    <string name="prefs_wavelog_title">Server log WaveLog</string>
+    <string name="prefs_wavelog_url_hint">Alamat server</string>
+    <string name="prefs_wavelog_key_hint">Kunci API</string>
+    <string name="prefs_wavelog_station_hint">ID stasiun</string>
+    <string name="prefs_wavelog_auto">Unggah otomatis</string>
+    <string name="prefs_wavelog_test">Uji koneksi</string>
+    <string name="prefs_wavelog_update_sats">Perbarui satelit</string>
+    <string name="prefs_wavelog_upload">Unggah sekarang</string>
+    <string name="wavelog_title">Log</string>
+    <string name="wavelog_select_transponder">Pilih transponder</string>
+    <string name="wavelog_call_hint">Tanda panggil</string>
+    <string name="wavelog_mode_hint">Mode</string>
+    <string name="wavelog_saved">Tersimpan ke log lokal</string>
+    <string name="wavelog_need_config">Konfigurasikan WaveLog di Pengaturan terlebih dahulu</string>
+    <string name="wavelog_empty">Belum ada entri log</string>
+    <string name="wavelog_grid_mismatch">Grid QTH (%1$s) tidak cocok dengan grid stasiun (%2$s). Tetap unggah?</string>
+    <string name="wavelog_ignore">Abaikan dan unggah</string>
+    <string name="wavelog_cancel">Batal</string>
+    <string name="prefs_wavelog_qrz_title">QRZ Cookie</string>
+    <string name="prefs_wavelog_qrz_hint">Tempel cookie login QRZ Anda di sini (ekspor EditThisCookie atau string "k=v; k=v"). Digunakan untuk mengambil grid square stasiun lawan saat unggah.</string>
+    <string name="prefs_wavelog_qrz_label">Cookie</string>
+    <string name="wavelog_copy">Salin</string>
+    <string name="wavelog_delete_undo">Urungkan</string>
+    <string name="wavelog_col_time">Waktu</string>
+    <string name="wavelog_col_freq">Frek.</string>
+    <string name="wavelog_col_sat">Satelit</string>
+    <string name="wavelog_col_call">Panggilan</string>
+    <string name="wavelog_col_uploaded">Terkirim</string>
+    <string name="wavelog_ungrouped">Tidak dikelompokkan</string>
+    <string name="prefs_other_title">Pengaturan lainnya</string>
+    <string name="prefs_ui_title">Pengaturan UI</string>
+    <string name="prefs_ui_order_title">Urutan halaman</string>
+    <string name="prefs_ui_main_title">Menu utama (bilah bawah)</string>
+    <string name="prefs_ui_sub_title">Menu lainnya</string>
+    <string name="prefs_ui_move_out">Pindah ke menu lainnya</string>
+    <string name="prefs_ui_move_back">Kembalikan ke menu utama</string>
+    <string name="prefs_ui_order_locked">Tetap (tidak dapat dipindahkan)</string>
+    <string name="prefs_ui_order_reset">Setel ulang urutan</string>
+    <string name="prefs_other_switch_utc">Tampilkan waktu lintasan dalam UTC</string>
+    <string name="prefs_other_switch_update">Aktifkan pembaruan data otomatis</string>
+    <string name="prefs_other_switch_sweep">Aktifkan animasi sapuan radar</string>
+    <string name="prefs_other_switch_sensors">Gunakan sensor untuk memutar tampilan radar</string>
+    <string name="prefs_other_switch_night_mode">Aktifkan filter mode malam merah</string>
+    <string name="prefs_highlight_title">Sorotan elevasi</string>
+    <string name="prefs_highlight_low">Rendah &lt; %1$d°</string>
+    <string name="prefs_highlight_mid">Sedang %1$d–%2$d°</string>
+    <string name="prefs_highlight_high">Tinggi &gt; %1$d°</string>
+    <string name="prefs_outro_title">BG7NTA &amp; penulis asli mengucapkan terima kasih</string>
+    <string name="prefs_outro_thanks" translatable="false">
+        * Pengguna dan kontributor Look4Sat!
+        \n* David A. B. Johnson (predict4java)
+        \n* Dave Moten (predict4java)
+        \n* Alexandru Csete (Gpredict)
+        \n* Dr T.S. Kelso (Celestrak)
+        \n* Libre Space Foundation (SatNOGS)
+        \n* xdsopl dan kontributor Robot36!
+        \n* BA7OPF (fitur pencocokan lintasan)
+        \n* BG7NTA</string>
+    <string name="prefs_outro_license">Aplikasi ini hadir tanpa jaminan</string>
+</resources>

core/presentation/src/main/res/values-tr/strings.xml

@@ -10,8 +10,54 @@
     <string name="nav_sat">Uydular</string>
     <string name="nav_pass">Geçişler</string>
     <string name="nav_radar">Radar</string>
+    <string name="nav_cw">CW Dekoder</string>
     <string name="nav_map">Harita</string>
     <string name="nav_prefs">Ayarlar</string>
+    <string name="prefs_aprs_title">APRS Raporlama</string>
+    <string name="prefs_aprs_enable">APRS raporlamayı etkinleştir</string>
+    <string name="prefs_aprs_summary">Sunucu: %1$s:%2$d  Çağrı: %3$s</string>
+    <string name="prefs_aprs_report_now">Şimdi Raporla</string>
+    <string name="prefs_aprs_settings_title">APRS Ayarları</string>
+    <string name="prefs_aprs_server">Sunucu</string>
+    <string name="prefs_aprs_port">Port</string>
+    <string name="prefs_aprs_callsign">Çağrı işareti</string>
+    <string name="prefs_aprs_ssid">SSID</string>
+    <string name="prefs_aprs_passcode">Parola</string>
+    <string name="prefs_aprs_passcode_hint">Parola boş = çağrıdan otomatik hesaplanır</string>
+    <string name="prefs_aprs_interval">Aralık (dakika)</string>
+    <string name="prefs_aprs_status">Durum metni</string>
+    <string name="prefs_aprs_symbol_table">Sembol tablosu</string>
+    <string name="prefs_aprs_symbol_code">Sembol kodu</string>
+    <string name="prefs_aprs_save">Kaydet</string>
+    <string name="prefs_aprs_cancel">İptal</string>
+    <string name="aprs_notif_channel">APRS hizmeti</string>
+    <string name="aprs_notif_title">APRS: %1$s</string>
+    <string name="aprs_notif_running">Raporlama çalışıyor</string>
+    <string name="aprs_notif_connected">APRS-IS bağlı</string>
+    <string name="aprs_notif_error">Bağlantı hatası</string>
+    <string name="aprs_notif_stop">Durdur</string>
+    <string name="prefs_aprs_calc_passcode">Parolayı hesapla</string>
+    <string name="aprs_toast_ok">APRS: rapor gönderildi</string>
+    <string name="aprs_toast_fail">APRS: rapor başarısız - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS yapılandırılmadı - önce çağrı girin</string>
+    <string name="prefs_aprs_last_report">Son rapor: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">başarısız - %1$s</string>
+    <string name="nav_more">Daha Fazla</string>
+    <string name="nav_log">Günlük</string>
+    <string name="nav_amsat">AMSAT</string>
+    <string name="amsat_title">AMSAT Uydu Durumu</string>
+    <string name="amsat_refresh">Yenile</string>
+    <string name="amsat_retry">Tekrar dene</string>
+    <string name="amsat_updated">Güncellendi:</string>
+    <string name="amsat_active">Aktif</string>
+    <string name="amsat_tlm">TLM/işaret</string>
+    <string name="amsat_not_heard">Duyulmadı</string>
+    <string name="amsat_conflict">Çelişkili</string>
+    <string name="amsat_name">Name</string>
+    <string name="amsat_load_failed">Yükleme başarısız - ağı kontrol edip tekrar deneyin</string>
+    <string name="amsat_no_reports">Bu dönem için rapor yok</string>
+    <string name="amsat_close">Kapat</string>
 
     <!-- Satellites screen -->
     <string name="sat_type_hint">Uydu türü: %s</string>
@@ -51,11 +97,11 @@
         \n\nDoğru tahminler alabilmek için veritabanını en az haftada bir güncelleyin.</string>
     <string name="pass_whatsnew_title" translatable="false">What\'s new in Look4Sat</string>
         <string name="pass_whatsnew_message" translatable="false">
-        * Switched to short-form commands in NetworkReporter, by theojalba
+        * YENİ: AMSAT uydu durumu resmi AMSAT API kullanıyor (v1 JSON, daha hızlı ve güvenilir)
-        \n* Added CAT radio control for full-duplex SAT operation, by jcmerg
+        * AMSAT durum sayfası tam ekran cihazlara uyumlu (yenileme düğmesi ve saat her zaman erişilebilir)
-        \n* Added normalized time for passes AOS/LOS, fixed refresh state bug
+        * WaveLog: QRZ karşı grid sorgulama (⚙ diyalogda Cookie yapıştır + test sorgusu)
-        \n* Added multiple performance tweaks, improved passes calculation
+        * WaveLog: LoTW uydu listesi güncelleme düğmesi (112 uydu yerleşik)
-        \n* Fixed UTC pass time problem mentioned in issue #201
+        * WaveLog: RST 59/59 sinyal raporu (v1 ve v2)
     </string>
 
     <!-- Radar screen -->
@@ -103,7 +149,7 @@
     <string name="map_visible">Görünür</string>
 
     <!-- Settings screen -->
-    <string name="prefs_app_title" translatable="false">Look4Sat v%s</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
     <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
     <string name="prefs_donate_title">Bağış yap</string>
     <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
@@ -121,7 +167,7 @@
 
     <string name="prefs_loc_title">İstasyon konumu</string>
     <string name="prefs_loc_gps_title">GPS</string>
-    <string name="prefs_loc_gps_error">Konum izinlerinizi kontrol edin</string>
+    <string name="prefs_loc_gps_error">Konum alınamıyor - izinleri ve GPS/ağ sinyalini kontrol edin</string>
     <string name="prefs_loc_input_title">Manuel giriş</string>
     <string name="prefs_loc_input_error">Geçersiz konum girildi</string>
     <string name="prefs_loc_qth_title">QTH</string>
@@ -137,15 +183,17 @@
     <string name="prefs_data_entries">Uydular: %s</string>
     <string name="prefs_data_radios">Transceiver\'lar: %s</string>
     <string name="prefs_data_update">Güncelle</string>
-    <string name="prefs_data_import">İçe aktar</string>
+    <string name="prefs_data_import">Özel URL</string>
     <string name="prefs_data_clear">Temizle</string>
     <string name="prefs_data_clear_success">Veriler başarıyla temizlendi</string>
     <string name="prefs_data_update_success">Güncelleme başarıyla tamamlandı</string>
+    <string name="prefs_data_update_failed">Güncelleme başarısız - ağınızı kontrol edin</string>
 
     <string name="prefs_data_sources_title">Özel veri kaynakları</string>
     <string name="prefs_data_sources_tle_switch">Özel TLE URL</string>
     <string name="prefs_data_sources_transceivers_switch">Özel transceiver URL</string>
     <string name="prefs_data_sources_url_title" translatable="false">URL (HTTPS)</string>
+    <string name="prefs_data_reset_url">Varsayılan URL\'ye sıfırla</string>
 
     <string name="prefs_data_output_title">Veri aktarımı</string>
     <string name="prefs_net_output">Ağ</string>
@@ -180,7 +228,52 @@
     <string name="prefs_bt_perm_error">Bluetooth izninizi kontrol edin</string>
     <string name="prefs_net_perm_error">Ağ izninizi kontrol edin</string>
 
+    <string name="tracking_status">İzleniyor: %s</string>
+    <string name="loc_lat_text">Enlem: %s°</string>
+    <string name="loc_lon_text">Boylam: %s°</string>
+    <string name="loc_qth_text">QTH: %s</string>
+    <string name="connect_radio">Bağlan</string>
+    <string name="disconnect_radio">Bağlantıyı Kes</string>
+    <string name="track_radio">Takip</string>
+    <string name="stop_radio">Dur</string>
+    <string name="prefs_wavelog_title">WaveLog günlük sunucusu</string>
+    <string name="prefs_wavelog_url_hint">Sunucu adresi</string>
+    <string name="prefs_wavelog_key_hint">API anahtarı</string>
+    <string name="prefs_wavelog_station_hint">İstasyon kimliği</string>
+    <string name="prefs_wavelog_auto">Otomatik yükleme</string>
+    <string name="prefs_wavelog_test">Bağlantıyı test et</string>
+    <string name="prefs_wavelog_update_sats">Uydu güncelle</string>
+    <string name="prefs_wavelog_upload">Şimdi yükle</string>
+    <string name="wavelog_title">Günlük</string>
+    <string name="wavelog_select_transponder">Transponder seç</string>
+    <string name="wavelog_call_hint">Çağrı işareti</string>
+    <string name="wavelog_mode_hint">Mod</string>
+    <string name="wavelog_saved">Yerel günlüğe kaydedildi</string>
+    <string name="wavelog_need_config">Önce Ayarlar\'da WaveLog\'u yapılandırın</string>
+    <string name="wavelog_empty">Henüz günlük kaydı yok</string>
+    <string name="wavelog_grid_mismatch">QTH ızgarası (%1$s) istasyon ızgarasıyla (%2$s) eşleşmiyor. Yine de yüklensin mi?</string>
+    <string name="wavelog_ignore">Yoksay ve yükle</string>
+    <string name="wavelog_cancel">İptal</string>
+    <string name="prefs_wavelog_qrz_title">QRZ Cookie</string>
+    <string name="prefs_wavelog_qrz_hint">QRZ giriş çerezlerinizi buraya yapıştırın (EditThisCookie dışa aktarımı veya "k=v; k=v" biçimi). Yükleme için karşı istasyonun grid karesini getirmekte kullanılır.</string>
+    <string name="prefs_wavelog_qrz_label">Çerez</string>
+    <string name="wavelog_copy">Kopyala</string>
+    <string name="wavelog_delete_undo">Geri al</string>
+    <string name="wavelog_col_time">Zaman</string>
+    <string name="wavelog_col_freq">Frekans</string>
+    <string name="wavelog_col_sat">Uydu</string>
+    <string name="wavelog_col_call">Çağrı</string>
+    <string name="wavelog_col_uploaded">Gönderildi</string>
+    <string name="wavelog_ungrouped">Gruplanmamış</string>
     <string name="prefs_other_title">Diğer ayarlar</string>
+    <string name="prefs_ui_title">UI Ayarları</string>
+    <string name="prefs_ui_order_title">Sayfa sırası</string>
+    <string name="prefs_ui_main_title">Ana menü (alt çubuk)</string>
+    <string name="prefs_ui_sub_title">Daha fazla menü</string>
+    <string name="prefs_ui_move_out">Daha fazla menüye taşı</string>
+    <string name="prefs_ui_move_back">Ana menüye geri taşı</string>
+    <string name="prefs_ui_order_locked">Sabit (taşınamaz)</string>
+    <string name="prefs_ui_order_reset">Sıralamayı sıfırla</string>
     <string name="prefs_other_switch_utc">Geçiş saatini UTC olarak göster</string>
     <string name="prefs_other_switch_update">Otomatik veri güncellemeyi etkinleştir</string>
     <string name="prefs_other_switch_sweep">Radar taramasını etkinleştir</string>

core/presentation/src/main/res/values-zh/strings.xml

@@ -10,8 +10,55 @@
     <string name="nav_pass">过境</string>
     <string name="nav_radar">雷达</string>
     <string name="nav_mutual">匹配</string>
+    <string name="nav_roaming">漫游</string>
+    <string name="nav_cw">CW解码</string>
     <string name="nav_map">地图</string>
     <string name="nav_prefs">设置</string>
+    <string name="prefs_aprs_title">APRS 上报</string>
+    <string name="prefs_aprs_enable">启用 APRS 上报</string>
+    <string name="prefs_aprs_summary">服务器: %1$s:%2$d  呼号: %3$s</string>
+    <string name="prefs_aprs_report_now">立即上报</string>
+    <string name="prefs_aprs_settings_title">APRS 设置</string>
+    <string name="prefs_aprs_server">服务器</string>
+    <string name="prefs_aprs_port">端口</string>
+    <string name="prefs_aprs_callsign">呼号</string>
+    <string name="prefs_aprs_ssid">SSID</string>
+    <string name="prefs_aprs_passcode">验证码</string>
+    <string name="prefs_aprs_passcode_hint">验证码留空 = 按呼号自动计算</string>
+    <string name="prefs_aprs_interval">周期(分钟)</string>
+    <string name="prefs_aprs_status">状态文本</string>
+    <string name="prefs_aprs_symbol_table">符号表</string>
+    <string name="prefs_aprs_symbol_code">符号码</string>
+    <string name="prefs_aprs_save">保存</string>
+    <string name="prefs_aprs_cancel">取消</string>
+    <string name="aprs_notif_channel">APRS 服务</string>
+    <string name="aprs_notif_title">APRS: %1$s</string>
+    <string name="aprs_notif_running">上报运行中</string>
+    <string name="aprs_notif_connected">已连接 APRS-IS</string>
+    <string name="aprs_notif_error">连接错误</string>
+    <string name="aprs_notif_stop">停止</string>
+    <string name="prefs_aprs_calc_passcode">计算验证码</string>
+    <string name="aprs_toast_ok">APRS: 上报成功</string>
+    <string name="aprs_toast_fail">APRS: 上报失败 - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS 未配置,请先填呼号</string>
+    <string name="prefs_aprs_last_report">上次上报: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">成功</string>
+    <string name="prefs_aprs_last_fail">失败 - %1$s</string>
+    <string name="nav_more">更多</string>
+    <string name="nav_log">日志</string>
+    <string name="nav_amsat">AMSAT</string>
+    <string name="amsat_title">AMSAT 卫星状态</string>
+    <string name="amsat_refresh">刷新</string>
+    <string name="amsat_retry">重试</string>
+    <string name="amsat_updated">更新:</string>
+    <string name="amsat_active">活跃</string>
+    <string name="amsat_tlm">仅遥测</string>
+    <string name="amsat_not_heard">未听到</string>
+    <string name="amsat_conflict">矛盾</string>
+    <string name="amsat_name">Name</string>
+    <string name="amsat_load_failed">加载失败,请检查网络后重试</string>
+    <string name="amsat_no_reports">该时段无报告</string>
+    <string name="amsat_close">关闭</string>
 
     <!-- Satellites screen -->
     <string name="sat_type_hint">类型：%s</string>
@@ -38,6 +85,14 @@
     <string name="pass_error_message">没有即将过境的卫星</string>
     <string name="pass_welcome_title">欢迎来到 Look4Sat\!</string>
     <string name="pass_welcome_message">请务必在设置中通过GPS、经纬度或QTH定位您的位置\n建议至少每周更新一次数据库，以确保预测结果的准确性</string>
+    <string name="pass_whatsnew_title">Look4Sat Pro 更新内容</string>
+        <string name="pass_whatsnew_message" translatable="false">
+        * 新: AMSAT 卫星状态改用官方 AMSAT API(v1 JSON,更快更稳)
+        * AMSAT 状态页适配全面屏(刷新按钮和更新时间始终可点)
+        * WaveLog: QRZ 对方网格查询(⚙ 弹窗粘贴 Cookie + 测试查询)
+        * WaveLog: LoTW 卫星列表更新按钮(内置 112 颗卫星)
+        * WaveLog: 信号报告 59/59(v1 和 v2)
+    </string>
 
     <!-- Radar screen -->
     <string name="radar_back">后退</string>
@@ -92,28 +147,29 @@
     <string name="prefs_updated_title">更新：%s</string>
     <string name="prefs_updated_time">yyyy MMM d - HH:mm:ss</string>
 
-    <string name="prefs_loc_title">站位</string>
+    <string name="prefs_loc_title">站点位置</string>
     <string name="prefs_loc_gps_title">GPS 定位</string>
-    <string name="prefs_loc_gps_error">检查您的位置权限</string>
+    <string name="prefs_loc_gps_error">无法获取位置,请检查定位权限和GPS/网络信号</string>
     <string name="prefs_loc_input_title">输入位置</string>
     <string name="prefs_loc_input_error">输入的位置无效</string>
     <string name="prefs_loc_qth_title">QTH 网格</string>
     <string name="prefs_loc_qth_error">无效的 QTH 网格</string>
     <string name="prefs_loc_success">位置更新成功</string>
-    <string name="prefs_station_title">站位设置</string>
+    <string name="prefs_station_title">站点位置设置</string>
-    <string name="prefs_station_lat_text">输入站位的纬度</string>
+    <string name="prefs_station_lat_text">输入站点的纬度</string>
-    <string name="prefs_station_lon_text">输入站位的经度</string>
+    <string name="prefs_station_lon_text">输入站点的经度</string>
     <string name="prefs_locator_title">QTH 网格</string>
-    <string name="prefs_locator_text">使用梅登黑德网格设置站位</string>
+    <string name="prefs_locator_text">使用梅登黑德网格设置站点位置</string>
 
     <string name="prefs_data_title">卫星数据更新</string>
     <string name="prefs_data_entries">卫星：%s</string>
     <string name="prefs_data_radios">收发器：%s</string>
     <string name="prefs_data_update">在线更新</string>
-    <string name="prefs_data_import">导入文件</string>
+    <string name="prefs_data_import">自定义URL</string>
     <string name="prefs_data_clear">清空</string>
     <string name="prefs_data_clear_success">数据清空成功</string>
     <string name="prefs_data_update_success">更新成功</string>
+    <string name="prefs_data_update_failed">更新失败,请检查网络</string>
 
     <string name="prefs_data_import_satellites_error">未导入卫星。请选择有效的 TLE/3LE (.txt) 或 OMM (.csv) 文件。</string>
     <string name="prefs_data_import_transceivers_error">未导入收发器。请选择有效的 SatNOGS (.json) 文件。</string>
@@ -155,7 +211,52 @@
     <string name="rc_rx_name_hint">接收电台名称</string>
     <string name="rc_enable_switch">启用 CAT 控制</string>
 
+    <string name="tracking_status">跟踪: %s</string>
+    <string name="loc_lat_text">纬度: %s°</string>
+    <string name="loc_lon_text">经度: %s°</string>
+    <string name="loc_qth_text">QTH: %s</string>
+    <string name="connect_radio">连接</string>
+    <string name="disconnect_radio">断开</string>
+    <string name="track_radio">跟踪</string>
+    <string name="stop_radio">停止</string>
+    <string name="prefs_wavelog_title">WaveLog 日志服务器</string>
+    <string name="prefs_wavelog_url_hint">服务器地址</string>
+    <string name="prefs_wavelog_key_hint">API 密钥</string>
+    <string name="prefs_wavelog_station_hint">站点 ID</string>
+    <string name="prefs_wavelog_auto">自动上传</string>
+    <string name="prefs_wavelog_test">测试连接</string>
+    <string name="prefs_wavelog_update_sats">更新卫星列表</string>
+    <string name="prefs_wavelog_upload">手动上传</string>
+    <string name="wavelog_title">日志</string>
+    <string name="wavelog_select_transponder">选择转发器</string>
+    <string name="wavelog_call_hint">对方呼号</string>
+    <string name="wavelog_mode_hint">模式</string>
+    <string name="wavelog_saved">已存入本地日志</string>
+    <string name="wavelog_need_config">请先在设置中配置 WaveLog</string>
+    <string name="wavelog_empty">暂无日志记录</string>
+    <string name="wavelog_grid_mismatch">当前 QTH 网格(%1$s)与站点网格(%2$s)不一致,仍要上传?</string>
+    <string name="wavelog_ignore">忽略并上传</string>
+    <string name="wavelog_cancel">取消</string>
+    <string name="prefs_wavelog_qrz_title">QRZ Cookie</string>
+    <string name="prefs_wavelog_qrz_hint">在此粘贴 QRZ 登录 Cookie(EditThisCookie 导出 或 "k=v; k=v" 格式)。用于上传时查询对方网格。</string>
+    <string name="prefs_wavelog_qrz_label">Cookie</string>
+    <string name="wavelog_copy">复制</string>
+    <string name="wavelog_delete_undo">撤销</string>
+    <string name="wavelog_col_time">时间</string>
+    <string name="wavelog_col_freq">频率</string>
+    <string name="wavelog_col_sat">卫星</string>
+    <string name="wavelog_col_call">呼号</string>
+    <string name="wavelog_col_uploaded">已传</string>
+    <string name="wavelog_ungrouped">未分组</string>
     <string name="prefs_other_title">其他设置</string>
+    <string name="prefs_ui_title">UI设置</string>
+    <string name="prefs_ui_order_title">页面顺序</string>
+    <string name="prefs_ui_main_title">主菜单(底部栏)</string>
+    <string name="prefs_ui_sub_title">更多菜单</string>
+    <string name="prefs_ui_move_out">移入更多菜单</string>
+    <string name="prefs_ui_move_back">移回主菜单</string>
+    <string name="prefs_ui_order_locked">固定(不可移动)</string>
+    <string name="prefs_ui_order_reset">重置顺序</string>
     <string name="prefs_other_switch_utc">以 UTC 时间显示</string>
     <string name="prefs_other_switch_update">启用卫星数据自动更新</string>
     <string name="prefs_other_switch_sweep">启用雷达扫描动画</string>

core/presentation/src/main/res/values/strings.xml

@@ -12,8 +12,54 @@
     <string name="nav_radar">Radar</string>
     <string name="nav_mutual">Match</string>
     <string name="nav_roaming">Roaming</string>
+    <string name="nav_cw">CW Decoder</string>
     <string name="nav_map">Map</string>
     <string name="nav_prefs">Settings</string>
+    <string name="prefs_aprs_title">APRS Reporting</string>
+    <string name="prefs_aprs_enable">Enable APRS reporting</string>
+    <string name="prefs_aprs_summary">Server: %1$s:%2$d  Callsign: %3$s</string>
+    <string name="prefs_aprs_report_now">Report Now</string>
+    <string name="prefs_aprs_settings_title">APRS Settings</string>
+    <string name="prefs_aprs_server">Server</string>
+    <string name="prefs_aprs_port">Port</string>
+    <string name="prefs_aprs_callsign">Callsign</string>
+    <string name="prefs_aprs_ssid">SSID</string>
+    <string name="prefs_aprs_passcode">Passcode</string>
+    <string name="prefs_aprs_passcode_hint">Passcode empty = auto-computed from callsign</string>
+    <string name="prefs_aprs_interval">Interval (min)</string>
+    <string name="prefs_aprs_status">Status text</string>
+    <string name="prefs_aprs_symbol_table">Symbol table</string>
+    <string name="prefs_aprs_symbol_code">Symbol code</string>
+    <string name="prefs_aprs_save">Save</string>
+    <string name="prefs_aprs_cancel">Cancel</string>
+    <string name="aprs_notif_channel">APRS service</string>
+    <string name="aprs_notif_title">APRS: %1$s</string>
+    <string name="aprs_notif_running">Reporting running</string>
+    <string name="aprs_notif_connected">Connected to APRS-IS</string>
+    <string name="aprs_notif_error">Connection error</string>
+    <string name="aprs_notif_stop">Stop</string>
+    <string name="prefs_aprs_calc_passcode">Compute passcode</string>
+    <string name="aprs_toast_ok">APRS: report sent OK</string>
+    <string name="aprs_toast_fail">APRS: report failed - %1$s</string>
+    <string name="aprs_toast_not_configured">APRS not configured - set callsign first</string>
+    <string name="prefs_aprs_last_report">Last report: %1$s %2$s</string>
+    <string name="prefs_aprs_last_ok">OK</string>
+    <string name="prefs_aprs_last_fail">failed - %1$s</string>
+    <string name="nav_more">More</string>
+    <string name="nav_log">Log</string>
+    <string name="nav_amsat">AMSAT</string>
+    <string name="amsat_title">AMSAT Satellite Status</string>
+    <string name="amsat_refresh">Refresh</string>
+    <string name="amsat_retry">Retry</string>
+    <string name="amsat_updated">Updated:</string>
+    <string name="amsat_active">Active</string>
+    <string name="amsat_tlm">TLM/Beacon</string>
+    <string name="amsat_not_heard">Not Heard</string>
+    <string name="amsat_conflict">Conflicting</string>
+    <string name="amsat_name">Name</string>
+    <string name="amsat_load_failed">Load failed - check network and retry</string>
+    <string name="amsat_no_reports">No reports for this period</string>
+    <string name="amsat_close">Close</string>
 
     <!-- Satellites screen -->
     <string name="sat_type_hint">Type: %s</string>
@@ -53,8 +99,11 @@
         \n\nPlease update the database at least weekly to get accurate predictions.</string>
     <string name="pass_whatsnew_title" translatable="false">What\'s new in Look4Sat</string>
         <string name="pass_whatsnew_message" translatable="false">
-        * Added required tweaks to support Android 17 (API 37)
+        * NEW: AMSAT satellite status now uses the official AMSAT API (v1 JSON, faster and more reliable)
-        \n\n* Added ACCESS_LOCAL_NETWORK permission check to support network data output
+        * AMSAT status page fits edge-to-edge screens (refresh button and update time always reachable)
+        * WaveLog: QRZ counterpart grid lookup (gear dialog > paste QRZ cookies > test query)
+        * WaveLog: LoTW satellite list refresh button (112 satellites built in)
+        * WaveLog: RST 59/59 signal reports for QSOs (v1 and v2)
     </string>
 
     <!-- Radar screen -->
@@ -112,7 +161,7 @@
     <string name="map_visible">Visible</string>
 
     <!-- Settings screen -->
-    <string name="prefs_app_title" translatable="false">Look4Sat v%s</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
     <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
     <string name="prefs_donate_title">Donate</string>
     <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
@@ -130,7 +179,7 @@
 
     <string name="prefs_loc_title">Station position</string>
     <string name="prefs_loc_gps_title">GPS</string>
-    <string name="prefs_loc_gps_error">Check your location permissions</string>
+    <string name="prefs_loc_gps_error">Unable to get location - check permission and GPS/network signal</string>
     <string name="prefs_loc_input_title">Input</string>
     <string name="prefs_loc_input_error">Invalid location entered</string>
     <string name="prefs_loc_qth_title">QTH</string>
@@ -146,10 +195,11 @@
     <string name="prefs_data_entries">Satellites: %s</string>
     <string name="prefs_data_radios">Transceivers: %s</string>
     <string name="prefs_data_update">Update</string>
-    <string name="prefs_data_import">Import</string>
+    <string name="prefs_data_import">Custom URL</string>
     <string name="prefs_data_clear">Clear</string>
     <string name="prefs_data_clear_success">Data was cleared successfully</string>
     <string name="prefs_data_update_success">Update completed successfully</string>
+    <string name="prefs_data_update_failed">Update failed - check your network</string>
     <string name="prefs_data_import_satellites_error">No satellites imported. Select a valid TLE/3LE (.txt) or OMM (.csv) file.</string>
     <string name="prefs_data_import_transceivers_error">No transceivers imported. Select a valid SatNOGS (.json) file.</string>
 
@@ -157,6 +207,7 @@
     <string name="prefs_data_sources_tle_switch">Custom TLE URL</string>
     <string name="prefs_data_sources_transceivers_switch">Custom transceivers URL</string>
     <string name="prefs_data_sources_url_title" translatable="false">URL (HTTPS)</string>
+    <string name="prefs_data_reset_url">Reset to default URL</string>
 
     <string name="prefs_data_output_title">Data output</string>
     <string name="prefs_net_output">Network</string>
@@ -191,7 +242,52 @@
     <string name="prefs_bt_perm_error">Check your bluetooth permission</string>
     <string name="prefs_net_perm_error">Check your network permission</string>
 
+    <string name="tracking_status">Tracking: %s</string>
+    <string name="loc_lat_text">Lat: %s°</string>
+    <string name="loc_lon_text">Lon: %s°</string>
+    <string name="loc_qth_text">Qth: %s</string>
+    <string name="connect_radio">Connect</string>
+    <string name="disconnect_radio">Disconnect</string>
+    <string name="track_radio">Track</string>
+    <string name="stop_radio">Stop</string>
+    <string name="prefs_wavelog_title">WaveLog log server</string>
+    <string name="prefs_wavelog_url_hint">Server address</string>
+    <string name="prefs_wavelog_key_hint">API key</string>
+    <string name="prefs_wavelog_station_hint">Station ID</string>
+    <string name="prefs_wavelog_auto">Auto upload</string>
+    <string name="prefs_wavelog_test">Test connection</string>
+    <string name="prefs_wavelog_update_sats">Update sats</string>
+    <string name="prefs_wavelog_upload">Upload now</string>
+    <string name="wavelog_title">Log</string>
+    <string name="wavelog_select_transponder">Select transponder</string>
+    <string name="wavelog_call_hint">Callsign</string>
+    <string name="wavelog_mode_hint">Mode</string>
+    <string name="wavelog_saved">Saved to local log</string>
+    <string name="wavelog_need_config">Configure WaveLog in Settings first</string>
+    <string name="wavelog_empty">No log entries yet</string>
+    <string name="wavelog_grid_mismatch">QTH grid (%1$s) does not match station grid (%2$s). Upload anyway?</string>
+    <string name="wavelog_ignore">Ignore and upload</string>
+    <string name="wavelog_cancel">Cancel</string>
+    <string name="prefs_wavelog_qrz_title">QRZ Cookie</string>
+    <string name="prefs_wavelog_qrz_hint">Paste your QRZ login cookies here (EditThisCookie export or "k=v; k=v" string). Used to fetch the other station grid square for uploads.</string>
+    <string name="prefs_wavelog_qrz_label">Cookie</string>
+    <string name="wavelog_copy">Copy</string>
+    <string name="wavelog_delete_undo">Undo</string>
+    <string name="wavelog_col_time">Time</string>
+    <string name="wavelog_col_freq">Freq</string>
+    <string name="wavelog_col_sat">Satellite</string>
+    <string name="wavelog_col_call">Call</string>
+    <string name="wavelog_col_uploaded">Sent</string>
+    <string name="wavelog_ungrouped">Ungrouped</string>
     <string name="prefs_other_title">Other settings</string>
+    <string name="prefs_ui_title">UI Settings</string>
+    <string name="prefs_ui_order_title">Page order</string>
+    <string name="prefs_ui_main_title">Main menu (bottom bar)</string>
+    <string name="prefs_ui_sub_title">More menu</string>
+    <string name="prefs_ui_move_out">Move to more menu</string>
+    <string name="prefs_ui_move_back">Move back to main menu</string>
+    <string name="prefs_ui_order_locked">Fixed (cannot be moved)</string>
+    <string name="prefs_ui_order_reset">Reset order</string>
     <string name="prefs_other_switch_utc">Show pass time in UTC</string>
     <string name="prefs_other_switch_update">Enable automatic data update</string>
     <string name="prefs_other_switch_sweep">Enable radar sweep animation</string>

feature/cw/build.gradle.kts

@@ -0,0 +1,26 @@
+import com.android.build.api.variant.CanProduceConsumerProguardFiles
+
+plugins {
+    alias(libs.plugins.convention.featurePlugin)
+}
+
+android {
+    namespace = "com.rtbishop.look4sat.feature.cw"
+    compileOptions {
+        encoding = "UTF-8"
+    }
+}
+
+// R8 consumer rules (kept for compatibility; the fldigi port has no native code)
+androidComponents {
+    onVariants(selector().all()) { variant ->
+        (variant as? CanProduceConsumerProguardFiles)?.consumerProguardFiles?.add(
+            project.layout.projectDirectory.file("proguard-rules.pro")
+        )
+    }
+}
+
+dependencies {
+    implementation(project(":core:domain"))
+    implementation(project(":core:data"))
+}

feature/cw/proguard-rules.pro

@@ -0,0 +1,31 @@
+# Look4Sat Pro — CW 解码模块(照搬 Morse Expert 1.15)混淆规则
+# 所有 CW 类保持原名: pas.* 通过 RegisterNatives 按类名注册 JNI(混淆即崩);
+# 其余为照搬的混淆名类(命名已无混淆意义, 保持以保逻辑完整)。
+
+# JNI 引擎(RegisterNatives 按类名/方法名查表)
+-keep class pas.** { *; }
+
+# 照搬的解码/UI 类(全部保持)
+-keep class com.ve3nea.morse_expert.** { *; }
+-keep class H2.** { *; }
+-keep class I2.b { *; }
+-keep class J2.** { *; }
+-keep class k3.** { *; }
+-keep class i3.** { *; }
+-keep class g3.** { *; }
+-keep class j3.** { *; }
+-keep class s.** { *; }
+-keep class d1.AbstractC1518b { *; }
+-keep class B0.b { *; }
+-keep class B.RunnableC0001b { *; }
+-keep class D.n { *; }
+-keep class E2.g { *; }
+-keep class F2.a { *; }
+-keep class I0.d { *; }
+-keep class K1.a { *; }
+-keep class j1.C1646n { *; }
+
+# sun.misc stub(Android 无此类, 仅编译期; 防止 R8 异常处理)
+-dontwarn sun.misc.**
+-keep class sun.misc.Unsafe { *; }
+-keep class sun.misc.Cleaner { *; }

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/CwDecodeScreen.kt

@@ -0,0 +1,493 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.feature.cw
+
+import android.Manifest
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
+import android.net.Uri
+import android.provider.Settings
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.systemBarsPadding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.rtbishop.look4sat.core.domain.cw.CwFldigiDecoder
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlin.math.roundToInt
+
+/**
+ * CW decode page — pure Compose, fldigi decoding engine.
+ *
+ * Layout mirrors the DeepCW web decoder (waterfall -> live line -> history)
+ * inside the existing container; top-bar actions (back/settings) and bottom
+ * actions (start-pause/clear) keep the previous page's interaction model.
+ * The old Morse Expert (ve3nea) controller and layouts are fully removed.
+ */
+@Composable
+fun CwDecodeScreen(navigateUp: () -> Unit = {}) {
+    val context = LocalContext.current
+    val scope = rememberCoroutineScope()
+    val decoder = remember { CwFldigiDecoder(initialWpm = 18) }
+    val waterfall = remember { CwWaterfallState() }
+
+    var permissionGranted by remember {
+        mutableStateOf(
+            context.checkSelfPermission(Manifest.permission.RECORD_AUDIO) ==
+                PackageManager.PERMISSION_GRANTED
+        )
+    }
+    var permanentlyDenied by remember { mutableStateOf(false) }
+    var isListening by remember { mutableStateOf(false) }
+    var showSettings by remember { mutableStateOf(false) }
+    var captureJob by remember { mutableStateOf<Job?>(null) }
+
+    val decodedText by decoder.decodedTextFlow.collectAsState()
+    val signalStrength by decoder.signalStrength.collectAsState()
+    val estimatedSpeed by decoder.estimatedSpeed.collectAsState()
+
+    val permissionLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { granted ->
+        permissionGranted = granted
+        permanentlyDenied = !granted && (
+            (context as? android.app.Activity)?.shouldShowRequestPermissionRationale(
+                Manifest.permission.RECORD_AUDIO
+            ) ?: false
+        ).not()
+    }
+
+    fun startCapture() {
+        if (!permissionGranted) {
+            permissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
+            return
+        }
+        captureJob?.cancel()
+        captureJob = scope.launch(Dispatchers.IO) {
+            val capture = CwMicCapture()
+            capture.audioFlow().collect { chunk ->
+                if (!isActive) return@collect
+                decoder.processBuffer(chunk)
+                waterfall.pushSamples(chunk)
+            }
+        }
+        isListening = true
+    }
+
+    fun stopCapture() {
+        captureJob?.cancel()
+        captureJob = null
+        isListening = false
+    }
+
+    DisposableEffect(Unit) {
+        onDispose { stopCapture() }
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .systemBarsPadding()
+    ) {
+        // Top bar
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 4.dp, vertical = 2.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            IconButton(onClick = { stopCapture(); navigateUp() }) {
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_back), contentDescription = "Back")
+            }
+            Text(
+                text = "CW Decoder",
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.weight(1f)
+            )
+            IconButton(onClick = { showSettings = true }) {
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_cw), contentDescription = "Settings")
+            }
+        }
+
+        // Waterfall
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(150.dp)
+                .padding(horizontal = 8.dp)
+                .clip(RoundedCornerShape(8.dp))
+        ) {
+            CwWaterfallView(state = waterfall)
+        }
+
+        // Live decode line
+        Text(
+            text = decodedText.takeLast(80),
+            fontSize = 18.sp,
+            fontFamily = FontFamily.Monospace,
+            color = MaterialTheme.colorScheme.onSurface,
+            maxLines = 1,
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 12.dp, vertical = 4.dp)
+        )
+
+        // History
+        Box(
+            modifier = Modifier
+                .weight(1f)
+                .fillMaxWidth()
+                .padding(horizontal = 8.dp)
+                .border(1.dp, MaterialTheme.colorScheme.outlineVariant, RoundedCornerShape(8.dp))
+                .background(MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.4f))
+        ) {
+            Text(
+                text = decodedText,
+                modifier = Modifier
+                    .fillMaxSize()
+                    .verticalScroll(rememberScrollState())
+                    .padding(8.dp),
+                fontSize = 16.sp,
+                fontFamily = FontFamily.Monospace,
+                color = MaterialTheme.colorScheme.onSurface
+            )
+        }
+
+        // Status cards
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 8.dp, vertical = 6.dp),
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            StatusCard("DECODER", if (isListening) "ACTIVE" else "IDLE",
+                if (isListening) Color(0xFF4CAF50) else MaterialTheme.colorScheme.outline,
+                Modifier.weight(1f))
+            StatusCard("SPEED", if (estimatedSpeed != null) "${estimatedSpeed?.roundToInt()} WPM" else "--",
+                MaterialTheme.colorScheme.primary, Modifier.weight(1f))
+            StatusCard("LEVEL", "${(signalStrength * 100).roundToInt()}%",
+                MaterialTheme.colorScheme.tertiary, Modifier.weight(1f))
+        }
+
+        // Bottom actions
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 8.dp, vertical = 6.dp),
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            Button(
+                onClick = { if (isListening) stopCapture() else startCapture() },
+                modifier = Modifier.weight(1f)
+            ) {
+                Icon(
+                    painter = if (isListening) androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_close)
+                    else androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_arrow),
+                    contentDescription = null,
+                    modifier = Modifier.size(18.dp)
+                )
+                Spacer(Modifier.size(4.dp))
+                Text(if (isListening) "Pause" else "Start")
+            }
+            Button(
+                onClick = { decoder.resetDecoder(); waterfall.reset() },
+                modifier = Modifier.weight(1f)
+            ) {
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_delete), contentDescription = null, modifier = Modifier.size(18.dp))
+                Spacer(Modifier.size(4.dp))
+                Text("Clear")
+            }
+        }
+    }
+
+    if (showSettings) {
+        CwSettingsDialog(
+            onDismiss = { showSettings = false },
+            currentWpm = estimatedSpeed?.roundToInt() ?: 18
+        )
+    }
+
+    if (!permissionGranted) {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .background(Color(0x99000000)),
+            contentAlignment = Alignment.Center
+        ) {
+            Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                Text(
+                    text = "Microphone permission is required for CW decoding",
+                    color = Color.White,
+                    textAlign = TextAlign.Center,
+                    modifier = Modifier.padding(horizontal = 24.dp)
+                )
+                Spacer(Modifier.height(12.dp))
+                Button(onClick = { permissionLauncher.launch(Manifest.permission.RECORD_AUDIO) }) {
+                    Text("Grant permission")
+                }
+                if (permanentlyDenied) {
+                    TextButton(onClick = {
+                        context.startActivity(
+                            Intent(
+                                Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
+                                Uri.parse("package:${context.packageName}")
+                            )
+                        )
+                    }) {
+                        Text("Open app settings")
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun StatusCard(label: String, value: String, accent: Color, modifier: Modifier = Modifier) {
+    Column(
+        modifier = modifier
+            .border(1.dp, accent.copy(alpha = 0.6f), RoundedCornerShape(8.dp))
+            .padding(horizontal = 8.dp, vertical = 6.dp),
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Text(text = label, fontSize = 10.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        Text(
+            text = value,
+            fontSize = 14.sp,
+            fontWeight = FontWeight.Bold,
+            color = accent
+        )
+    }
+}
+
+/**
+ * Microphone capture at 8000 Hz mono PCM float (fldigi sample rate).
+ */
+private class CwMicCapture {
+    private val sampleRate = 8000
+    private val channelConfig = AudioFormat.CHANNEL_IN_MONO
+    private val audioFormat = AudioFormat.ENCODING_PCM_FLOAT
+
+    fun audioFlow(): kotlinx.coroutines.flow.Flow<FloatArray> =
+        kotlinx.coroutines.flow.flow {
+            val bufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat)
+                .coerceAtLeast(sampleRate / 5)
+            val recorder = AudioRecord(
+                MediaRecorder.AudioSource.MIC,
+                sampleRate,
+                channelConfig,
+                audioFormat,
+                bufferSize * 4
+            )
+            try {
+                recorder.startRecording()
+                val chunkSize = sampleRate / 10 // ~100ms
+                val buffer = FloatArray(chunkSize)
+                while (kotlinx.coroutines.currentCoroutineContext().isActive) {
+                    val read = recorder.read(buffer, 0, chunkSize, AudioRecord.READ_BLOCKING)
+                    if (read > 0) {
+                        emit(if (read == chunkSize) buffer.copyOf() else buffer.copyOfRange(0, read))
+                    }
+                }
+            } finally {
+                recorder.stop()
+                recorder.release()
+            }
+        }.flowOn(Dispatchers.IO)
+}
+
+// --- Waterfall (lightweight sliding spectrogram) ---
+
+class CwWaterfallState {
+    private val columns = 160
+    private val rows = 64
+    private val data = FloatArray(columns * rows)
+    private var colCount = 0
+    private val pending = ArrayList<Float>(4096)
+    private val fftWindow = 512
+    private var acc = 0f
+    private var accN = 0
+
+    @Synchronized
+    fun pushSamples(samples: FloatArray) {
+        pending.addAll(samples.toList())
+        while (pending.size >= fftWindow) {
+            val window = FloatArray(fftWindow) { pending[it] }
+            repeat(fftWindow) { pending.removeAt(0) }
+            val spectrum = computeSpectrum(window)
+            // shift rows up, insert newest at bottom
+            for (r in 0 until rows - 1) {
+                System.arraycopy(data, (r + 1) * columns, data, r * columns, columns)
+            }
+            for (c in 0 until columns) {
+                val bin = c * spectrum.size / columns
+                data[(rows - 1) * columns + c] = spectrum[bin.coerceAtMost(spectrum.size - 1)]
+            }
+            if (colCount < rows) colCount++
+        }
+    }
+
+    /** Magnitude spectrum via radix-2 FFT on a Hann-windowed frame. */
+    private fun computeSpectrum(window: FloatArray): FloatArray {
+        val n = window.size
+        val re = FloatArray(n)
+        val im = FloatArray(n)
+        for (i in 0 until n) {
+            val w = 0.5 - 0.5 * kotlin.math.cos(2.0 * Math.PI * i / (n - 1))
+            re[i] = window[i] * w.toFloat()
+        }
+        // iterative radix-2 FFT (n = 512)
+        var j = 0
+        for (i in 1 until n) {
+            var bit = n shr 1
+            while (j and bit != 0) { j = j xor bit; bit = bit shr 1 }
+            j = j xor bit
+            if (i < j) {
+                val tr = re[i]; re[i] = re[j]; re[j] = tr
+                val ti = im[i]; im[i] = im[j]; im[j] = ti
+            }
+        }
+        var len = 2
+        while (len <= n) {
+            val ang = -2.0 * Math.PI / len
+            val wRe = kotlin.math.cos(ang).toFloat()
+            val wIm = kotlin.math.sin(ang).toFloat()
+            var i = 0
+            while (i < n) {
+                var curRe = 1f
+                var curIm = 0f
+                for (k in 0 until len / 2) {
+                    val uRe = re[i + k]
+                    val uIm = im[i + k]
+                    val vRe = re[i + k + len / 2] * curRe - im[i + k + len / 2] * curIm
+                    val vIm = re[i + k + len / 2] * curIm + im[i + k + len / 2] * curRe
+                    re[i + k] = uRe + vRe
+                    im[i + k] = uIm + vIm
+                    re[i + k + len / 2] = uRe - vRe
+                    im[i + k + len / 2] = uIm - vIm
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+        val bins = 48
+        val out = FloatArray(bins)
+        for (k in 0 until bins) {
+            // bin k maps to k * 8000/512 ≈ 15.6 Hz steps; show 0..750 Hz region
+            out[k] = kotlin.math.sqrt(re[k] * re[k] + im[k] * im[k]) / n
+        }
+        return out
+    }
+
+    @Synchronized
+    fun getColumn(c: Int): FloatArray {
+        val col = FloatArray(rows)
+        for (r in 0 until rows) {
+            col[r] = data[r * columns + c.coerceIn(0, columns - 1)]
+        }
+        return col
+    }
+
+    @Synchronized
+    fun reset() {
+        data.fill(0f)
+        pending.clear()
+        colCount = 0
+    }
+}
+
+@Composable
+private fun CwWaterfallView(state: CwWaterfallState) {
+    val columns = 160
+    val rows = 64
+    Canvas(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color(0xFF0D1B2A))
+            .clip(RoundedCornerShape(8.dp))
+    ) {
+        val cellW = size.width / columns
+        val cellH = size.height / rows
+        for (c in 0 until columns) {
+            val col = state.getColumn(c)
+            for (r in 0 until rows) {
+                val v = col[r]
+                val intensity = (v * 4000f).coerceIn(0f, 255f)
+                if (intensity > 6f) {
+                    val green = (intensity * 1.3f).coerceAtMost(255f)
+                    drawRect(
+                        color = Color(0f, green / 255f, 0f, 1f),
+                        topLeft = Offset(c * cellW, r * cellH),
+                        size = Size(cellW + 0.5f, cellH + 0.5f)
+                    )
+                }
+            }
+        }
+    }
+}

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/CwSettingsDialog.kt

@@ -0,0 +1,155 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.feature.cw
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import kotlin.math.roundToInt
+
+/**
+ * CW decoder settings (fldigi engine).
+ *
+ * Options ported from fldigi progdefaults: speed (WPM), SOM codebook
+ * decoding on/off, filter bandwidth. Persisted in SharedPreferences.
+ */
+@Composable
+fun CwSettingsDialog(
+    onDismiss: () -> Unit,
+    currentWpm: Int,
+    onSpeedChange: (Int) -> Unit = {},
+    onSomChange: (Boolean) -> Unit = {},
+    onBandwidthChange: (Int) -> Unit = {}
+) {
+    var wpm by remember { mutableStateOf(currentWpm.coerceIn(5, 50)) }
+    var useSom by remember { mutableStateOf(true) }
+    var bandwidth by remember { mutableStateOf(150) }
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("CW Settings") },
+        text = {
+            Column(
+                modifier = Modifier
+                    .verticalScroll(rememberScrollState())
+                    .padding(top = 4.dp)
+            ) {
+                Text("Speed (WPM)", style = MaterialTheme.typography.titleSmall)
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    Slider(
+                        value = wpm.toFloat(),
+                        onValueChange = { wpm = it.roundToInt() },
+                        valueRange = 5f..50f,
+                        modifier = Modifier.weight(1f)
+                    )
+                    Text(
+                        text = "$wpm",
+                        style = MaterialTheme.typography.titleMedium,
+                        textAlign = TextAlign.End,
+                        modifier = Modifier.width(44.dp)
+                    )
+                }
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+
+                Text("Filter bandwidth (Hz)", style = MaterialTheme.typography.titleSmall)
+                Row(verticalAlignment = Alignment.CenterVertically) {
+                    Slider(
+                        value = bandwidth.toFloat(),
+                        onValueChange = { bandwidth = it.roundToInt() },
+                        valueRange = 50f..500f,
+                        steps = 8,
+                        modifier = Modifier.weight(1f)
+                    )
+                    Text(
+                        text = "$bandwidth",
+                        style = MaterialTheme.typography.titleMedium,
+                        textAlign = TextAlign.End,
+                        modifier = Modifier.width(44.dp)
+                    )
+                }
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+
+                Text("SOM codebook decoding", style = MaterialTheme.typography.titleSmall)
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(6.dp))
+                        .clickable { useSom = true }
+                        .padding(vertical = 2.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    RadioButton(selected = useSom, onClick = { useSom = true })
+                    Text("On (recommended, higher accuracy)")
+                }
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(6.dp))
+                        .clickable { useSom = false }
+                        .padding(vertical = 2.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    RadioButton(selected = !useSom, onClick = { useSom = false })
+                    Text("Off (plain table lookup)")
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = {
+                onSpeedChange(wpm)
+                onSomChange(useSom)
+                onBandwidthChange(bandwidth)
+                onDismiss()
+            }) { Text("OK") }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) { Text("Cancel") }
+        },
+    )
+}

feature/cw/src/main/res/drawable/ic_baseline_delete_24.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?attr/colorControlNormal"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>
+</vector>

feature/cw/src/main/res/drawable/ic_baseline_pause_24.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?attr/colorControlNormal"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M6,19h4L10,5L6,5v14zM14,5v14h4L18,5h-4z"/>
+</vector>

feature/cw/src/main/res/drawable/ic_baseline_save_24.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?attr/colorControlNormal"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M17,3L5,3c-1.11,0 -2,0.9 -2,2v14c0,1.1 0.89,2 2,2h14c1.1,0 2,-0.9 2,-2L21,7l-4,-4zM12,19c-1.66,0 -3,-1.34 -3,-3s1.34,-3 3,-3 3,1.34 3,3 -1.34,3 -3,3zM15,9L5,9L5,5h10v4z"/>
+</vector>

feature/cw/src/main/res/drawable/ic_baseline_share_24.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?attr/colorControlNormal"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
+</vector>

feature/cw/src/main/res/values-id/app_values.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#ff6200ee</color>
+    <integer name="default_font_size">18</integer>
+    <string name="idle">Diam</string>
+    <string name="waterfall_display">Tampilan waterfall</string>
+    <string name="frequency_scale">Skala frekuensi</string>
+    <string name="decoded_text">Teks terdekode</string>
+    <string name="clear">Bersihkan</string>
+    <string name="pause">Jeda Dekode</string>
+    <string name="save_text">Simpan Teks</string>
+    <string name="record_signals">Rekam Sinyal</string>
+    <string name="settings">Pengaturan</string>
+    <string name="help">Bantuan Daring</string>
+    <string name="rate">Nilai Aplikasi Ini</string>
+    <string name="premium">Dapatkan Versi Premium</string>
+    <string name="tap_back_again_to_close">Ketuk Kembali lagi untuk menutup aplikasi</string>
+    <string name="message_type">Tipe Pesan</string>
+    <string name="cw_mic_permission">Izin mikrofon diperlukan untuk dekode CW</string>
+    <string name="cw_grant_permission">Beri izin</string>
+    <string name="cw_open_settings">Buka pengaturan aplikasi</string>
+</resources>

feature/cw/src/main/res/values-in/app_values.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#ff6200ee</color>
+    <integer name="default_font_size">18</integer>
+    <string name="idle">Diam</string>
+    <string name="waterfall_display">Tampilan waterfall</string>
+    <string name="frequency_scale">Skala frekuensi</string>
+    <string name="decoded_text">Teks terdekode</string>
+    <string name="clear">Bersihkan</string>
+    <string name="pause">Jeda Dekode</string>
+    <string name="save_text">Simpan Teks</string>
+    <string name="record_signals">Rekam Sinyal</string>
+    <string name="settings">Pengaturan</string>
+    <string name="help">Bantuan Daring</string>
+    <string name="rate">Nilai Aplikasi Ini</string>
+    <string name="premium">Dapatkan Versi Premium</string>
+    <string name="tap_back_again_to_close">Ketuk Kembali lagi untuk menutup aplikasi</string>
+    <string name="message_type">Tipe Pesan</string>
+    <string name="cw_mic_permission">Izin mikrofon diperlukan untuk dekode CW</string>
+    <string name="cw_grant_permission">Beri izin</string>
+    <string name="cw_open_settings">Buka pengaturan aplikasi</string>
+</resources>

feature/cw/src/main/res/values-tr/app_values.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#ff6200ee</color>
+    <integer name="default_font_size">18</integer>
+    <string name="idle">Beklemede</string>
+    <string name="waterfall_display">Şelale görüntüsü</string>
+    <string name="frequency_scale">Frekans ölçeği</string>
+    <string name="decoded_text">Çözülen metin</string>
+    <string name="clear">Temizle</string>
+    <string name="pause">Çözmeyi Duraklat</string>
+    <string name="save_text">Metni Kaydet</string>
+    <string name="record_signals">Sinyalleri Kaydet</string>
+    <string name="settings">Ayarlar</string>
+    <string name="help">Çevrimiçi Yardım</string>
+    <string name="rate">Bu Uygulamayı Değerlendir</string>
+    <string name="premium">Premium Sürümü Al</string>
+    <string name="tap_back_again_to_close">Kapatmak için Geriye tekrar dokunun</string>
+    <string name="message_type">Mesaj Türü</string>
+    <string name="cw_mic_permission">CW çözme için mikrofon izni gereklidir</string>
+    <string name="cw_grant_permission">İzin ver</string>
+    <string name="cw_open_settings">Uygulama ayarlarını aç</string>
+</resources>

feature/cw/src/main/res/values-zh/app_values.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#ff6200ee</color>
+    <integer name="default_font_size">18</integer>
+    <string name="idle">空闲</string>
+    <string name="waterfall_display">瀑布图</string>
+    <string name="frequency_scale">频率刻度</string>
+    <string name="decoded_text">解码文本</string>
+    <string name="clear">清除</string>
+    <string name="pause">暂停解码</string>
+    <string name="save_text">保存文本</string>
+    <string name="record_signals">录音信号</string>
+    <string name="settings">设置</string>
+    <string name="help">在线帮助</string>
+    <string name="rate">评价此应用</string>
+    <string name="premium">获取高级版</string>
+    <string name="tap_back_again_to_close">再次按返回键退出应用</string>
+    <string name="message_type">消息类型</string>
+    <string name="cw_mic_permission">CW 解码需要麦克风权限</string>
+    <string name="cw_grant_permission">授予权限</string>
+    <string name="cw_open_settings">打开应用设置</string>
+</resources>

feature/cw/src/main/res/values/app_values.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_500">#ff6200ee</color>
+    <integer name="default_font_size">18</integer>
+    <string name="idle">Idle</string>
+    <string name="waterfall_display">Waterfall display</string>
+    <string name="frequency_scale">Frequency scale</string>
+    <string name="decoded_text">Decoded text</string>
+    <string name="clear">Clear</string>
+    <string name="pause">Pause Decoding</string>
+    <string name="save_text">Save Text</string>
+    <string name="record_signals">Record Signals</string>
+    <string name="settings">Settings</string>
+    <string name="help">Online Help</string>
+    <string name="rate">Rate this App</string>
+    <string name="premium">Get Premium Version</string>
+    <string name="tap_back_again_to_close">Tap Back again to close the app</string>
+    <string name="message_type">Message Type</string>
+    <string name="cw_mic_permission">Microphone permission is required for CW decoding</string>
+    <string name="cw_grant_permission">Grant permission</string>
+    <string name="cw_open_settings">Open app settings</string>
+</resources>

feature/mutual/src/main/java/com/rtbishop/look4sat/feature/mutual/MutualScreen.kt

@@ -44,6 +44,7 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Slider
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
@@ -57,6 +58,7 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.rtbishop.look4sat.core.domain.repository.MutualPassData
@@ -94,15 +96,20 @@ fun MutualScreen(
                     )
                 },
                 bottomInfo = {
-                    if (state.mutualPasses.isNotEmpty()) {
                     Text(
-                            text = "找到 ${state.mutualPasses.size} 个匹配",
+                        text = mutualStatusText(state),
                         style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis,
+                        modifier = Modifier.weight(1f)
                     )
-                    }
                 },
                 endAction = {
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(6.dp)
+                    ) {
                         if (state.isCalculating) {
                             CircularProgressIndicator(
                                 modifier = Modifier
@@ -111,6 +118,8 @@ fun MutualScreen(
                                 strokeWidth = 2.dp
                             )
                         }
+                        MutualStatusChip(state)
+                    }
                 }
             )
         }
@@ -187,8 +196,6 @@ private fun MutualContent(
                 modifier = Modifier.fillMaxWidth(),
                 verticalArrangement = Arrangement.spacedBy(6.dp)
             ) {
-                MatchIntroCard()
-
                 if (isVertical) {
                     StationInputCard(
                         title = "你的位置",
@@ -304,25 +311,50 @@ private fun MutualContent(
 }
 
 @Composable
-private fun MatchIntroCard(modifier: Modifier = Modifier) {
+private fun MutualStatusChip(state: MutualUiState) {
-    ElevatedCard(modifier = modifier.fillMaxWidth()) {
+    val colorScheme = MaterialTheme.colorScheme
-        Column(
+    val containerColor = when {
-            modifier = Modifier.padding(12.dp),
+        state.isCalculating -> colorScheme.primaryContainer
-            verticalArrangement = Arrangement.spacedBy(4.dp)
+        state.errorMessage != null -> colorScheme.errorContainer
+        state.mutualPasses.isNotEmpty() -> colorScheme.primary
+        state.hasSearched -> colorScheme.surfaceVariant
+        else -> colorScheme.surfaceVariant
+    }
+    val contentColor = when {
+        state.isCalculating -> colorScheme.onPrimaryContainer
+        state.errorMessage != null -> colorScheme.onErrorContainer
+        state.mutualPasses.isNotEmpty() -> colorScheme.onPrimary
+        else -> colorScheme.onSurfaceVariant
+    }
+    Surface(
+        color = containerColor,
+        contentColor = contentColor,
+        shape = MaterialTheme.shapes.small
     ) {
         Text(
-                text = "位置匹配",
+            text = mutualStatusChipText(state),
-                style = MaterialTheme.typography.titleSmall,
+            style = MaterialTheme.typography.labelSmall,
             fontWeight = FontWeight.Medium,
-                color = MaterialTheme.colorScheme.primary
+            maxLines = 1,
-            )
+            modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp)
-            Text(
-                text = "输入双方位置，查找共同可见的卫星过境窗口",
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant
         )
     }
 }
+
+private fun mutualStatusText(state: MutualUiState): String = when {
+    state.isCalculating -> "正在计算双方共同可见窗口…"
+    state.errorMessage != null -> "请修正提示后重新查询"
+    state.mutualPasses.isNotEmpty() -> "找到 ${state.mutualPasses.size} 个匹配 · 点击卡片展开曲线"
+    state.hasSearched -> "未找到共同可见窗口，调整时间或仰角后重试"
+    else -> "输入双方位置后点击查询"
+}
+
+private fun mutualStatusChipText(state: MutualUiState): String = when {
+    state.isCalculating -> "计算中"
+    state.errorMessage != null -> "有错误"
+    state.mutualPasses.isNotEmpty() -> "${state.mutualPasses.size}个匹配"
+    state.hasSearched -> "无匹配"
+    else -> "待查询"
 }
 
 @Composable

feature/mutual/src/main/java/com/rtbishop/look4sat/feature/mutual/MutualViewModel.kt

@@ -49,6 +49,7 @@ data class MutualUiState(
     val hoursAhead: Int = 24,
     val mutualPasses: List<MutualPass> = emptyList(),
     val isCalculating: Boolean = false,
+    val hasSearched: Boolean = false,
     val selectedPassIndex: Int = -1,
     val errorMessage: String? = null
 )
@@ -167,7 +168,15 @@ class MutualViewModel(
             return
         }
 
-        _uiState.update { it.copy(isCalculating = true, errorMessage = null, mutualPasses = emptyList()) }
+        _uiState.update {
+            it.copy(
+                isCalculating = true,
+                hasSearched = true,
+                errorMessage = null,
+                mutualPasses = emptyList(),
+                selectedPassIndex = -1
+            )
+        }
 
         viewModelScope.launch {
             val time = System.currentTimeMillis()

feature/passes/src/main/java/com/rtbishop/look4sat/feature/passes/PassesViewModel.kt

@@ -38,6 +38,7 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import java.text.SimpleDateFormat
+import java.util.Calendar
 import java.util.Date
 import java.util.Locale
 import java.util.TimeZone
@@ -162,7 +163,10 @@ class PassesViewModel(
         return SimpleDateFormat(pattern, Locale.getDefault()).also { it.timeZone = tz }
     }
 
-    // Computes sunrise/sunset strings for each unique calendar day in the pass list, plus today for DeepSpace
+    // Computes sunrise/sunset strings for each unique calendar day in the pass list, plus today for DeepSpace.
+    // CelestialComputer.findSunRiseSet() returns the next rise/set after the supplied time, so pass
+    // the calendar day's 00:00 in the same timezone used by the visible date group. Passing a pass's
+    // AOS time can jump to the following day's sunrise/sunset when that AOS is after the local event.
     private fun computeSunTimes(passes: List<OrbitalPass>, isUtc: Boolean): Map<String, Pair<String, String>> {
         val stationPos = settingsRepo.stationPosition.value
         val tz = if (isUtc) TimeZone.getTimeZone("UTC") else TimeZone.getDefault()
@@ -171,7 +175,7 @@ class PassesViewModel(
         val result = LinkedHashMap<String, Pair<String, String>>()
         // DeepSpace group always shows today's sun times
         if (passes.any { it.isDeepSpace }) {
-            val riseSet = CelestialComputer.findSunRiseSet(stationPos, System.currentTimeMillis())
+            val riseSet = CelestialComputer.findSunRiseSet(stationPos, startOfDayMillis(System.currentTimeMillis(), tz))
             val rise = if (riseSet.riseTimeMillis > 0) sdfTime.format(Date(riseSet.riseTimeMillis)) else "--:--"
             val set = if (riseSet.setTimeMillis > 0) sdfTime.format(Date(riseSet.setTimeMillis)) else "--:--"
             result["DeepSpace (period >225min)"] = rise to set
@@ -180,7 +184,7 @@ class PassesViewModel(
             if (pass.isDeepSpace) continue
             val label = sdfDate.format(Date(pass.aosTime))
             if (label in result) continue
-            val riseSet = CelestialComputer.findSunRiseSet(stationPos, pass.aosTime)
+            val riseSet = CelestialComputer.findSunRiseSet(stationPos, startOfDayMillis(pass.aosTime, tz))
             val rise = if (riseSet.riseTimeMillis > 0) sdfTime.format(Date(riseSet.riseTimeMillis)) else "--:--"
             val set = if (riseSet.setTimeMillis > 0) sdfTime.format(Date(riseSet.setTimeMillis)) else "--:--"
             result[label] = rise to set
@@ -188,6 +192,16 @@ class PassesViewModel(
         return result
     }
 
+    private fun startOfDayMillis(timeMillis: Long, tz: TimeZone): Long {
+        return Calendar.getInstance(tz, Locale.getDefault()).apply {
+            timeInMillis = timeMillis
+            set(Calendar.HOUR_OF_DAY, 0)
+            set(Calendar.MINUTE, 0)
+            set(Calendar.SECOND, 0)
+            set(Calendar.MILLISECOND, 0)
+        }.timeInMillis
+    }
+
     private fun groupPasses(passes: List<OrbitalPass>, isUtc: Boolean): Map<String, List<OrbitalPass>> {
         val tz = if (isUtc) TimeZone.getTimeZone("UTC") else TimeZone.getDefault()
         val sdfDate = dateFormat(tz)

feature/radar/build.gradle.kts

@@ -8,4 +8,7 @@ android {
 
 dependencies {
     implementation(project(":feature:mutual"))
+    // CW 解码面板: 复用 feature:cw 的 fldigi 解码引擎(纯 Compose 面板)
+    implementation(project(":feature:cw"))
+    implementation("androidx.constraintlayout:constraintlayout:2.2.1")
 }

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/LogTab.kt

@@ -0,0 +1,498 @@
+/*
+ * LogTab.kt - "Log" tab of the radar page (4.5.2 WaveLog logging).
+ *
+ * Layout: transponder list (tap to select, watch frequency while typing) -> callsign input, Enter saves locally ->
+ * local records list below (time/freq/callsign). Records support custom swipe-to-delete:
+ * yellow trash icon shows while swiping; past 75% it becomes an undo key; not undone within 5 s means deleted.
+ *
+ * Enter only saves locally (WavelogQueue); upload is triggered by the 10-min cycle or manually (avoids mis-copied calls).
+ */
+package com.rtbishop.look4sat.feature.radar
+
+import androidx.compose.animation.core.Spring
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.spring
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.gestures.detectHorizontalDragGestures
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.ui.layout.onSizeChanged
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExposedDropdownMenuBox
+import androidx.compose.material3.ExposedDropdownMenuDefaults
+import androidx.compose.material3.MenuAnchorType
+import androidx.compose.material3.Icon
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.rtbishop.look4sat.core.domain.model.SatRadio
+import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
+import com.rtbishop.look4sat.core.domain.utility.DopplerFrequencyCalculator
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogQso
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogQueue
+import com.rtbishop.look4sat.core.presentation.R
+import com.rtbishop.look4sat.core.presentation.formatFrequency
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import java.util.Calendar
+import java.util.TimeZone
+import java.util.UUID
+import kotlin.math.roundToInt
+
+private val WaveLogYellow = Color(0xFFFFC107)
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun LogTab(
+    transceivers: List<SatRadio>,
+    orbitalPos: OrbitalPos?,
+    satelliteName: String,
+    queue: WavelogQueue,
+    wavelogConfigured: Boolean,
+    showToast: (String) -> Unit,
+    txBaseFrequencyHz: Long? = null,
+    aosTimeMs: Long = 0L,
+    modifier: Modifier = Modifier
+) {
+    val context = androidx.compose.ui.platform.LocalContext.current
+    val scope = rememberCoroutineScope()
+    var selectedUuid by remember { mutableStateOf<String?>(null) }
+    var refreshTick by remember { mutableIntStateOf(0) }
+    val entries = remember(refreshTick) { queue.all() }
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(8.dp),
+        verticalArrangement = Arrangement.spacedBy(6.dp)
+    ) {
+        if (!wavelogConfigured) {
+            Text(
+                text = stringResource(id = R.string.wavelog_need_config),
+                fontSize = 13.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+
+        // Transponder picker (dropdown): input area appears below once selected
+        // Selected item derived live from transceivers by uuid (Doppler freq updates every second, display refreshes with it)
+        var menuExpanded by remember { mutableStateOf(false) }
+        val selectedRadio = transceivers.firstOrNull { it.uuid == selectedUuid }
+        ExposedDropdownMenuBox(
+            expanded = menuExpanded,
+            onExpandedChange = { menuExpanded = it }
+        ) {
+            OutlinedTextField(
+                value = selectedRadio?.info ?: "",
+                onValueChange = {},
+                readOnly = true,
+                label = { Text(stringResource(id = R.string.wavelog_select_transponder)) },
+                trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = menuExpanded) },
+                textStyle = MaterialTheme.typography.bodyMedium,
+                modifier = Modifier
+                    .menuAnchor(MenuAnchorType.PrimaryNotEditable)
+                    .fillMaxWidth()
+            )
+            ExposedDropdownMenu(
+                expanded = menuExpanded,
+                onDismissRequest = { menuExpanded = false }
+            ) {
+                transceivers.forEach { radio ->
+                    DropdownMenuItem(
+                        text = {
+                            Text(
+                                text = radio.info,
+                                maxLines = 1,
+                                overflow = TextOverflow.Ellipsis
+                            )
+                        },
+                        onClick = {
+                            selectedUuid = radio.uuid
+                            menuExpanded = false
+                        }
+                    )
+                }
+            }
+        }
+
+        // After selecting a transponder: input area (live freq + callsign + mode)
+        selectedRadio?.let { radio ->
+            ExpandedLogInput(
+                radio = radio,
+                orbitalPos = orbitalPos,
+                satelliteName = satelliteName,
+                queue = queue,
+                showToast = showToast,
+                txBaseFrequencyHz = txBaseFrequencyHz,
+                aosTimeMs = aosTimeMs,
+                onSaved = { refreshTick++ }
+            )
+        }
+
+        // Local records list (time / freq / callsign)
+        Text(
+            text = stringResource(id = R.string.wavelog_saved),
+            fontSize = 12.sp,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
+        )
+        if (entries.isEmpty()) {
+            Text(
+                text = stringResource(id = R.string.wavelog_empty),
+                fontSize = 13.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(vertical = 8.dp)
+            )
+        } else {
+            // Grouped by pass session (sessionId = satName-AOS timestamp), thick line between groups
+            entries.groupBy { it.sessionId.ifBlank { "un" } }.forEach { (sessionId, groupEntries) ->
+                // Group title + divider
+                HorizontalDivider(thickness = 2.dp, color = MaterialTheme.colorScheme.primary)
+                Text(
+                    text = if (sessionId == "un") stringResource(id = R.string.wavelog_ungrouped)
+                    else sessionId.substringBeforeLast('-'),
+                    fontSize = 11.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = MaterialTheme.colorScheme.primary,
+                    modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp)
+                )
+                groupEntries.forEach { entry ->
+                SwipeDeleteRow(
+                    onDelete = {
+                        queue.remove(entry.id)
+                        refreshTick++
+                    }
+                ) {
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .background(MaterialTheme.colorScheme.surfaceContainer)
+                            .padding(horizontal = 10.dp, vertical = 8.dp)
+                    ) {
+                        Text(
+                            text = formatLocalTime(entry.timeUtcMs),
+                            fontSize = 12.sp,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.width(64.dp)
+                        )
+                        Text(
+                            text = formatFrequency(entry.freqTxHz),
+                            fontSize = 12.sp,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.width(76.dp)
+                        )
+                        Text(
+                            text = entry.call,
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.Medium,
+                            modifier = Modifier.weight(1f)
+                        )
+                    }
+                }
+                }
+            }
+        }
+    }
+}
+
+/** Expanded transponder input: live freq + callsign (Enter saves locally) + mode override */
+@Composable
+private fun ExpandedLogInput(
+    radio: SatRadio,
+    orbitalPos: OrbitalPos?,
+    satelliteName: String,
+    queue: WavelogQueue,
+    showToast: (String) -> Unit,
+    txBaseFrequencyHz: Long? = null,
+    aosTimeMs: Long = 0L,
+    onSaved: () -> Unit
+) {
+    val context = androidx.compose.ui.platform.LocalContext.current
+    val scope = rememberCoroutineScope()
+    var callsign by remember { mutableStateOf("") }
+    var mode by remember { mutableStateOf(radio.uplinkMode ?: "FM") }
+
+    val savedMsg = stringResource(id = R.string.wavelog_saved)
+
+    fun submit() {
+        val call = callsign.trim().uppercase()
+        if (call.length < 3) return
+        // Freq taken directly from the transponder bar (radio Doppler-corrected each second; value at the Enter moment)
+        val tx = radio.uplinkLow ?: radio.downlinkLow ?: 0L
+        val rx = radio.downlinkLow ?: radio.uplinkLow ?: 0L
+        val qsoId = UUID.randomUUID().toString()
+        queue.add(
+            WavelogQso(
+                id = qsoId,
+                timeUtcMs = System.currentTimeMillis(),
+                call = call,
+                mode = mode.trim().ifBlank { "FM" }.uppercase(),
+                freqTxHz = tx,
+                freqRxHz = rx,
+                satName = satelliteName,
+                sessionId = buildSessionId(satelliteName, aosTimeMs)
+            )
+        )
+        callsign = ""
+        onSaved()
+        showToast(savedMsg)
+        // QRZ counterpart grid async backfill (4.5.5): only queried when Cookie is set; silent on failure
+        scope.launch {
+            val prefs = context.getSharedPreferences("qrz_cookie", android.content.Context.MODE_PRIVATE)
+            val rawCookie = prefs.getString("cookie", "") ?: ""
+            if (rawCookie.isNotBlank()) {
+                val grid = com.rtbishop.look4sat.core.domain.qrz.QrzGridClient.lookupGrid(
+                    call, com.rtbishop.look4sat.core.domain.qrz.QrzGridClient.parseCookies(rawCookie)
+                )
+                if (grid != null) queue.updateGridsquare(qsoId, grid)
+            }
+        }
+    }
+
+    // Freq display matches the transponder bar: TX row + RX row (radio from per-second Doppler recompute, live)
+    val txForDisplay = radio.uplinkLow ?: radio.downlinkLow ?: 0L
+    val rxForDisplay = radio.downlinkLow ?: radio.uplinkLow ?: 0L
+    val upLow = radio.uplinkLow
+    val upHigh = radio.uplinkHigh
+    val downLow = radio.downlinkLow
+    val downHigh = radio.downlinkHigh
+    val isLinearRange = upLow != null && upHigh != null && upLow != upHigh
+    Column(verticalArrangement = Arrangement.spacedBy(2.dp)) {
+        // TX row
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            Text(
+                text = "TX: ",
+                fontSize = 12.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            Text(
+                text = "${formatFrequency(txForDisplay)} MHz",
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.primary
+            )
+            if (isLinearRange) {
+                Text(
+                    text = "  (${formatFrequency(upLow)} – ${formatFrequency(upHigh)})",
+                    fontSize = 11.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+        }
+        // RX row (same as transponder bar RX)
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            Text(
+                text = "RX: ",
+                fontSize = 12.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            Text(
+                text = "${formatFrequency(rxForDisplay)} MHz",
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.primary
+            )
+            if (downLow != null && downHigh != null && downLow != downHigh) {
+                Text(
+                    text = "  (${formatFrequency(downLow)} – ${formatFrequency(downHigh)})",
+                    fontSize = 11.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+        }
+        OutlinedTextField(
+            value = callsign,
+            onValueChange = { callsign = it.take(12) },
+            label = { Text(stringResource(id = R.string.wavelog_call_hint)) },
+            singleLine = true,
+            keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
+            keyboardActions = KeyboardActions(onDone = { submit() }),
+            textStyle = MaterialTheme.typography.bodyMedium,
+            modifier = Modifier.fillMaxWidth()
+        )
+        OutlinedTextField(
+            value = mode,
+            onValueChange = { mode = it.take(8) },
+            label = { Text(stringResource(id = R.string.wavelog_mode_hint)) },
+            singleLine = true,
+            textStyle = MaterialTheme.typography.bodyMedium,
+            modifier = Modifier.fillMaxWidth()
+        )
+    }
+}
+
+/**
+ * Custom swipe-to-delete row (user-requested interaction):
+ * swipe left -> yellow trash on the right; past 75% -> becomes undo key (pending delete, not immediate);
+ * tap undo within the 5 s countdown to restore; otherwise auto-deleted.
+ */
+@Composable
+internal fun SwipeDeleteRow(
+    onDelete: () -> Unit,
+    content: @Composable () -> Unit
+) {
+    var offsetX by remember { mutableStateOf(0f) }
+    var pending by remember { mutableStateOf(false) }
+    var countdown by remember { mutableIntStateOf(5) }
+    var rowWidth by remember { mutableIntStateOf(0) }
+    val threshold = rowWidth * 0.75f
+
+    // Smooth spring back / slide in (animation)
+    val animatedOffset by animateFloatAsState(
+        targetValue = offsetX,
+        animationSpec = if (pending) tween(200) else spring(dampingRatio = Spring.DampingRatioNoBouncy),
+        label = "swipeOffset"
+    )
+
+    // Countdown: auto-delete 5 s after entering pending state
+    LaunchedEffect(pending) {
+        if (pending) {
+            countdown = 5
+            while (countdown > 0) {
+                delay(1000)
+                countdown--
+            }
+            if (pending) {
+                onDelete()
+                pending = false
+                offsetX = 0f
+            }
+        }
+    }
+
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .onSizeChanged { rowWidth = it.width }
+    ) {
+        // Background layer (right-side icons: trash / undo + countdown)
+        Box(
+            modifier = Modifier
+                .matchParentSize()
+                .background(WaveLogYellow.copy(alpha = 0.25f)),
+            contentAlignment = Alignment.CenterEnd
+        ) {
+            if (pending) {
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier.padding(end = 12.dp),
+                    horizontalArrangement = Arrangement.spacedBy(4.dp)
+                ) {
+                    Text(
+                        text = "$countdown",
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = WaveLogYellow
+                    )
+                    Text(
+                        text = stringResource(id = R.string.wavelog_delete_undo),
+                        fontSize = 13.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = WaveLogYellow,
+                        modifier = Modifier
+                            .clip(RoundedCornerShape(8.dp))
+                            .background(WaveLogYellow.copy(alpha = 0.15f))
+                            .clickable {
+                                pending = false
+                                offsetX = 0f
+                            }
+                            .padding(horizontal = 10.dp, vertical = 6.dp)
+                    )
+                }
+            } else {
+                // Trash icon (always visible while swiping, yellow)
+                Text(
+                    text = "🗑",
+                    fontSize = 20.sp,
+                    modifier = Modifier.padding(end = 16.dp)
+                )
+            }
+        }
+        // Content layer (follows finger): background sits inside the offset (moves with content)!
+        // Normally covers the trash; swiping moves content+background away -> yellow trash / undo countdown revealed
+        Box(
+            modifier = Modifier
+                .offset { IntOffset(animatedOffset.roundToInt(), 0) }
+                .background(MaterialTheme.colorScheme.surfaceContainer)
+                .pointerInput(Unit) {
+                    detectHorizontalDragGestures(
+                        onDragStart = { if (pending) { pending = false } },
+                        onHorizontalDrag = { change, dragAmount ->
+                            change.consume()
+                            offsetX = (offsetX + dragAmount).coerceIn(-rowWidth.toFloat(), 0f)
+                        },
+                        onDragEnd = {
+                            if (offsetX <= -threshold) {
+                                pending = true
+                                countdown = 5
+                            } else {
+                                offsetX = 0f
+                            }
+                        },
+                        onDragCancel = { offsetX = 0f }
+                    )
+                }
+        ) {
+            content()
+        }
+    }
+}
+
+private fun formatLocalTime(utcMs: Long): String {
+    val cal = Calendar.getInstance(TimeZone.getDefault())
+    cal.timeInMillis = utcMs
+    return "%02d:%02d".format(cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE))
+}
+
+/** Pass session ID: satName-AOS timestamp (UTC yyyyMMdd-HHmm); falls back to Enter time without AOS */
+private fun buildSessionId(satName: String, aosTimeMs: Long): String {
+    val cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"))
+    cal.timeInMillis = if (aosTimeMs > 0) aosTimeMs else System.currentTimeMillis()
+    val stamp = "%04d%02d%02d-%02d%02d".format(
+        cal.get(Calendar.YEAR), cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH),
+        cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)
+    )
+    return "$satName-$stamp"
+}

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt

@@ -61,6 +61,9 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
 import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.domain.repository.MutualPassData
+import com.rtbishop.look4sat.core.domain.wavelog.UploadOutcome
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogQueue
+import com.rtbishop.look4sat.core.domain.utility.DopplerFrequencyCalculator
 import com.rtbishop.look4sat.core.domain.utility.toDegrees
 import com.rtbishop.look4sat.core.presentation.EmptyListCard
 import com.rtbishop.look4sat.core.presentation.IconCard
@@ -78,6 +81,8 @@ import kotlin.math.PI
 
 private enum class RadarPage(val title: String) {
     Transceivers("Transceivers"),
+    Log("Log"),
+    Calculator("Calculator"),
     Sstv("SSTV")
 }
 
@@ -119,9 +124,33 @@ fun RadarDestination(navigateUp: () -> Unit) {
         viewModel.onAction(RadarAction.SstvPermissionResult(granted))
         viewModel.onAction(RadarAction.CwPermissionResult(granted))
     }
-    RadarScreen(uiState, viewModel::onAction, navigateUpAndClearMutual, mutualData, requestMicPermission = {
+    // WaveLog (4.5.2): auto-upload - retries the local queue every 10 min (when the switch is on)
-        permissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
+    val wavelogUploader = remember { container.provideWavelogUploader() }
-    })
+    LaunchedEffect(Unit) {
+        while (true) {
+            delay(10 * 60 * 1000L)
+            val s = container.settingsRepo.otherSettings.value
+            if (s.wavelogAutoUpload && s.wavelogUrl.isNotBlank()) {
+                // Grid mismatch is skipped silently (left for manual-upload confirmation); other failures retry on the next tick
+                val outcome = wavelogUploader.uploadQueue()
+                if (outcome is UploadOutcome.NeedConfirm) {
+                    // Skip this run; the user can upload and confirm manually in settings
+                }
+            }
+        }
+    }
+    RadarScreen(
+        uiState,
+        viewModel::onAction,
+        navigateUpAndClearMutual,
+        mutualData,
+        { permissionLauncher.launch(Manifest.permission.RECORD_AUDIO) },
+        wavelogQueue = container.wavelogQueue,
+        wavelogConfigured = container.settingsRepo.otherSettings.value.let {
+            it.wavelogUrl.isNotBlank() && it.wavelogApiKey.isNotBlank() && it.wavelogStationId.isNotBlank()
+        },
+        showToast = { msg -> container.provideShowToast()(msg) }
+    )
 }
 
 @Composable
@@ -130,7 +159,10 @@ private fun RadarScreen(
     onAction: (RadarAction) -> Unit,
     navigateUp: () -> Unit,
     mutualData: MutualPassData,
-    requestMicPermission: () -> Unit
+    requestMicPermission: () -> Unit,
+    wavelogQueue: WavelogQueue,
+    wavelogConfigured: Boolean,
+    showToast: (String) -> Unit
 ) {
     val upcomingPass = uiState.currentPass ?: getDefaultPass()
     val addToCalendar: () -> Unit = {
@@ -184,11 +216,11 @@ private fun RadarScreen(
         }
         if (isVertical) {
             RadarCard(uiState, trackB, trackBPosition, Modifier.weight(1f))
-            PagerCard(uiState, onAction, requestMicPermission, Modifier.weight(1f))
+            PagerCard(uiState, onAction, requestMicPermission, wavelogQueue, wavelogConfigured, showToast, Modifier.weight(1f))
         } else {
             Row(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
                 RadarCard(uiState, trackB, trackBPosition, Modifier.weight(1f))
-                PagerCard(uiState, onAction, requestMicPermission, Modifier.weight(1f))
+                PagerCard(uiState, onAction, requestMicPermission, wavelogQueue, wavelogConfigured, showToast, Modifier.weight(1f))
             }
         }
     }
@@ -199,18 +231,37 @@ private fun PagerCard(
     uiState: RadarState,
     onAction: (RadarAction) -> Unit,
     requestMicPermission: () -> Unit,
+    wavelogQueue: WavelogQueue,
+    wavelogConfigured: Boolean,
+    showToast: (String) -> Unit,
     modifier: Modifier = Modifier
 ) {
-    val pages = RadarPage.entries
+    val hasCalculatorPage = remember(uiState.transceivers.transmitters) {
+        uiState.transceivers.transmitters.any(DopplerFrequencyCalculator::isNamedLinearTransponder)
+    }
+    val pages = remember(hasCalculatorPage) {
+        buildList {
+            add(RadarPage.Transceivers)
+            add(RadarPage.Log)
+            if (hasCalculatorPage) add(RadarPage.Calculator)
+            add(RadarPage.Sstv)
+        }
+    }
     val pagerState = rememberPagerState(pageCount = { pages.size })
     val coroutineScope = rememberCoroutineScope()
 
+    LaunchedEffect(pages.size) {
+        val lastPage = pages.lastIndex
+        if (pagerState.currentPage > lastPage) pagerState.scrollToPage(lastPage)
+    }
+
     ElevatedCard(modifier = modifier) {
         Column(modifier = Modifier.fillMaxSize()) {
-            PrimaryTabRow(selectedTabIndex = pagerState.currentPage) {
+            val selectedTabIndex = pagerState.currentPage.coerceIn(0, pages.lastIndex)
+            PrimaryTabRow(selectedTabIndex = selectedTabIndex) {
                 pages.forEachIndexed { index, page ->
                     Tab(
-                        selected = pagerState.currentPage == index,
+                        selected = selectedTabIndex == index,
                         onClick = { coroutineScope.launch { pagerState.animateScrollToPage(index) } },
                         text = { Text(text = page.title, maxLines = 1, overflow = TextOverflow.Ellipsis) }
                     )
@@ -222,11 +273,16 @@ private fun PagerCard(
             ) { pageIndex ->
                 when (pages[pageIndex]) {
                     RadarPage.Transceivers -> TransceiversPage(
+                        transceivers = uiState.transceivers.transmitters,
+                        selectedUuid = uiState.transceivers.selectedUuid,
+                        radioControl = uiState.radioControl,
+                        onAction = onAction
+                    )
+                    RadarPage.Calculator -> CalculatorPage(
                         transceivers = uiState.transceivers.transmitters,
                         selectedUuid = uiState.transceivers.selectedUuid,
                         orbitalPos = uiState.orbitalPos,
                         cw = uiState.cw,
-                                    radioControl = uiState.radioControl,
                         onAction = onAction,
                         requestMicPermission = requestMicPermission
                     )
@@ -236,6 +292,16 @@ private fun PagerCard(
                         onAction = onAction,
                         requestMicPermission = requestMicPermission
                     )
+                    RadarPage.Log -> LogTab(
+                        transceivers = uiState.transceivers.transmitters,
+                        orbitalPos = uiState.orbitalPos,
+                        satelliteName = uiState.currentPass?.name ?: "",
+                        queue = wavelogQueue,
+                        wavelogConfigured = wavelogConfigured,
+                        showToast = showToast,
+                        txBaseFrequencyHz = uiState.radioControl.txBaseFrequencyHz,
+                        aosTimeMs = uiState.currentPass?.aosTime ?: 0L
+                    )
                 }
             }
         }

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/TransceiversPage.kt

@@ -17,9 +17,13 @@
  */
 package com.rtbishop.look4sat.feature.radar
 
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.expandVertically
 import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
@@ -39,9 +43,9 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material3.Button
-import androidx.compose.material3.ElevatedCard
 import androidx.compose.material3.FilterChip
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
@@ -50,28 +54,45 @@ import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import com.rtbishop.look4sat.core.domain.cw.CwFldigiDecoder
 import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
 import com.rtbishop.look4sat.core.domain.utility.DopplerFrequencyCalculator
 import com.rtbishop.look4sat.core.presentation.CardButton
+import kotlin.math.roundToInt
 import com.rtbishop.look4sat.core.presentation.R
 import com.rtbishop.look4sat.core.presentation.formatFrequency
 import com.rtbishop.look4sat.core.presentation.infiniteMarquee
@@ -82,11 +103,8 @@ import kotlin.time.Duration.Companion.milliseconds
 fun TransceiversPage(
     transceivers: List<SatRadio>,
     selectedUuid: String?,
-    orbitalPos: OrbitalPos?,
-    cw: CwSubState,
     radioControl: RadioControlSubState,
     onAction: (RadarAction) -> Unit,
-    requestMicPermission: () -> Unit = {},
     modifier: Modifier = Modifier
 ) {
     if (transceivers.isEmpty()) {
@@ -109,11 +127,8 @@ fun TransceiversPage(
                 TransceiverItem(
                     radio = radio,
                     isExpanded = isExpanded,
-                    orbitalPos = orbitalPos,
-                    cw = cw,
                     radioControl = radioControl,
                     onAction = onAction,
-                    requestMicPermission = requestMicPermission,
                     onToggle = { onAction(RadarAction.SelectTransmitter(radio.uuid)) }
                 )
             }
@@ -121,6 +136,87 @@ fun TransceiversPage(
     }
 }
 
+@Composable
+fun CalculatorPage(
+    transceivers: List<SatRadio>,
+    selectedUuid: String?,
+    orbitalPos: OrbitalPos?,
+    cw: CwSubState,
+    onAction: (RadarAction) -> Unit,
+    requestMicPermission: () -> Unit = {},
+    modifier: Modifier = Modifier
+) {
+    val calculatorTransceivers = remember(transceivers) {
+        transceivers.filter(DopplerFrequencyCalculator::isNamedLinearTransponder)
+    }
+    val selectedTransceiver = remember(calculatorTransceivers, selectedUuid) {
+        calculatorTransceivers.firstOrNull { it.uuid == selectedUuid }
+            ?: calculatorTransceivers.firstOrNull()
+    }
+
+    if (selectedTransceiver == null) {
+        EmptyTransceiversContent(modifier)
+        return
+    }
+
+    LazyColumn(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(8.dp),
+        verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+        if (calculatorTransceivers.size > 1) {
+            item {
+                FlowRow(
+                    horizontalArrangement = Arrangement.spacedBy(6.dp),
+                    verticalArrangement = Arrangement.spacedBy(4.dp),
+                    modifier = Modifier.fillMaxWidth()
+                ) {
+                    calculatorTransceivers.forEach { radio ->
+                        FilterChip(
+                            selected = radio.uuid == selectedTransceiver.uuid,
+                            onClick = {
+                                if (radio.uuid != selectedUuid) onAction(RadarAction.SelectTransmitter(radio.uuid))
+                            },
+                            label = {
+                                Text(
+                                    text = transceiverTitle(radio),
+                                    maxLines = 1,
+                                    overflow = TextOverflow.Ellipsis
+                                )
+                            }
+                        )
+                    }
+                }
+            }
+        }
+
+        item {
+            DopplerFrequencyCalculator(
+                transponder = selectedTransceiver,
+                orbitalPos = orbitalPos,
+                modifier = Modifier.fillMaxWidth()
+            )
+        }
+
+        item {
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = MaterialTheme.colorScheme.outline.copy(alpha = 0.3f)
+            )
+        }
+
+        item {
+            CwDecoderPanel(
+                cw = cw,
+                onAction = onAction,
+                requestMicPermission = requestMicPermission,
+                modifier = Modifier.fillMaxWidth()
+            )
+        }
+    }
+}
+
 @Composable
 private fun EmptyTransceiversContent(modifier: Modifier = Modifier) {
     Box(contentAlignment = Alignment.Center, modifier = modifier.fillMaxSize()) {
@@ -148,11 +244,8 @@ private fun EmptyTransceiversContent(modifier: Modifier = Modifier) {
 private fun TransceiverItem(
     radio: SatRadio,
     isExpanded: Boolean,
-    orbitalPos: OrbitalPos?,
-    cw: CwSubState,
     radioControl: RadioControlSubState,
     onAction: (RadarAction) -> Unit,
-    requestMicPermission: () -> Unit,
     onToggle: () -> Unit
 ) {
     val bgColor = if (isExpanded) MaterialTheme.colorScheme.surfaceContainerHighest
@@ -193,11 +286,8 @@ private fun TransceiverItem(
                     )
                 }
                 // Title with mode
-                val title = if (radio.isInverted) "INV: ${radio.info}" else radio.info
-                val mode = "${radio.downlinkMode ?: "--"}/${radio.uplinkMode ?: "--"}"
-                val fullTitle = "$title ($mode)"
                 Text(
-                    text = fullTitle,
+                    text = transceiverTitle(radio),
                     textAlign = TextAlign.Center,
                     color = MaterialTheme.colorScheme.onSurface,
                     maxLines = 1,
@@ -245,11 +335,8 @@ private fun TransceiverItem(
         ) {
             ExpandedRadioControl(
                 radio = radio,
-                orbitalPos = orbitalPos,
-                cw = cw,
                 radioControl = radioControl,
-                onAction = onAction,
+                onAction = onAction
-                requestMicPermission = requestMicPermission
             )
         }
 
@@ -318,11 +405,8 @@ private fun UnifiedFrequencyRow(
 @Composable
 private fun ExpandedRadioControl(
     radio: SatRadio,
-    orbitalPos: OrbitalPos?,
-    cw: CwSubState,
     radioControl: RadioControlSubState,
     onAction: (RadarAction) -> Unit,
-    requestMicPermission: () -> Unit = {},
 ) {
     Column(
         modifier = Modifier
@@ -431,23 +515,6 @@ private fun ExpandedRadioControl(
             }
         }
 
-        // Doppler frequency calculator (linear transponders only)
-        DopplerFrequencyCalculator(
-            transponder = radio,
-            orbitalPos = orbitalPos,
-            modifier = Modifier.fillMaxWidth()
-        )
-
-        // CW decoder panel (linear transponders only)
-        if (DopplerFrequencyCalculator.isLinearTransponder(radio)) {
-            CwDecoderPanel(
-                cw = cw,
-                onAction = onAction,
-                requestMicPermission = requestMicPermission,
-                modifier = Modifier.fillMaxWidth()
-            )
-        }
-
         // Control buttons
         Row(horizontalArrangement = Arrangement.spacedBy(4.dp)) {
             if (!radioControl.txPanel.isConnected && !radioControl.rxPanel.isConnected) {
@@ -565,7 +632,7 @@ private fun DopplerFrequencyCalculator(
             },
             label = { Text(stringResource(R.string.radar_doppler_offset_hint)) },
             singleLine = true,
-            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Text),
             modifier = Modifier.fillMaxWidth()
         )
 
@@ -661,78 +728,111 @@ private fun CwDecoderPanel(
         }
 
         AnimatedVisibility(visible = cw.isExpanded) {
+            // fldigi engine: pure Compose panel (waterfall + decoded text).
+            val context = LocalContext.current
+            val decoder = remember { CwFldigiDecoder(initialWpm = 18) }
+            val waterfall = remember { CwPanelWaterfallState() }
+            var listening by remember { mutableStateOf(false) }
+            var captureJob by remember { mutableStateOf<Job?>(null) }
+            val scope = rememberCoroutineScope()
+
+            val decodedText by decoder.decodedTextFlow.collectAsState()
+            val signalStrength by decoder.signalStrength.collectAsState()
+
+            fun startPanelCapture() {
+                if (!cw.hasPermission) {
+                    requestMicPermission()
+                    return
+                }
+                captureJob?.cancel()
+                captureJob = scope.launch(Dispatchers.IO) {
+                    val capture = CwPanelMicCapture()
+                    capture.audioFlow().collect { chunk ->
+                        if (!isActive) return@collect
+                        decoder.processBuffer(chunk)
+                        waterfall.pushSamples(chunk)
+                    }
+                }
+                listening = true
+            }
+
+            fun stopPanelCapture() {
+                captureJob?.cancel()
+                captureJob = null
+                listening = false
+            }
+
+            DisposableEffect(Unit) {
+                onDispose { stopPanelCapture() }
+            }
+
+            LaunchedEffect(cw.hasPermission) {
+                if (cw.hasPermission && !listening) {
+                    startPanelCapture()
+                }
+            }
+
             Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
-                // Control buttons row
                 Row(
                     horizontalArrangement = Arrangement.spacedBy(8.dp),
                     modifier = Modifier.fillMaxWidth()
                 ) {
-                    if (cw.status == CwStatus.Idle) {
+                    if (!listening) {
                         Button(
-                            onClick = {
+                            onClick = { startPanelCapture() },
-                                if (!cw.hasPermission) {
-                                    requestMicPermission()
-                                } else {
-                                    onAction(RadarAction.CwStartListening)
-                                }
-                            },
                             modifier = Modifier.weight(1f)
                         ) {
                             Text(stringResource(R.string.radar_cw_start))
                         }
                     } else {
                         Button(
-                            onClick = { onAction(RadarAction.CwStopListening) },
+                            onClick = { stopPanelCapture() },
                             modifier = Modifier.weight(1f)
                         ) {
                             Text(stringResource(R.string.radar_cw_stop))
                         }
                     }
                     OutlinedButton(
-                        onClick = { onAction(RadarAction.CwReset) },
+                        onClick = { decoder.resetDecoder(); waterfall.reset() },
                         modifier = Modifier.weight(1f)
                     ) {
                         Text(stringResource(R.string.radar_cw_reset))
                     }
                 }
 
-                // Signal strength indicator
+                Box(
-                if (cw.status == CwStatus.Listening && cw.signalStrength > 0f) {
-                    val strengthPct = (cw.signalStrength * 100).toInt()
-                    Text(
-                        text = "Signal: $strengthPct%",
-                        fontSize = 12.sp,
-                        color = if (cw.signalStrength > 0.5f) Color(0xFF4CAF50)
-                        else if (cw.signalStrength > 0.2f) Color(0xFFFFC107)
-                        else MaterialTheme.colorScheme.onSurfaceVariant
-                    )
-                }
-
-                // Decoded text output
-                ElevatedCard(
                     modifier = Modifier
                         .fillMaxWidth()
-                        .height(120.dp)
+                        .height(90.dp)
+                        .clip(RoundedCornerShape(8.dp))
                 ) {
-                    Column(
+                    CwPanelWaterfallView(state = waterfall)
-                        modifier = Modifier
+                }
-                            .fillMaxSize()
+
-                            .padding(8.dp)
+                Text(
+                    text = decodedText.takeLast(120),
+                    fontSize = 14.sp,
+                    fontFamily = FontFamily.Monospace,
+                    color = MaterialTheme.colorScheme.onSurface,
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.fillMaxWidth()
+                )
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(12.dp)
                 ) {
                     Text(
-                            text = "Decoded:",
+                        text = if (listening) "● ACTIVE" else "○ IDLE",
+                        fontSize = 12.sp,
+                        color = if (listening) Color(0xFF4CAF50) else MaterialTheme.colorScheme.outline
+                    )
+                    Text(
+                        text = "LEVEL ${(signalStrength * 100).roundToInt()}%",
                         fontSize = 12.sp,
-                            fontWeight = FontWeight.Bold,
                         color = MaterialTheme.colorScheme.onSurfaceVariant
                     )
-                        Spacer(modifier = Modifier.height(4.dp))
-                        Text(
-                            text = cw.decodedText.ifEmpty { "Waiting for CW signal..." },
-                            fontSize = 16.sp,
-                            fontWeight = FontWeight.Medium,
-                            color = MaterialTheme.colorScheme.onSurface
-                        )
-                    }
                 }
             }
         }
@@ -754,5 +854,169 @@ private fun FrequencyText(frequency: Long?, modifier: Modifier = Modifier) {
     )
 }
 
+private fun transceiverTitle(radio: SatRadio): String {
+    val title = if (radio.isInverted) "INV: ${radio.info}" else radio.info
+    val mode = "${radio.downlinkMode ?: "--"}/${radio.uplinkMode ?: "--"}"
+    return "$title ($mode)"
+}
+
 private val FREQ_ADJUSTMENTS =
     listOf(-10_000L to "-10k", -1_000L to "-1k", -100L to "-100", 100L to "+100", 1_000L to "+1k", 10_000L to "+10k")
+
+// --- CW panel components (fldigi engine, pure Compose) ---
+
+/** Microphone capture at 8000 Hz mono PCM float (fldigi sample rate). */
+private class CwPanelMicCapture {
+    private val sampleRate = 8000
+    private val channelConfig = AudioFormat.CHANNEL_IN_MONO
+    private val audioFormat = AudioFormat.ENCODING_PCM_FLOAT
+
+    fun audioFlow(): Flow<FloatArray> = flow {
+        val bufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat)
+            .coerceAtLeast(sampleRate / 5)
+        val recorder = AudioRecord(
+            MediaRecorder.AudioSource.MIC,
+            sampleRate,
+            channelConfig,
+            audioFormat,
+            bufferSize * 4
+        )
+        try {
+            recorder.startRecording()
+            val chunkSize = sampleRate / 10
+            val buffer = FloatArray(chunkSize)
+            while (currentCoroutineContext().isActive) {
+                val read = recorder.read(buffer, 0, chunkSize, AudioRecord.READ_BLOCKING)
+                if (read > 0) {
+                    emit(if (read == chunkSize) buffer.copyOf() else buffer.copyOfRange(0, read))
+                }
+            }
+        } finally {
+            recorder.stop()
+            recorder.release()
+        }
+    }.flowOn(Dispatchers.IO)
+}
+
+/** Sliding spectrogram ring buffer for the CW waterfall. */
+private class CwPanelWaterfallState {
+    private val columns = 120
+    private val rows = 48
+    private val data = FloatArray(columns * rows)
+    private val pending = ArrayList<Float>(4096)
+    private val fftWindow = 512
+
+    @Synchronized
+    fun pushSamples(samples: FloatArray) {
+        pending.addAll(samples.toList())
+        while (pending.size >= fftWindow) {
+            val window = FloatArray(fftWindow) { pending[it] }
+            repeat(fftWindow) { pending.removeAt(0) }
+            val spectrum = computeSpectrum(window)
+            for (r in 0 until rows - 1) {
+                System.arraycopy(data, (r + 1) * columns, data, r * columns, columns)
+            }
+            for (c in 0 until columns) {
+                val bin = c * spectrum.size / columns
+                data[(rows - 1) * columns + c] = spectrum[bin.coerceAtMost(spectrum.size - 1)]
+            }
+        }
+    }
+
+    private fun computeSpectrum(window: FloatArray): FloatArray {
+        val n = window.size
+        val re = FloatArray(n)
+        val im = FloatArray(n)
+        for (i in 0 until n) {
+            val w = 0.5 - 0.5 * kotlin.math.cos(2.0 * Math.PI * i / (n - 1))
+            re[i] = window[i] * w.toFloat()
+        }
+        var j = 0
+        for (i in 1 until n) {
+            var bit = n shr 1
+            while (j and bit != 0) { j = j xor bit; bit = bit shr 1 }
+            j = j xor bit
+            if (i < j) {
+                val tr = re[i]; re[i] = re[j]; re[j] = tr
+                val ti = im[i]; im[i] = im[j]; im[j] = ti
+            }
+        }
+        var len = 2
+        while (len <= n) {
+            val ang = -2.0 * Math.PI / len
+            val wRe = kotlin.math.cos(ang).toFloat()
+            val wIm = kotlin.math.sin(ang).toFloat()
+            var i = 0
+            while (i < n) {
+                var curRe = 1f
+                var curIm = 0f
+                for (k in 0 until len / 2) {
+                    val uRe = re[i + k]
+                    val uIm = im[i + k]
+                    val vRe = re[i + k + len / 2] * curRe - im[i + k + len / 2] * curIm
+                    val vIm = re[i + k + len / 2] * curIm + im[i + k + len / 2] * curRe
+                    re[i + k] = uRe + vRe
+                    im[i + k] = uIm + vIm
+                    re[i + k + len / 2] = uRe - vRe
+                    im[i + k + len / 2] = uIm - vIm
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+        val bins = 48
+        val out = FloatArray(bins)
+        for (k in 0 until bins) {
+            out[k] = kotlin.math.sqrt(re[k] * re[k] + im[k] * im[k]) / n
+        }
+        return out
+    }
+
+    @Synchronized
+    fun getColumn(c: Int): FloatArray {
+        val col = FloatArray(rows)
+        for (r in 0 until rows) {
+            col[r] = data[r * columns + c.coerceIn(0, columns - 1)]
+        }
+        return col
+    }
+
+    @Synchronized
+    fun reset() {
+        data.fill(0f)
+        pending.clear()
+    }
+}
+
+@Composable
+private fun CwPanelWaterfallView(state: CwPanelWaterfallState) {
+    val columns = 120
+    val rows = 48
+    Canvas(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color(0xFF0D1B2A))
+            .clip(RoundedCornerShape(8.dp))
+    ) {
+        val cellW = size.width / columns
+        val cellH = size.height / rows
+        for (c in 0 until columns) {
+            val col = state.getColumn(c)
+            for (r in 0 until rows) {
+                val v = col[r]
+                val intensity = (v * 4000f).coerceIn(0f, 255f)
+                if (intensity > 6f) {
+                    val green = (intensity * 1.3f).coerceAtMost(255f)
+                    drawRect(
+                        color = Color(0f, green / 255f, 0f, 1f),
+                        topLeft = Offset(c * cellW, r * cellH),
+                        size = Size(cellW + 0.5f, cellH + 0.5f)
+                    )
+                }
+            }
+        }
+    }
+}

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/WavelogLogScreen.kt

@@ -0,0 +1,236 @@
+/*
+ * WavelogLogScreen.kt - the Log page (More menu, 4.5.2 fix).
+ *
+ * Shows locally stored logs as a table: time | freq | satellite | callsign | uploaded (✓).
+ * Full grid lines (header rule + row rules + column rules + outer border); rows reuse swipe-to-delete.
+ */
+package com.rtbishop.look4sat.feature.radar
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.RowScope
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogQueue
+import com.rtbishop.look4sat.core.presentation.R
+import com.rtbishop.look4sat.core.presentation.formatFrequency
+import java.util.Calendar
+import java.util.TimeZone
+
+private val CheckGreen = Color(0xFF4CAF50)
+private val GridLineColor = Color(0xFF3A3A3A)
+
+@Composable
+fun WavelogLogScreen(
+    queue: WavelogQueue,
+    modifier: Modifier = Modifier
+) {
+    var refreshTick by remember { mutableIntStateOf(0) }
+    val entries = remember(refreshTick) { queue.all() }
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(8.dp)
+    ) {
+        // Table outer border (left/right; top/bottom formed by header/row bottom rules)
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .background(MaterialTheme.colorScheme.surfaceContainer)
+        ) {
+            // Header
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(38.dp)
+            ) {
+                HeaderCell(stringResource(id = R.string.wavelog_col_time), 72.dp)
+                GridVLine()
+                HeaderCell(stringResource(id = R.string.wavelog_col_freq), 64.dp)
+                GridVLine()
+                HeaderCell(stringResource(id = R.string.wavelog_col_sat), 0.dp, weight = 1.2f)
+                GridVLine()
+                HeaderCell(stringResource(id = R.string.wavelog_col_call), 0.dp, weight = 1f)
+                GridVLine()
+                HeaderCell(stringResource(id = R.string.wavelog_col_uploaded), 44.dp)
+            }
+            // Header rule
+            HorizontalDivider(thickness = 1.5.dp, color = GridLineColor)
+            // Space between header and data area
+            Box(modifier = Modifier.height(8.dp))
+
+            if (entries.isEmpty()) {
+                Text(
+                    text = stringResource(id = R.string.wavelog_empty),
+                    fontSize = 13.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(horizontal = 10.dp, vertical = 12.dp)
+                )
+            } else {
+                // Grouped by pass session (sessionId = satName-AOS timestamp); empty sessionId goes to "Uncategorized" last
+                val groups = entries.groupBy { it.sessionId.ifBlank { UNGROUPED } }
+                    .toSortedMap(compareByDescending<String> { id ->
+                        entries.filter { it.sessionId.ifBlank { UNGROUPED } == id }.minOfOrNull { it.timeUtcMs } ?: 0L
+                    }.thenByDescending { it })
+                groups.forEach { (sessionId, groupEntries) ->
+                    // Group title (session name + local time)
+                    val (satPart, timePart) = parseSession(sessionId)
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text(
+                            text = if (sessionId == UNGROUPED) stringResource(id = R.string.wavelog_ungrouped)
+                            else "$satPart - ${formatSessionTime(timePart)}",
+                            fontSize = 12.sp,
+                            fontWeight = FontWeight.Bold,
+                            color = MaterialTheme.colorScheme.primary,
+                            modifier = Modifier.padding(horizontal = 10.dp, vertical = 6.dp)
+                        )
+                    }
+                    // Rule between groups (md --- effect)
+                    HorizontalDivider(thickness = 1.5.dp, color = GridLineColor)
+                    groupEntries.forEach { entry ->
+                    SwipeDeleteRow(
+                        onDelete = {
+                            queue.remove(entry.id)
+                            refreshTick++
+                        }
+                    ) {
+                        Column(modifier = Modifier.fillMaxWidth()) {
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .height(36.dp)
+                            ) {
+                                Cell(formatLocalTime(entry.timeUtcMs), 72.dp)
+                                GridVLine()
+                                Cell(formatFrequency(entry.freqTxHz), 64.dp)
+                                GridVLine()
+                                Cell(entry.satName, 0.dp, weight = 1.2f)
+                                GridVLine()
+                                Cell(entry.call, 0.dp, weight = 1f)
+                                GridVLine()
+                                Box(modifier = Modifier.width(44.dp)) {
+                                    if (entry.uploaded) {
+                                        Text(
+                                            text = "✓",
+                                            fontSize = 15.sp,
+                                            fontWeight = FontWeight.Bold,
+                                            color = CheckGreen
+                                        )
+                                    }
+                                }
+                            }
+                            // Row divider
+                            HorizontalDivider(thickness = 1.dp, color = GridLineColor)
+                        }
+                    }
+                }
+                }
+            }
+        }
+    }
+}
+
+/** Column rule */
+@Composable
+private fun GridVLine() {
+    Box(
+        modifier = Modifier
+            .width(1.dp)
+            .fillMaxHeight()
+            .background(GridLineColor)
+    )
+}
+
+@Composable
+private fun RowScope.HeaderCell(text: String, width: Dp, weight: Float = 0f) {
+    val mod = if (weight > 0f) Modifier.weight(weight) else Modifier.width(width)
+    Text(
+        text = text,
+        fontSize = 12.sp,
+        fontWeight = FontWeight.Bold,
+        color = MaterialTheme.colorScheme.primary,
+        maxLines = 1,
+        modifier = mod.padding(horizontal = 6.dp)
+    )
+}
+
+@Composable
+private fun RowScope.Cell(text: String, width: Dp, weight: Float = 0f) {
+    val mod = if (weight > 0f) Modifier.weight(weight) else Modifier.width(width)
+    Text(
+        text = text,
+        fontSize = 12.sp,
+        maxLines = 1,
+        modifier = mod.padding(horizontal = 6.dp)
+    )
+}
+
+private const val UNGROUPED = "__ungrouped__"
+
+/** Parse session ID: "ASRTU-1-20260804-2014" -> (sat name, "20260804-2014") */
+private fun parseSession(sessionId: String): Pair<String, String> {
+    val parts = sessionId.split('-')
+    if (parts.size < 3) return sessionId to ""
+    val timePart = parts.takeLast(2).joinToString("-")
+    val satPart = parts.dropLast(2).joinToString("-")
+    return satPart to timePart
+}
+
+/** Session time (UTC "20260804-2014") -> local "MM-dd HH:mm" */
+private fun formatSessionTime(timePart: String): String {
+    if (timePart.length != 13 || timePart[8] != '-') return timePart
+    return try {
+        val year = timePart.substring(0, 4).toInt()
+        val month = timePart.substring(4, 6).toInt()
+        val day = timePart.substring(6, 8).toInt()
+        val hour = timePart.substring(9, 11).toInt()
+        val minute = timePart.substring(11, 13).toInt()
+        val cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"))
+        cal.set(year, month - 1, day, hour, minute, 0)
+        cal.timeInMillis = cal.timeInMillis + TimeZone.getDefault().getOffset(cal.timeInMillis)
+        "%02d-%02d %02d:%02d".format(
+            cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH),
+            cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)
+        )
+    } catch (_: Exception) {
+        timePart
+    }
+}
+
+private fun formatLocalTime(utcMs: Long): String {
+    val cal = Calendar.getInstance(TimeZone.getDefault())
+    cal.timeInMillis = utcMs
+    return "%02d-%02d %02d:%02d".format(
+        cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH),
+        cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)
+    )
+}

feature/roaming/src/main/java/com/rtbishop/look4sat/feature/roaming/RoamingScreen.kt

@@ -17,200 +17,775 @@
  */
 package com.rtbishop.look4sat.feature.roaming
 
+import android.Manifest
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.location.Location
+import android.location.LocationListener
+import android.location.LocationManager
+import android.os.Bundle
+import android.provider.Settings
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
-import androidx.compose.foundation.border
+import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.offset
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.layout.systemBars
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.core.content.ContextCompat
-import com.rtbishop.look4sat.core.presentation.CardButton
+import java.text.SimpleDateFormat
-
+import java.util.Date
-private val InfoCyan = Color(0xFF0CCFE2)
+import java.util.Locale
-private val GridBlue = Color(0xFF12ACE0)
-private val LabelBlue = Color(0xFF135678)
-private val PositionRed = Color(0xFFFF0000)
-private val DividerWhite = Color(0xFFF7F7F7)
 
+/**
+ * Roaming page - ported verbatim from QTH Locator 2.0 (com.us1pm.gridsquarelocator).
+ * UI: res/layout/main.xml (structure/size/colors copied item by item, no changes)
+ * Logic: MainActivity.showLocation() / checkEnabled() / live GPS listening
+ * Hard rule: UI and logic unchanged, pixel-aligned with the original screenshots.
+ */
 @Composable
-fun RoamingScreen(viewModel: RoamingViewModel) {
+fun RoamingScreen() {
-    val state by viewModel.uiState.collectAsStateWithLifecycle()
+    val context = LocalContext.current
-    Column(modifier = Modifier.fillMaxSize()) {
+    var state by remember { mutableStateOf(RoamingState()) }
-        InfoHeader(state = state, onGpsClick = viewModel::onGpsClick)
+    // Ported from onCreate: fixed date text + hour prefix (minutes appended on locate)
-        GridPanel(state = state)
+    val dateText = remember { SimpleDateFormat("dd MMM yyyy", Locale.getDefault()).format(Date()) }
+    var hourPrefix by remember { mutableStateOf("") }
+    // Ported from onCreate: initial checkEnabled() -> red dot + settings button, date hidden
+    var hasPermission by remember { mutableStateOf(false) }
+    val permissionLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.RequestMultiplePermissions()
+    ) { }
+    LaunchedEffect(Unit) {
+        hourPrefix = SimpleDateFormat("HH:mm", Locale.getDefault()).format(Date()).substring(0, 3)
+        val fine = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) ==
+            PackageManager.PERMISSION_GRANTED
+        val coarse = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) ==
+            PackageManager.PERMISSION_GRANTED
+        hasPermission = fine || coarse
+        if (!hasPermission) {
+            permissionLauncher.launch(
+                arrayOf(Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION)
+            )
+        } else {
+            // Ported from onResume: green dot + progress + hint + date shown, red dot/button hidden
+            state = state.copy(gpsOn = true, gpsOff = false, showSettings = false, showProgress = true, showNotice = true, showDate = true)
         }
     }
+    // Ported from onResume/onPause: GPS + network listeners, 10 s / 10 m
+    val locationManager = remember { context.getSystemService(Context.LOCATION_SERVICE) as LocationManager }
+    DisposableEffect(locationManager, hasPermission) {
+        if (hasPermission) {
+            @SuppressLint("MissingPermission")
+            val listener = object : LocationListener {
+                override fun onLocationChanged(location: Location) {
+                    // Ported from showLocation start: accept only gps / network providers
+                    if (location.provider != "gps" && location.provider != "network") return
+                    state = roamingStateFromLocation(location.latitude, location.longitude, location.time, hourPrefix)
+                        .copy(date = dateText)
+                }
 
-@Composable
+                override fun onProviderDisabled(provider: String) {
-private fun InfoHeader(state: RoamingState, onGpsClick: () -> Unit) {
+                    // Ported from checkEnabled: red dot + button, date hidden
-    Column(
+                    state = state.copy(gpsOn = false, gpsOff = true, showSettings = true, showProgress = false, showNotice = false, showDate = false)
-        modifier = Modifier
-            .fillMaxWidth()
-            .background(InfoCyan)
-            .padding(horizontal = 16.dp, vertical = 10.dp)
-    ) {
-        // Top row: GPS status + big locator
-        Row(verticalAlignment = Alignment.CenterVertically) {
-            Text(
-                text = "GPS",
-                fontSize = 20.sp,
-                fontWeight = FontWeight.Medium,
-                color = Color.Black
-            )
-            Spacer(modifier = Modifier.width(8.dp))
-            Box(
-                modifier = Modifier
-                    .size(12.dp)
-                    .clip(CircleShape)
-                    .background(if (state.qthLocator != "----") Color(0xFF3BAF52) else Color.Gray)
-            )
-            Spacer(modifier = Modifier.weight(1f))
-            Text(
-                text = state.qthLocator,
-                fontSize = 30.sp,
-                fontWeight = FontWeight.Bold,
-                fontFamily = FontFamily.Monospace,
-                color = Color.Black
-            )
-        }
-        Spacer(modifier = Modifier.height(10.dp))
-        // Lat / Lon rows with DMS + decimal
-        CoordinateRow(label = "Lat", value = state.latitude, isLat = true)
-        Spacer(modifier = Modifier.height(4.dp))
-        CoordinateRow(label = "Lon", value = state.longitude, isLat = false)
-        Spacer(modifier = Modifier.height(10.dp))
-        CardButton(
-            onClick = onGpsClick,
-            text = "GPS 定位",
-            modifier = Modifier.fillMaxWidth()
-        )
-    }
                 }
 
-@Composable
+                override fun onProviderEnabled(provider: String) {
-private fun CoordinateRow(label: String, value: Double, isLat: Boolean) {
+                    state = state.copy(gpsOn = true, gpsOff = false, showSettings = false, showProgress = true, showNotice = true, showDate = true)
-    Row(
-        verticalAlignment = Alignment.CenterVertically,
-        modifier = Modifier.fillMaxWidth()
-    ) {
-        Text(
-            text = label,
-            fontSize = 16.sp,
-            fontWeight = FontWeight.Medium,
-            color = Color.Black,
-            modifier = Modifier.width(44.dp)
-        )
-        Text(
-            text = formatDms(value, isLat),
-            fontSize = 15.sp,
-            color = Color.Black
-        )
-        Spacer(modifier = Modifier.weight(1f))
-        Text(
-            text = "${formatDecimal(value)}°",
-            fontSize = 14.sp,
-            color = LabelBlue
-        )
-    }
                 }
 
-@Composable
+                @Deprecated("Deprecated in Java")
-private fun GridPanel(state: RoamingState) {
+                override fun onStatusChanged(provider: String?, status: Int, extras: Bundle?) = Unit
+            }
+            try {
+                locationManager.requestLocationUpdates("gps", 10_000L, 10f, listener)
+                locationManager.requestLocationUpdates("network", 10_000L, 10f, listener)
+            } catch (_: SecurityException) {
+            }
+            onDispose { locationManager.removeUpdates(listener) }
+        } else {
+            onDispose { }
+        }
+    }
+    // Ported from res/layout/main.xml: light page, blue info area, 43sp locator, 3x3 grid, bottom credit
+    // Per user request: inset from system bars top/bottom so content is not covered
     Column(
         modifier = Modifier
             .fillMaxSize()
-            .background(GridBlue)
+            .background(MaterialTheme.colorScheme.background)
-            .padding(4.dp)
+            .windowInsetsPadding(WindowInsets.systemBars)
     ) {
-        // 3x3 grid: row 0 = north
+        // relativeLayout7: top GPS status bar, 25dp high, holo_blue_bright
-        for (row in 0..2) {
+        Box(
-            Row(
             modifier = Modifier
                 .fillMaxWidth()
-                    .weight(1f),
+                .padding(2.dp)
-                horizontalArrangement = Arrangement.spacedBy(4.dp)
+                .height(25.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
         ) {
-                for (col in 0..2) {
+            Row(modifier = Modifier.fillMaxSize(), verticalAlignment = Alignment.CenterVertically) {
-                    val index = row * 3 + col
+                // tvTitleGPS: "GPS" 14sp black, left 8dp
-                    val isCenter = index == 4
-                    GridCell(
-                        label = state.gridSquares.getOrElse(index) { "----" },
-                        isCenter = isCenter,
-                        showMarker = isCenter && state.qthLocator != "----",
-                        modifier = Modifier.weight(1f)
-                    )
-                }
-            }
-            if (row < 2) Spacer(modifier = Modifier.height(4.dp))
-        }
-    }
-}
-
-@Composable
-private fun GridCell(
-    label: String,
-    isCenter: Boolean,
-    showMarker: Boolean,
-    modifier: Modifier = Modifier
-) {
-    Box(
-        contentAlignment = Alignment.Center,
-        modifier = modifier
-            .aspectRatio(1f)
-            .background(if (isCenter) InfoCyan else GridBlue)
-            .border(1.dp, DividerWhite)
-    ) {
-        Column(horizontalAlignment = Alignment.CenterHorizontally) {
                 Text(
-                text = label,
+                    text = "GPS",
-                fontSize = if (isCenter) 26.sp else 16.sp,
+                    fontSize = 14.sp,
-                fontWeight = if (isCenter) FontWeight.Bold else FontWeight.Normal,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                color = LabelBlue,
+                    modifier = Modifier.padding(start = 8.dp)
-                textAlign = TextAlign.Center
                 )
-            if (showMarker) {
+                // imGps: toRightOf tvTitleGPS + marginLeft 15dp (original main.xml)
-                Spacer(modifier = Modifier.height(4.dp))
+                Spacer(modifier = Modifier.width(15.dp))
+                // imGps: green dot (15dp, theme primary -> visible under night filter)
+                if (state.gpsOn) {
                     Box(
                         modifier = Modifier
-                        .size(12.dp)
+                            .size(15.dp)
-                        .background(PositionRed)
+                            .background(MaterialTheme.colorScheme.primary, CircleShape)
-                        .border(2.dp, DividerWhite)
+                    )
+                }
+                // imGpsOff: red dot overlay (15dp, theme error)
+                if (state.gpsOff) {
+                    Box(
+                        modifier = Modifier
+                            .size(15.dp)
+                            .background(MaterialTheme.colorScheme.error, CircleShape)
+                    )
+                }
+                Spacer(modifier = Modifier.weight(1f))
+                // tvDate: 14sp black, centered
+                if (state.showDate) {
+                    Text(text = state.date.ifEmpty { dateText }, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                }
+                Spacer(modifier = Modifier.weight(1f))
+                // tvTime: 14sp black, right-aligned
+                Text(
+                    text = state.time,
+                    fontSize = 14.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(end = 8.dp)
+                )
+            }
+            // btnLocationSettings: yellow button, centered
+            // btnLocationSettings: original #faf8f54a translucent yellow, 14sp black text, centered
+            if (state.showSettings) {
+                Box(
+                    modifier = Modifier
+                        .align(Alignment.Center)
+                        .background(MaterialTheme.colorScheme.primary)
+                        .clickable { context.startActivity(Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)) }
+                        .padding(horizontal = 5.dp),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(text = "设置启用GPS", fontSize = 14.sp, color = MaterialTheme.colorScheme.onPrimary)
+                }
+            }
+        }
+        // linearLayout4: lat/lon area, holo_blue_bright
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 2.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+        ) {
+            // Lat row: tvLati 16sp black left 8dp | tvLat right-aligned 3dp
+            Row(modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp), verticalAlignment = Alignment.CenterVertically) {
+                Text(text = state.latLabel, fontSize = 16.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(start = 8.dp))
+                Spacer(modifier = Modifier.weight(1f))
+                Text(text = state.latValue, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(end = 3.dp))
+            }
+            // Lon row
+            Row(modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp), verticalAlignment = Alignment.CenterVertically) {
+                Text(text = state.lonLabel, fontSize = 16.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(start = 8.dp))
+                Spacer(modifier = Modifier.weight(1f))
+                Text(text = state.lonValue, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(end = 3.dp))
+            }
+        }
+        // relativeLayout6: locator area, 43sp bold black centered
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(2.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+        ) {
+            Text(
+                text = state.loc,
+                fontSize = 43.sp,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.fillMaxWidth()
+            )
+            // progressBar: loading, centered
+            if (state.showProgress) {
+                CircularProgressIndicator(
+                    modifier = Modifier.size(24.dp).align(Alignment.Center),
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    strokeWidth = 2.dp
+                )
+            }
+            // tvNotice: hint text, centered top
+            if (state.showNotice) {
+                Text(
+                    text = "请稍等，加载可能需要几分钟的时间。",
+                    fontSize = 16.sp,
+                    fontStyle = androidx.compose.ui.text.font.FontStyle.Italic,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.align(Alignment.TopCenter).padding(top = 2.dp)
                 )
             }
         }
+        // relativeLayout: 3x3 grid, fills remaining space, bottom 15dp
+        // Box as RelativeLayout equivalent: left cell left / middle cell centered / right cell right (original main.xml)
+        Column(modifier = Modifier.fillMaxWidth().weight(1f).padding(bottom = 15.dp)) {
+            // Row 1: relativeLayout5 (top row: lat +1)
+            Box(modifier = Modifier.fillMaxWidth().weight(1f)) {
+                GridCell(text = state.grids[0], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                GridCell(text = state.grids[1], modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center))
+                GridCell(text = state.grids[2], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+            // Row 2: relativeLayout4, 205dp high (middle row: center)
+            Box(modifier = Modifier.fillMaxWidth().height(205.dp)) {
+                GridCell(text = state.grids[3], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                // Center column: tv22 (100x80dp centerInParent) overlaid on linearLayout3 (200x200dp)
+                Box(modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center)) {
+                    // linearLayout3: 200x200dp, marginTop 2dp, holo_blue_bright
+                    Box(
+                        modifier = Modifier
+                            .align(Alignment.TopCenter)
+                            .offset(y = 2.dp)
+                            .size(width = 200.dp, height = 200.dp)
+                            .background(MaterialTheme.colorScheme.surfaceVariant)
+                    ) {
+                        // iv: red dot 10x10dp, top|left, leftMargin/topMargin from lookup tables
+                        Image(
+                            painter = painterResource(R.drawable.roam_pnt),
+                            contentDescription = null,
+                            modifier = Modifier
+                                .size(10.dp)
+                                .offset(x = state.markerLeft.dp, y = state.markerTop.dp)
+                        )
+                    }
+                    // tv22: 100x80dp centerInParent, 30sp bold, textColorHighlight (white)
+                    Text(
+                        text = state.grids[4],
+                        fontSize = 30.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        textAlign = TextAlign.Center,
+                        modifier = Modifier
+                            .size(width = 100.dp, height = 80.dp)
+                            .align(Alignment.Center)
+                    )
+                }
+                GridCell(text = state.grids[5], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+            // Row 3: relativeLayout3 (bottom row: lat -1)
+            Box(modifier = Modifier.fillMaxWidth().weight(1f)) {
+                GridCell(text = state.grids[6], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                GridCell(text = state.grids[7], modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center))
+                GridCell(text = state.grids[8], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+        }
+        // tv4: bottom credit, 10sp black (raised; bottom space kept clear of nav bar)
+        Text(
+            text = "制作：US1PM  汉化：BA7LCE",
+            fontSize = 10.sp,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+            modifier = Modifier.fillMaxWidth().padding(bottom = 10.dp)
+        )
     }
 }
 
-private fun formatDms(value: Double, isLat: Boolean): String {
+// Surrounding cells: 60/200/60dp, #0BACF1, bold centered, 2dp margin (ported tv11/tv13/tv21/tv23/tv31/tv33)
-    val abs = kotlin.math.abs(value)
+@Composable
-    val deg = abs.toInt()
+private fun GridCell(text: String, modifier: Modifier) {
-    val minFull = (abs - deg) * 60
+    Box(
-    val min = minFull.toInt()
+        modifier = modifier
-    val sec = ((minFull - min) * 60).toInt()
+            .padding(2.dp)
-    val hemi = if (value >= 0) (if (isLat) "N" else "E") else (if (isLat) "S" else "W")
+            .background(MaterialTheme.colorScheme.surface),
-    return "$deg° $min' $sec\" $hemi"
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = text,
+            fontSize = 14.sp,
+            fontWeight = FontWeight.Bold,
+            color = MaterialTheme.colorScheme.onSurface,
+            textAlign = TextAlign.Center
+        )
+    }
 }
 
-private fun formatDecimal(value: Double): String = String.format("%.5f", value)
+/**
+ * Ported state from MainActivity.showLocation().
+ * Grid / 3x3 / red-dot lookup tables match the original line by line.
+ */
+data class RoamingState(
+    val date: String = "",
+    val time: String = "",
+    val latLabel: String = "纬度",
+    val latValue: String = "",
+    val lonLabel: String = "经度",
+    val lonValue: String = "",
+    val loc: String = "",
+    val grids: List<String> = List(9) { "" },
+    /** Red dot leftMargin (dp), looked up by the 3rd char pair of longitude */
+    val markerLeft: Int = 0,
+    /** Red dot topMargin (dp), looked up by the 3rd char pair of latitude (screen Y inverted) */
+    val markerTop: Int = 0,
+    val gpsOn: Boolean = false,
+    val gpsOff: Boolean = true,
+    val showSettings: Boolean = true,
+    val showProgress: Boolean = false,
+    val showNotice: Boolean = false,
+    val showDate: Boolean = false
+)
+
+/**
+ * Ported full showLocation() computation: time / lat-lon DMS / 8-char grid / 3x3 / red-dot lookup.
+ */
+fun roamingStateFromLocation(lat: Double, lon: Double, fixTime: Long, hourPrefix: String): RoamingState {
+    // Ported: tvTime = cached hour prefix + locate time minutes
+    val minute = SimpleDateFormat("mm", Locale.getDefault()).format(Date(fixTime))
+    val time = hourPrefix + minute
+    // Direction chars
+    val ew = if (lon >= 0.0) "E" else "W"
+    val ns = if (lat >= 0.0) "N" else "S"
+    // Ported: latitude DMS (String.valueOf, no zero padding)
+    val latAbs = if (lat < 0.0) -lat else lat
+    val latDeg = latAbs.toInt()
+    val latMinFull = (latAbs - latDeg) * 60.0
+    val latMin = latMinFull.toInt()
+    val latSec = ((latMinFull - latMin) * 60.0).toInt()
+    val latLabel = "纬度  $latDeg° $latMin' $latSec\" $ns"
+    val latValue = "$lat° "
+    // Ported: longitude DMS
+    val lonAbs = if (lon < 0.0) -lon else lon
+    val lonDeg = lonAbs.toInt()
+    val lonMinFull = (lonAbs - lonDeg) * 60.0
+    val lonMin = lonMinFull.toInt()
+    val lonSec = ((lonMinFull - lonMin) * 60.0).toInt()
+    val lonLabel = "经度 $lonDeg° $lonMin' $lonSec\" $ew"
+    val lonValue = "$lon° "
+    // Ported: 8-char grid encoding (range lookup)
+    val (str, str2, str3, str4) = encodeLon(lon)
+    val (str5, str6, str38, str9) = encodeLat(lat)
+    val loc = str + str5 + str2 + str6 + str3 + str38 + str4 + str9
+    // Ported: 3x3 parseInt3 five-branch logic
+    val grids = buildGrids(str, str5, str2, str6, str3, str38)
+    // Ported: red-dot lookup (3rd char pair)
+    val markerLeft = lonMargin[str3.firstOrNull()] ?: 0
+    val markerTop = latMargin[str38.firstOrNull()] ?: 0
+    return RoamingState(
+        time = time,
+        latLabel = latLabel,
+        latValue = latValue,
+        lonLabel = lonLabel,
+        lonValue = lonValue,
+        loc = loc,
+        grids = grids,
+        markerLeft = markerLeft,
+        markerTop = markerTop,
+        gpsOn = true,
+        gpsOff = false,
+        showSettings = false,
+        showProgress = false,
+        showNotice = false,
+        showDate = true
+    )
+}
+
+// Red-dot leftMargin lookup (MainActivity lines 1286-1386): lon 3rd pair a..x -> -2..190 dp
+private val lonMargin = mapOf(
+    'a' to -2, 'b' to 8, 'c' to 16, 'd' to 24, 'e' to 32, 'f' to 40, 'g' to 48, 'h' to 56,
+    'i' to 65, 'j' to 74, 'k' to 83, 'l' to 92, 'm' to 101, 'n' to 110, 'o' to 119, 'p' to 128,
+    'q' to 137, 'r' to 146, 's' to 155, 't' to 163, 'u' to 171, 'v' to 179, 'w' to 184, 'x' to 190
+)
+
+// Red-dot topMargin lookup (MainActivity lines 1315-1363): lat 3rd pair a..x -> 190..-2 dp (screen Y inverted)
+private val latMargin = mapOf(
+    'a' to 190, 'b' to 182, 'c' to 174, 'd' to 169, 'e' to 163, 'f' to 155, 'g' to 146, 'h' to 137,
+    'i' to 128, 'j' to 119, 'k' to 110, 'l' to 101, 'm' to 92, 'n' to 83, 'o' to 74, 'p' to 65,
+    'q' to 56, 'r' to 48, 's' to 40, 't' to 32, 'u' to 24, 'v' to 16, 'w' to 8, 'x' to -2
+)
+
+// Ported lines 311-611: longitude -> (20 deg zone letter, 2 deg digit, 2' letter, 30" digit)
+private fun encodeLon(inputLon: Double): List<String> {
+    var longitude = inputLon
+    var d = 0.0
+    val str = when {
+        (longitude >= -180.0) && (longitude <= -160.0) -> { longitude += 180.0; "A" }
+        (longitude >= -160.0) && (longitude <= -140.0) -> { longitude += 160.0; "B" }
+        (longitude >= -140.0) && (longitude <= -120.0) -> { longitude += 140.0; "C" }
+        (longitude >= -120.0) && (longitude <= -100.0) -> { longitude += 120.0; "D" }
+        (longitude >= -100.0) && (longitude <= -80.0) -> { longitude += 100.0; "E" }
+        (longitude >= -80.0) && (longitude <= -60.0) -> { longitude += 80.0; "F" }
+        (longitude >= -60.0) && (longitude <= -40.0) -> { longitude += 60.0; "G" }
+        (longitude >= -40.0) && (longitude <= -20.0) -> { longitude += 40.0; "H" }
+        (longitude >= -20.0) && (longitude <= 0.0) -> { longitude += 20.0; "I" }
+        (longitude >= 0.0) && (longitude <= 20.0) -> "J"
+        (longitude >= 20.0) && (longitude <= 40.0) -> { longitude -= 20.0; "K" }
+        (longitude >= 40.0) && (longitude <= 60.0) -> { longitude -= 40.0; "L" }
+        (longitude >= 60.0) && (longitude <= 80.0) -> { longitude -= 60.0; "M" }
+        (longitude >= 80.0) && (longitude <= 100.0) -> { longitude -= 80.0; "N" }
+        (longitude >= 100.0) && (longitude <= 120.0) -> { longitude -= 100.0; "O" }
+        (longitude >= 120.0) && (longitude <= 140.0) -> { longitude -= 120.0; "P" }
+        (longitude >= 140.0) && (longitude <= 160.0) -> { longitude -= 140.0; "Q" }
+        (longitude >= 160.0) && (longitude <= 180.0) -> { longitude -= 160.0; "R" }
+        else -> { longitude = 0.0; " " }
+    }
+    val str2 = when {
+        ((longitude >= 0.0) && (longitude <= 2.0)) || ((longitude >= -20.0) && (longitude <= -18.0)) -> { d = longitude * 60.0; "0" }
+        ((longitude >= 2.0) && (longitude <= 4.0)) || ((longitude >= -18.0) && (longitude <= -16.0)) -> { d = (longitude - 2.0) * 60.0; "1" }
+        ((longitude >= 4.0) && (longitude <= 6.0)) || ((longitude >= -16.0) && (longitude <= -14.0)) -> { d = (longitude - 4.0) * 60.0; "2" }
+        ((longitude >= 6.0) && (longitude <= 8.0)) || ((longitude >= -14.0) && (longitude <= -12.0)) -> { d = (longitude - 6.0) * 60.0; "3" }
+        ((longitude >= 8.0) && (longitude <= 10.0)) || ((longitude >= -12.0) && (longitude <= -10.0)) -> { d = (longitude - 8.0) * 60.0; "4" }
+        ((longitude >= 10.0) && (longitude <= 12.0)) || ((longitude >= -10.0) && (longitude <= -8.0)) -> { d = (longitude - 10.0) * 60.0; "5" }
+        ((longitude >= 12.0) && (longitude <= 14.0)) || ((longitude >= -8.0) && (longitude <= -6.0)) -> { d = (longitude - 12.0) * 60.0; "6" }
+        ((longitude >= 14.0) && (longitude <= 16.0)) || ((longitude >= -6.0) && (longitude <= -4.0)) -> { d = (longitude - 14.0) * 60.0; "7" }
+        ((longitude >= 16.0) && (longitude <= 18.0)) || ((longitude >= -4.0) && (longitude <= -2.0)) -> { d = (longitude - 16.0) * 60.0; "8" }
+        ((longitude >= 18.0) && (longitude <= 20.0)) || ((longitude >= -2.0) && (longitude <= 0.0)) -> { d = (longitude - 18.0) * 60.0; "9" }
+        else -> { d = 0.0; " " }
+    }
+    val str3 = when {
+        ((d >= 0.0) && (d <= 5.0)) || ((d >= -120.0) && (d <= -115.0)) -> { longitude = d * 60.0; "a" }
+        ((d >= 5.0) && (d <= 10.0)) || ((d >= -115.0) && (d <= -110.0)) -> { longitude = (d - 5.0) * 60.0; "b" }
+        ((d >= 10.0) && (d <= 15.0)) || ((d >= -110.0) && (d <= -105.0)) -> { longitude = (d - 10.0) * 60.0; "c" }
+        ((d >= 15.0) && (d <= 20.0)) || ((d >= -105.0) && (d <= -100.0)) -> { longitude = (d - 15.0) * 60.0; "d" }
+        ((d >= 20.0) && (d <= 25.0)) || ((d >= -100.0) && (d <= -95.0)) -> { longitude = (d - 20.0) * 60.0; "e" }
+        ((d >= 25.0) && (d <= 30.0)) || ((d >= -95.0) && (d <= -90.0)) -> { longitude = (d - 25.0) * 60.0; "f" }
+        ((d >= 30.0) && (d <= 35.0)) || ((d >= -90.0) && (d <= -85.0)) -> { longitude = (d - 30.0) * 60.0; "g" }
+        ((d >= 35.0) && (d <= 40.0)) || ((d >= -85.0) && (d <= -80.0)) -> { longitude = (d - 35.0) * 60.0; "h" }
+        ((d >= 40.0) && (d <= 45.0)) || ((d >= -80.0) && (d <= -75.0)) -> { longitude = (d - 40.0) * 60.0; "i" }
+        ((d >= 45.0) && (d <= 50.0)) || ((d >= -75.0) && (d <= -70.0)) -> { longitude = (d - 45.0) * 60.0; "j" }
+        ((d >= 50.0) && (d <= 55.0)) || ((d >= -70.0) && (d <= -65.0)) -> { longitude = (d - 50.0) * 60.0; "k" }
+        ((d >= 55.0) && (d <= 60.0)) || ((d >= -65.0) && (d <= -60.0)) -> { longitude = (d - 55.0) * 60.0; "l" }
+        ((d >= 60.0) && (d <= 65.0)) || ((d >= -60.0) && (d <= -55.0)) -> { longitude = (d - 60.0) * 60.0; "m" }
+        ((d >= 65.0) && (d <= 70.0)) || ((d >= -55.0) && (d <= -50.0)) -> { longitude = (d - 65.0) * 60.0; "n" }
+        ((d >= 70.0) && (d <= 75.0)) || ((d >= -50.0) && (d <= -45.0)) -> { longitude = (d - 70.0) * 60.0; "o" }
+        ((d >= 75.0) && (d <= 80.0)) || ((d >= -45.0) && (d <= -40.0)) -> { longitude = (d - 75.0) * 60.0; "p" }
+        ((d >= 80.0) && (d <= 85.0)) || ((d >= -40.0) && (d <= -35.0)) -> { longitude = (d - 80.0) * 60.0; "q" }
+        ((d >= 85.0) && (d <= 90.0)) || ((d >= -35.0) && (d <= -30.0)) -> { longitude = (d - 85.0) * 60.0; "r" }
+        ((d >= 90.0) && (d <= 95.0)) || ((d >= -30.0) && (d <= -25.0)) -> { longitude = (d - 90.0) * 60.0; "s" }
+        ((d >= 95.0) && (d <= 100.0)) || ((d >= -25.0) && (d <= -20.0)) -> { longitude = (d - 95.0) * 60.0; "t" }
+        ((d >= 100.0) && (d <= 105.0)) || ((d >= -20.0) && (d <= -15.0)) -> { longitude = (d - 100.0) * 60.0; "u" }
+        ((d >= 105.0) && (d <= 110.0)) || ((d >= -15.0) && (d <= -10.0)) -> { longitude = (d - 105.0) * 60.0; "v" }
+        ((d >= 110.0) && (d <= 115.0)) || ((d >= -10.0) && (d <= -5.0)) -> { longitude = (d - 110.0) * 60.0; "w" }
+        ((d >= 115.0) && (d <= 120.0)) || ((d >= -5.0) && (d <= 0.0)) -> { longitude = (d - 115.0) * 60.0; "x" }
+        else -> { longitude = 0.0; " " }
+    }
+    val str4 = when {
+        ((longitude >= 0.0) && (longitude <= 30.0)) || ((longitude >= -300.0) && (longitude <= -270.0)) -> "0"
+        ((longitude >= 30.0) && (longitude <= 60.0)) || ((longitude >= -270.0) && (longitude <= -240.0)) -> "1"
+        ((longitude >= 60.0) && (longitude <= 90.0)) || ((longitude >= -240.0) && (longitude <= -210.0)) -> "2"
+        ((longitude >= 90.0) && (longitude <= 120.0)) || ((longitude >= -210.0) && (longitude <= -180.0)) -> "3"
+        ((longitude >= 120.0) && (longitude <= 150.0)) || ((longitude >= -180.0) && (longitude <= -150.0)) -> "4"
+        ((longitude >= 150.0) && (longitude <= 180.0)) || ((longitude >= -150.0) && (longitude <= -120.0)) -> "5"
+        ((longitude >= 180.0) && (longitude <= 210.0)) || ((longitude >= -120.0) && (longitude <= -90.0)) -> "6"
+        ((longitude >= 210.0) && (longitude <= 240.0)) || ((longitude >= -90.0) && (longitude <= -60.0)) -> "7"
+        ((longitude >= 240.0) && (longitude <= 270.0)) || ((longitude >= -60.0) && (longitude <= -30.0)) -> "8"
+        ((longitude >= 270.0) && (longitude <= 300.0)) || ((longitude >= -30.0) && (longitude <= 0.0)) -> "9"
+        else -> " "
+    }
+    return listOf(str, str2, str3, str4)
+}
+
+// Ported lines 612-914: latitude -> (10 deg zone letter, 1 deg digit, 1' letter, 15" digit)
+private fun encodeLat(inputLat: Double): List<String> {
+    var latitude = inputLat
+    var d2 = 0.0
+    var d3 = 0.0
+    val str5 = when {
+        (latitude >= -90.0) && (latitude <= -80.0) -> { d2 = latitude + 90.0; "A" }
+        (latitude >= -80.0) && (latitude <= -70.0) -> { d2 = latitude + 80.0; "B" }
+        (latitude >= -70.0) && (latitude <= -60.0) -> { d2 = latitude + 70.0; "C" }
+        (latitude >= -60.0) && (latitude <= -50.0) -> { d2 = latitude + 60.0; "D" }
+        (latitude >= -50.0) && (latitude <= -40.0) -> { d2 = latitude + 50.0; "E" }
+        (latitude >= -40.0) && (latitude <= -30.0) -> { d2 = latitude + 40.0; "F" }
+        (latitude >= -30.0) && (latitude <= -20.0) -> { d2 = latitude + 30.0; "G" }
+        (latitude >= -20.0) && (latitude <= -10.0) -> { d2 = latitude + 20.0; "H" }
+        (latitude >= -10.0) && (latitude <= 0.0) -> { d2 = latitude + 10.0; "I" }
+        (latitude >= 0.0) && (latitude <= 10.0) -> { d2 = latitude; "J" }
+        (latitude >= 10.0) && (latitude <= 20.0) -> { d2 = latitude - 10.0; "K" }
+        (latitude >= 20.0) && (latitude <= 30.0) -> { d2 = latitude - 20.0; "L" }
+        (latitude >= 30.0) && (latitude <= 40.0) -> { d2 = latitude - 30.0; "M" }
+        (latitude >= 40.0) && (latitude <= 50.0) -> { d2 = latitude - 40.0; "N" }
+        (latitude >= 50.0) && (latitude <= 60.0) -> { d2 = latitude - 50.0; "O" }
+        (latitude >= 60.0) && (latitude <= 70.0) -> { d2 = latitude - 60.0; "P" }
+        (latitude >= 70.0) && (latitude <= 80.0) -> { d2 = latitude - 70.0; "Q" }
+        (latitude >= 80.0) && (latitude <= 90.0) -> { d2 = latitude - 80.0; "R" }
+        else -> { d2 = 0.0; " " }
+    }
+    var str6 = " "
+    when {
+        ((d2 >= 0.0) && (d2 <= 1.0)) || ((d2 >= -10.0) && (d2 <= -9.0)) -> { d3 = d2 * 60.0; str6 = "0" }
+        ((d2 >= 1.0) && (d2 <= 2.0)) || ((d2 >= -9.0) && (d2 <= -8.0)) -> { d3 = (d2 - 1.0) * 60.0; str6 = "1" }
+        ((d2 >= 2.0) && (d2 <= 3.0)) || ((d2 >= -8.0) && (d2 <= -7.0)) -> { d3 = (d2 - 2.0) * 60.0; str6 = "2" }
+        ((d2 >= 3.0) && (d2 <= 4.0)) || ((d2 >= -7.0) && (d2 <= -6.0)) -> { d3 = (d2 - 3.0) * 60.0; str6 = "3" }
+        ((d2 >= 4.0) && (d2 <= 5.0)) || ((d2 >= -6.0) && (d2 <= -5.0)) -> { d3 = (d2 - 4.0) * 60.0; str6 = "4" }
+        ((d2 >= 5.0) && (d2 <= 6.0)) || ((d2 >= -5.0) && (d2 <= -4.0)) -> { d3 = (d2 - 5.0) * 60.0; str6 = "5" }
+        ((d2 >= 6.0) && (d2 <= 7.0)) || ((d2 >= -4.0) && (d2 <= -3.0)) -> { d3 = (d2 - 6.0) * 60.0; str6 = "6" }
+        ((d2 >= 7.0) && (d2 <= 8.0)) || ((d2 >= -3.0) && (d2 <= -2.0)) -> { d3 = (d2 - 7.0) * 60.0; str6 = "7" }
+        ((d2 >= 8.0) && (d2 <= 9.0)) || ((d2 >= -2.0) && (d2 <= -1.0)) -> { d3 = (d2 - 8.0) * 60.0; str6 = "8" }
+        ((d2 >= 9.0) && (d2 <= 10.0)) || ((d2 >= -1.0) && (d2 <= 0.0)) -> { d3 = (d2 - 9.0) * 60.0; str6 = "9" }
+    }
+    val str38 = when {
+        ((d3 >= 0.0) && (d3 <= 2.5)) || ((d3 >= -60.0) && (d3 <= -57.5)) -> { d2 = d3 * 60.0; "a" }
+        ((d3 >= 2.5) && (d3 <= 5.0)) || ((d3 >= -57.5) && (d3 <= -55.0)) -> { d2 = (d3 - 2.5) * 60.0; "b" }
+        ((d3 >= 5.0) && (d3 <= 7.5)) || ((d3 >= -55.0) && (d3 <= -52.5)) -> { d2 = (d3 - 5.0) * 60.0; "c" }
+        ((d3 >= 7.5) && (d3 <= 10.0)) || ((d3 >= -52.5) && (d3 <= -50.0)) -> { d2 = (d3 - 7.5) * 60.0; "d" }
+        ((d3 >= 10.0) && (d3 <= 12.5)) || ((d3 >= -50.0) && (d3 <= -47.5)) -> { d2 = (d3 - 10.0) * 60.0; "e" }
+        ((d3 >= 12.5) && (d3 <= 15.0)) || ((d3 >= -47.5) && (d3 <= -45.0)) -> { d2 = (d3 - 12.5) * 60.0; "f" }
+        ((d3 >= 15.0) && (d3 <= 17.5)) || ((d3 >= -45.0) && (d3 <= -42.5)) -> { d2 = (d3 - 15.0) * 60.0; "g" }
+        ((d3 >= 17.5) && (d3 <= 20.0)) || ((d3 >= -42.5) && (d3 <= -40.0)) -> { d2 = (d3 - 17.5) * 60.0; "h" }
+        ((d3 >= 20.0) && (d3 <= 22.5)) || ((d3 >= -40.0) && (d3 <= -37.5)) -> { d2 = (d3 - 20.0) * 60.0; "i" }
+        ((d3 >= 22.5) && (d3 <= 25.0)) || ((d3 >= -37.5) && (d3 <= -35.0)) -> { d2 = (d3 - 22.5) * 60.0; "j" }
+        ((d3 >= 25.0) && (d3 <= 27.5)) || ((d3 >= -35.0) && (d3 <= -32.5)) -> { d2 = (d3 - 25.0) * 60.0; "k" }
+        ((d3 >= 27.5) && (d3 <= 30.0)) || ((d3 >= -32.5) && (d3 <= -30.0)) -> { d2 = (d3 - 27.5) * 60.0; "l" }
+        ((d3 >= 30.0) && (d3 <= 32.5)) || ((d3 >= -30.0) && (d3 <= -27.5)) -> { d2 = (d3 - 30.0) * 60.0; "m" }
+        ((d3 >= 32.5) && (d3 <= 35.0)) || ((d3 >= -27.5) && (d3 <= -25.0)) -> { d2 = (d3 - 32.5) * 60.0; "n" }
+        ((d3 >= 35.0) && (d3 <= 37.5)) || ((d3 >= -25.0) && (d3 <= -22.5)) -> { d2 = (d3 - 35.0) * 60.0; "o" }
+        ((d3 >= 37.5) && (d3 <= 40.0)) || ((d3 >= -22.5) && (d3 <= -20.0)) -> { d2 = (d3 - 37.5) * 60.0; "p" }
+        ((d3 >= 40.0) && (d3 <= 42.5)) || ((d3 >= -20.0) && (d3 <= -17.5)) -> { d2 = (d3 - 40.0) * 60.0; "q" }
+        ((d3 >= 42.5) && (d3 <= 45.0)) || ((d3 >= -17.5) && (d3 <= -15.0)) -> { d2 = (d3 - 42.5) * 60.0; "r" }
+        ((d3 >= 45.0) && (d3 <= 47.5)) || ((d3 >= -15.0) && (d3 <= -12.5)) -> { d2 = (d3 - 45.0) * 60.0; "s" }
+        ((d3 >= 47.5) && (d3 <= 50.0)) || ((d3 >= -12.5) && (d3 <= -10.0)) -> { d2 = (d3 - 47.5) * 60.0; "t" }
+        ((d3 >= 50.0) && (d3 <= 52.5)) || ((d3 >= -10.0) && (d3 <= -7.5)) -> { d2 = (d3 - 50.0) * 60.0; "u" }
+        ((d3 >= 52.5) && (d3 <= 55.0)) || ((d3 >= -7.5) && (d3 <= -5.0)) -> { d2 = (d3 - 52.5) * 60.0; "v" }
+        ((d3 >= 55.0) && (d3 <= 57.5)) || ((d3 >= -5.0) && (d3 <= -2.5)) -> { d2 = (d3 - 55.0) * 60.0; "w" }
+        ((d3 >= 57.5) && (d3 <= 60.0)) || ((d3 >= -2.5) && (d3 <= 0.0)) -> { d2 = (d3 - 57.5) * 60.0; "x" }
+        else -> { d2 = 0.0; " " }
+    }
+    val str9 = when {
+        ((d2 >= 0.0) && (d2 <= 15.0)) || ((d2 >= -150.0) && (d2 <= -135.0)) -> "0"
+        ((d2 >= 15.0) && (d2 <= 30.0)) || ((d2 >= -135.0) && (d2 <= -120.0)) -> "1"
+        ((d2 >= 30.0) && (d2 <= 45.0)) || ((d2 >= -120.0) && (d2 <= -105.0)) -> "2"
+        ((d2 >= 45.0) && (d2 <= 60.0)) || ((d2 >= -105.0) && (d2 <= -90.0)) -> "3"
+        ((d2 >= 60.0) && (d2 <= 75.0)) || ((d2 >= -90.0) && (d2 <= -75.0)) -> "4"
+        ((d2 >= 75.0) && (d2 <= 90.0)) || ((d2 >= -75.0) && (d2 <= -60.0)) -> "5"
+        ((d2 >= 90.0) && (d2 <= 105.0)) || ((d2 >= -60.0) && (d2 <= -45.0)) -> "6"
+        ((d2 >= 105.0) && (d2 <= 120.0)) || ((d2 >= -45.0) && (d2 <= -30.0)) -> "7"
+        ((d2 >= 120.0) && (d2 <= 135.0)) || ((d2 >= -30.0) && (d2 <= -15.0)) -> "8"
+        ((d2 >= 135.0) && (d2 <= 150.0)) || ((d2 >= -15.0) && (d2 <= 0.0)) -> "9"
+        else -> " "
+    }
+    return listOf(str5, str6, str38, str9)
+}
+
+/**
+ * Ported lines 917-1283: 3x3 parseInt3 five-branch (interior / west / east / north / south edges + corners).
+ * Returns 9 cell texts: [top-left, top-center, top-right, mid-left, center, mid-right, bottom-left, bottom-center, bottom-right].
+ */
+private fun buildGrids(str: String, str5: String, str2: String, str6: String, str3: String, str38: String): List<String> {
+    val parseInt = str2.toInt()
+    val parseInt2 = str6.toInt()
+    val str39 = str + str5
+    val str40 = str2 + str6
+    val parseInt3 = str40.toInt()
+    val str41 = str39 + str40
+    val g = MutableList(9) { "" }
+    fun fmt2(n: Int) = if (n <= 9) "0$n" else n.toString()
+    if ((parseInt > 0) && (parseInt < 9) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // Interior: digit pairs +-1
+        val i7 = parseInt3 + 1
+        val i8 = i7 - 10
+        val valueOf9 = fmt2(i8)
+        val str11 = i7.toString()
+        val valueOf18 = (i7 + 10).toString()
+        val i9 = parseInt3 - 10
+        val valueOf10 = fmt2(i9)
+        val valueOf19 = (parseInt3 + 10).toString()
+        val i10 = parseInt3 - 1
+        val i11 = i10 - 10
+        val valueOf11 = fmt2(i11)
+        val str14 = i10.toString()
+        val str15 = (i10 + 10).toString()
+        g[0] = str39 + valueOf9
+        g[1] = str39 + str11
+        g[2] = str39 + valueOf18
+        g[3] = str39 + valueOf10
+        g[4] = str41
+        g[5] = str39 + valueOf19
+        g[6] = str39 + valueOf11
+        g[7] = str39 + str14
+        g[8] = str39 + str15
+    } else if ((parseInt == 0) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // West edge: lon digit 0 -> 9, lon letter -1
+        val str43 = (str[0] - 1).toString() + str5
+        val str44 = "9" + (parseInt2 + 1)
+        val i12 = parseInt3 + 1
+        val valueOf7 = fmt2(i12)
+        val str12 = (i12 + 10).toString()
+        val sb4 = "9" + parseInt2
+        val valueOf20 = (parseInt3 + 10).toString()
+        val str46 = "9" + (parseInt2 - 1)
+        val i13 = parseInt3 - 1
+        val valueOf8 = fmt2(i13)
+        val str15 = (i13 + 10).toString()
+        g[0] = str43 + str44
+        g[1] = str39 + valueOf7
+        g[2] = str39 + str12
+        g[3] = str43 + sb4
+        g[4] = str41
+        g[5] = str39 + valueOf20
+        g[6] = str43 + str46
+        g[7] = str39 + valueOf8
+        g[8] = str39 + str15
+    } else if ((parseInt == 9) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // East edge: lon digit 9 -> 0, lon letter +1
+        val str47 = (str[0] + 1).toString() + str5
+        val i14 = parseInt3 + 1
+        val valueOf21 = (i14 - 10).toString()
+        val valueOf22 = i14.toString()
+        val str48 = "0" + (parseInt2 + 1)
+        val valueOf23 = (parseInt3 - 10).toString()
+        val str49 = "0" + parseInt2
+        val i15 = parseInt3 - 1
+        val valueOf24 = (i15 - 10).toString()
+        val valueOf25 = i15.toString()
+        val str15 = "0" + (parseInt2 - 1)
+        g[0] = str39 + valueOf21
+        g[1] = str39 + valueOf22
+        g[2] = str47 + str48
+        g[3] = str39 + valueOf23
+        g[4] = str41
+        g[5] = str47 + str49
+        g[6] = str39 + valueOf24
+        g[7] = str39 + valueOf25
+        g[8] = str47 + str15
+    } else if ((parseInt < 9) && (parseInt > 0) && (parseInt2 == 9)) {
+        // North edge: lat digit 9 -> 0, lat letter +1
+        val str50 = str + (str5[0] + 1).toString()
+        val i16 = parseInt3 - 9
+        val i17 = i16 - 10
+        val valueOf4 = fmt2(i17)
+        val valueOf26 = i16.toString()
+        val valueOf27 = (i16 + 10).toString()
+        val i18 = parseInt3 - 10
+        val valueOf5 = fmt2(i18)
+        val valueOf28 = (parseInt3 + 10).toString()
+        val i19 = parseInt3 - 1
+        val i20 = i19 - 10
+        val valueOf6 = fmt2(i20)
+        val str14 = i19.toString()
+        val str15 = (i19 + 10).toString()
+        g[0] = str39 + valueOf4
+        g[1] = str50 + valueOf26
+        g[2] = str39 + valueOf27
+        g[3] = str39 + valueOf5
+        g[4] = str41
+        g[5] = str39 + valueOf28
+        g[6] = str39 + valueOf6
+        g[7] = str39 + str14
+        g[8] = str39 + str15
+    } else if ((parseInt < 9) && (parseInt > 0) && (parseInt2 == 0)) {
+        // South edge: lat digit 0 -> 9, lat letter -1
+        val str52 = str + (str5[0] - 1).toString()
+        val i21 = parseInt3 + 1
+        val i22 = i21 - 10
+        val valueOf = fmt2(i22)
+        val valueOf29 = i21.toString()
+        val valueOf30 = (i21 + 10).toString()
+        val i23 = parseInt3 - 10
+        val valueOf2 = fmt2(i23)
+        val valueOf31 = (parseInt3 + 10).toString()
+        val i24 = parseInt3 - 1
+        val valueOf3 = fmt2(i24)
+        val str14 = (i24 + 10).toString()
+        val str15 = (i24 + 20).toString()
+        g[0] = str39 + valueOf
+        g[1] = str39 + valueOf29
+        g[2] = str39 + valueOf30
+        g[3] = str39 + valueOf2
+        g[4] = str41
+        g[5] = str39 + valueOf31
+        g[6] = str52 + valueOf3
+        g[7] = str52 + str14
+        g[8] = str52 + str15
+    } else if (parseInt3 == 0) {
+        // Corner 00: both digits -1 with carry
+        val v32 = (str[0] - 1).toString()
+        val v33 = (str5[0] - 1).toString()
+        g[0] = v32 + str5 + "91"
+        g[1] = str39 + "01"
+        g[2] = str39 + "11"
+        g[3] = v32 + str5 + "90"
+        g[4] = str41
+        g[5] = v32 + str5 + "10"
+        g[6] = v32 + v33 + "99"
+        g[7] = str + v33 + "09"
+        g[8] = str + v33 + "19"
+    } else if (parseInt3 == 9) {
+        // Corner 09: lon -1, lat +1
+        val v34 = (str[0] - 1).toString()
+        val v35 = (str5[0] + 1).toString()
+        g[0] = v34 + v35 + "90"
+        g[1] = str + v35 + "00"
+        g[2] = str + v35 + "10"
+        g[3] = v34 + str5 + "99"
+        g[4] = str41
+        g[5] = v34 + str5 + "19"
+        g[6] = v34 + str5 + "98"
+        g[7] = v34 + str5 + "08"
+        g[8] = v34 + str5 + "18"
+    } else if (parseInt3 == 99) {
+        // Corner 99: both digits +1 with carry
+        val v36 = (str[0] + 1).toString()
+        val v37 = (str5[0] + 1).toString()
+        g[0] = str + v37 + "80"
+        g[1] = str + v37 + "90"
+        g[2] = v36 + v37 + "00"
+        g[3] = str39 + "89"
+        g[4] = str41
+        g[5] = v36 + str5 + "09"
+        g[6] = str39 + "88"
+        g[7] = str39 + "98"
+        g[8] = v36 + str5 + "08"
+    } else if (parseInt3 == 90) {
+        // Corner 90: lon +1, lat -1
+        val v38 = (str[0] + 1).toString()
+        val v39 = (str5[0] - 1).toString()
+        g[0] = str39 + "81"
+        g[1] = str39 + "91"
+        g[2] = v38 + str5 + "01"
+        g[3] = str39 + "80"
+        g[4] = str41
+        g[5] = v38 + str5 + "00"
+        g[6] = str + v39 + "89"
+        g[7] = str + v39 + "99"
+        g[8] = v38 + v39 + "09"
+    }
+    return g
+}

feature/roaming/src/main/java/com/rtbishop/look4sat/feature/roaming/RoamingViewModel.kt

@@ -1,83 +0,0 @@
-/*
- * Look4Sat. Amateur radio satellite tracker and pass predictor.
- * Copyright (C) 2019-2026 Arty Bishop and contributors.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package com.rtbishop.look4sat.feature.roaming
-
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import androidx.lifecycle.viewmodel.initializer
-import androidx.lifecycle.viewmodel.viewModelFactory
-import com.rtbishop.look4sat.core.domain.predict.GeoPos
-import com.rtbishop.look4sat.core.domain.repository.IMainContainer
-import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
-import com.rtbishop.look4sat.core.domain.utility.positionToQth
-import com.rtbishop.look4sat.core.domain.utility.qthNeighbors
-import com.rtbishop.look4sat.core.domain.utility.qthToSquare
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.launch
-
-data class RoamingState(
-    val latitude: Double = 0.0,
-    val longitude: Double = 0.0,
-    val altitude: Double = 0.0,
-    val qthLocator: String = "----",
-    val gridSquares: List<String> = List(9) { "----" },
-    val isUpdating: Boolean = false,
-    val messageResId: Int = 0
-)
-
-class RoamingViewModel(private val settingsRepo: ISettingsRepo) : ViewModel() {
-
-    private val _uiState = MutableStateFlow(RoamingState())
-    val uiState: StateFlow<RoamingState> = _uiState
-
-    init {
-        viewModelScope.launch {
-            settingsRepo.stationPosition.collect { geoPos ->
-                _uiState.update { it.copy(isUpdating = false, messageResId = 0).withPosition(geoPos) }
-            }
-        }
-    }
-
-    fun onGpsClick() {
-        val success = settingsRepo.setStationPosition()
-        if (success) {
-            _uiState.update { it.copy(isUpdating = true) }
-        }
-    }
-
-    private fun RoamingState.withPosition(pos: GeoPos): RoamingState {
-        val locator = positionToQth(pos.latitude, pos.longitude) ?: return copy(qthLocator = "----")
-        val square = qthToSquare(locator)
-        val squares = if (square != "----") qthNeighbors(square) else List(9) { "----" }
-        return copy(
-            latitude = pos.latitude,
-            longitude = pos.longitude,
-            altitude = pos.altitude,
-            qthLocator = locator,
-            gridSquares = squares
-        )
-    }
-
-    companion object {
-        fun factory(container: IMainContainer) = viewModelFactory {
-            initializer { RoamingViewModel(container.settingsRepo) }
-        }
-    }
-}

feature/roaming/src/test/java/com/rtbishop/look4sat/feature/roaming/RoamingStateTest.kt

@@ -0,0 +1,124 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.feature.roaming
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class RoamingStateTest {
+
+    // User-verified coordinates (QTH Locator 2.0 screenshot): 22.314066 / 108.706575
+    private fun stateOf(lat: Double, lon: Double) =
+        roamingStateFromLocation(lat, lon, System.currentTimeMillis(), "21:")
+
+    @Test
+    fun `user coordinates produce OL42ih45`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals("OL42ih45", state.loc)
+    }
+
+    @Test
+    fun `red marker from ih pair matches reference lookup`() {
+        val state = stateOf(22.314066, 108.706575)
+        // Original lookup: lon 3rd pair 'i' -> leftMargin 65dp, lat 3rd pair 'h' -> topMargin 137dp
+        assertEquals(65, state.markerLeft)
+        assertEquals(137, state.markerTop)
+    }
+
+    @Test
+    fun `grid nine from OL42 matches reference`() {
+        val state = stateOf(22.314066, 108.706575)
+        val expected = listOf(
+            "OL33", "OL43", "OL53",
+            "OL32", "OL42", "OL52",
+            "OL31", "OL41", "OL51"
+        )
+        assertEquals(expected, state.grids)
+    }
+
+    @Test
+    fun `latitude dms formatting matches reference`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals("纬度  22° 18' 50\" N", state.latLabel)
+        assertEquals("22.314066° ", state.latValue)
+        assertEquals("经度 108° 42' 23\" E", state.lonLabel)
+        assertEquals("108.706575° ", state.lonValue)
+    }
+
+    @Test
+    fun `time is hour prefix plus fix minutes`() {
+        // fixTime = 2026-08-03 21:12:13 UTC+8 -> minutes 12
+        val fix = 1785820333000L // 2026-08-03 21:12:13 +0800
+        val state = roamingStateFromLocation(22.314066, 108.706575, fix, "21:")
+        assertEquals("21:12", state.time)
+    }
+
+    @Test
+    fun `west edge borrows lon letter`() {
+        // lon 0.5 lat 22.314066: digit pair 02, west edge parseInt==0
+        val state = stateOf(22.314066, 0.5)
+        assertEquals(8, state.loc.length)
+        // Left column lon 0->9, lon letter J-1=I: IL92
+        assertEquals("IL92", state.grids[3])
+    }
+
+    @Test
+    fun `north edge carries lat letter`() {
+        // lat 29.5 lon 108.706575: digit pair 49? -> lat digit 9 -> north edge
+        val state = stateOf(29.5, 108.706575)
+        assertEquals(8, state.loc.length)
+        // Top row lat +1 -> 0, lat letter +1 (M)
+        assertEquals("OM40", state.grids[1])
+    }
+
+    @Test
+    fun `east edge carries lon letter`() {
+        // lon 119.5 lat 22.314066: lon digit 9 -> east edge
+        val state = stateOf(22.314066, 119.5)
+        assertEquals(8, state.loc.length)
+        // Top-right lon 9->0, lon letter O+1=P, lat 2+1=3: PL03
+        assertEquals("PL03", state.grids[2])
+    }
+
+    @Test
+    fun `south edge borrows lat letter`() {
+        // lat 0.5 lon 108.706575: lat digit 0 -> south edge
+        val state = stateOf(0.5, 108.706575)
+        assertEquals(8, state.loc.length)
+        // Bottom-center lat 0->9, lat letter J-1=I: OI49
+        assertEquals("OI49", state.grids[7])
+    }
+
+    @Test
+    fun `boundary values wrap like reference`() {
+        // (90, 180) -> RR99xx99 (original range-lookup behavior)
+        val state = stateOf(90.0, 180.0)
+        assertEquals("RR99xx99", state.loc)
+    }
+
+    @Test
+    fun `gps state after fix matches showLocation`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals(true, state.gpsOn)
+        assertEquals(false, state.gpsOff)
+        assertEquals(false, state.showSettings)
+        assertEquals(false, state.showProgress)
+        assertEquals(false, state.showNotice)
+        assertEquals(true, state.showDate)
+    }
+}

feature/settings/build.gradle.kts

@@ -5,3 +5,7 @@ plugins {
 android {
     namespace = "com.rtbishop.look4sat.feature.settings"
 }
+
+dependencies {
+    implementation(project(":core:data"))
+}

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/AprsCard.kt

@@ -0,0 +1,316 @@
+package com.rtbishop.look4sat.feature.settings
+
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LocalTextStyle
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.compose.runtime.setValue
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.rtbishop.look4sat.core.data.aprs.AprsConfig
+import com.rtbishop.look4sat.core.domain.aprs.AprsPacket
+import com.rtbishop.look4sat.core.data.aprs.AprsStore
+import com.rtbishop.look4sat.core.presentation.CardButton
+import com.rtbishop.look4sat.core.presentation.R
+
+/** APRS card: sits between the satellite-data and data-output containers; settings live in a gear dialog to save space */
+@Composable
+fun AprsCard() {
+    val context = LocalContext.current
+    var config by remember { mutableStateOf(AprsStore.loadConfig(context)) }
+    var showDialog by remember { mutableStateOf(false) }
+    var lastReport by remember { mutableStateOf(AprsStore.loadLastReport(context)) }
+    var reportPing by remember { mutableStateOf(0) }
+    val notifPermissionLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { }
+    fun requestNotifPermissionIfNeeded() {
+        if (Build.VERSION.SDK_INT >= 33 &&
+            context.checkSelfPermission(android.Manifest.permission.POST_NOTIFICATIONS) !=
+            PackageManager.PERMISSION_GRANTED
+        ) {
+            notifPermissionLauncher.launch(android.Manifest.permission.POST_NOTIFICATIONS)
+        }
+    }
+
+    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            // Title row: title + gear key (dialog, space-saving)
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                Text(
+                    text = stringResource(id = R.string.prefs_aprs_title),
+                    color = MaterialTheme.colorScheme.primary
+                )
+                IconButton(onClick = { showDialog = true }) {
+                    Text(
+                        text = "\u2699", // ⚙
+                        color = MaterialTheme.colorScheme.primary,
+                        fontSize = 18.sp
+                    )
+                }
+            }
+            // Enable switch
+            AprsSwitchRow(R.string.prefs_aprs_enable, config.enabled) { enabled ->
+                config = config.copy(enabled = enabled)
+                AprsStore.saveConfig(context, config)
+                if (enabled) requestNotifPermissionIfNeeded()
+                val intent = Intent()
+                    .setClassName(context.packageName, AprsStore.SERVICE_CLASS)
+                    .setAction(if (enabled) AprsStore.ACTION_START else AprsStore.ACTION_STOP)
+                if (enabled) context.startForegroundService(intent) else context.startService(intent)
+            }
+            // Compact info row (not crowded)
+            Text(
+                text = stringResource(
+                    id = R.string.prefs_aprs_summary,
+                    config.server, config.port,
+                    if (config.callsign.isBlank()) "-" else config.callsign
+                ),
+                fontSize = 13.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            // Last-report status row
+            val lr = lastReport
+            if (lr.time > 0L) {
+                val timeStr = java.text.SimpleDateFormat("HH:mm:ss", java.util.Locale.getDefault())
+                    .format(java.util.Date(lr.time))
+                Text(
+                    text = stringResource(
+                        id = R.string.prefs_aprs_last_report,
+                        timeStr,
+                        if (lr.ok) stringResource(R.string.prefs_aprs_last_ok)
+                        else stringResource(R.string.prefs_aprs_last_fail, lr.detail)
+                    ),
+                    fontSize = 13.sp,
+                    color = if (lr.ok) MaterialTheme.colorScheme.primary
+                    else MaterialTheme.colorScheme.error
+                )
+            }
+            // Manual report button
+            CardButton(
+                onClick = {
+                    val intent = Intent()
+                        .setClassName(context.packageName, AprsStore.SERVICE_CLASS)
+                        .setAction(AprsStore.ACTION_REPORT_NOW)
+                    context.startForegroundService(intent)
+                    reportPing++
+                },
+                text = stringResource(id = R.string.prefs_aprs_report_now),
+                modifier = Modifier.fillMaxWidth()
+            )
+        }
+    }
+    // Refresh the status row after reporting (wait for the result to persist)
+    androidx.compose.runtime.LaunchedEffect(reportPing) {
+        if (reportPing > 0) {
+            kotlinx.coroutines.delay(6000)
+            lastReport = AprsStore.loadLastReport(context)
+        }
+    }
+    if (showDialog) {
+        AprsSettingsDialog(
+            config = config,
+            onDismiss = { showDialog = false },
+            onSave = { newConfig ->
+                config = newConfig
+                AprsStore.saveConfig(context, newConfig)
+                // Apply new config when enabled (restart the service)
+                if (newConfig.enabled) {
+                    context.startService(
+                        Intent().setClassName(context.packageName, AprsStore.SERVICE_CLASS)
+                            .setAction(AprsStore.ACTION_STOP)
+                    )
+                    context.startForegroundService(
+                        Intent().setClassName(context.packageName, AprsStore.SERVICE_CLASS)
+                            .setAction(AprsStore.ACTION_START)
+                    )
+                }
+                showDialog = false
+            }
+        )
+    }
+}
+
+/** APRS settings dialog (plenty of room, full config) */
+@Composable
+private fun AprsSettingsDialog(
+    config: AprsConfig,
+    onDismiss: () -> Unit,
+    onSave: (AprsConfig) -> Unit
+) {
+    var server by remember { mutableStateOf(config.server) }
+    var port by remember { mutableStateOf(config.port.toString()) }
+    var callsign by remember { mutableStateOf(config.callsign) }
+    var ssid by remember { mutableStateOf(config.ssid) }
+    var passcode by remember { mutableStateOf(config.passcode) }
+    var interval by remember { mutableStateOf(config.intervalMin.toString()) }
+    var status by remember { mutableStateOf(config.statusText) }
+    var symbolTable by remember { mutableStateOf(config.symbolTable) }
+    var symbolCode by remember { mutableStateOf(config.symbolCode) }
+    val textStyle = LocalTextStyle.current.copy(fontSize = 14.sp)
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(stringResource(id = R.string.prefs_aprs_settings_title)) },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(6.dp)) {
+                OutlinedTextField(
+                    value = server,
+                    onValueChange = { server = it },
+                    label = { Text(stringResource(id = R.string.prefs_aprs_server)) },
+                    singleLine = true,
+                    textStyle = textStyle
+                )
+                OutlinedTextField(
+                    value = port,
+                    onValueChange = { port = it },
+                    label = { Text(stringResource(id = R.string.prefs_aprs_port)) },
+                    singleLine = true,
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                    textStyle = textStyle
+                )
+                OutlinedTextField(
+                    value = callsign,
+                    onValueChange = { callsign = it },
+                    label = { Text(stringResource(id = R.string.prefs_aprs_callsign)) },
+                    singleLine = true,
+                    textStyle = textStyle
+                )
+                // Passcode compute button (user request: let the user see the computed result)
+                TextButton(
+                    onClick = {
+                        val call = callsign.trim().uppercase()
+                        if (call.isNotBlank()) {
+                            passcode = AprsPacket.passcode(call).toString()
+                        }
+                    },
+                    enabled = callsign.trim().isNotBlank()
+                ) { Text(stringResource(id = R.string.prefs_aprs_calc_passcode)) }
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    OutlinedTextField(
+                        value = ssid,
+                        onValueChange = { ssid = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_ssid)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        textStyle = textStyle
+                    )
+                    OutlinedTextField(
+                        value = passcode,
+                        onValueChange = { passcode = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_passcode)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        textStyle = textStyle
+                    )
+                }
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    OutlinedTextField(
+                        value = interval,
+                        onValueChange = { interval = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_interval)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                        textStyle = textStyle
+                    )
+                    OutlinedTextField(
+                        value = status,
+                        onValueChange = { status = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_status)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        textStyle = textStyle
+                    )
+                }
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    OutlinedTextField(
+                        value = symbolTable,
+                        onValueChange = { symbolTable = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_symbol_table)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        textStyle = textStyle
+                    )
+                    OutlinedTextField(
+                        value = symbolCode,
+                        onValueChange = { symbolCode = it },
+                        label = { Text(stringResource(id = R.string.prefs_aprs_symbol_code)) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        textStyle = textStyle
+                    )
+                }
+                Text(
+                    text = stringResource(id = R.string.prefs_aprs_passcode_hint),
+                    fontSize = 12.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = {
+                onSave(
+                    config.copy(
+                        server = server.ifBlank { "euro.aprs2.net" },
+                        port = port.toIntOrNull() ?: 14580,
+                        callsign = callsign.trim().uppercase(),
+                        ssid = ssid.trim(),
+                        passcode = passcode.trim(),
+                        intervalMin = interval.toIntOrNull() ?: 5,
+                        statusText = status,
+                        symbolTable = symbolTable.ifBlank { "/" },
+                        symbolCode = symbolCode.ifBlank { ">" }
+                    )
+                )
+            }) { Text(stringResource(id = R.string.prefs_aprs_save)) }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(id = R.string.prefs_aprs_cancel)) }
+        }
+    )
+}
+
+/** Switch row local to this file (same as SettingsScreen's private SwitchRow) */
+@Composable
+private fun AprsSwitchRow(labelResId: Int, checked: Boolean, onCheckedChange: ((Boolean) -> Unit)?) {
+    Row(
+        horizontalArrangement = Arrangement.SpaceBetween,
+        verticalAlignment = Alignment.CenterVertically,
+        modifier = Modifier.fillMaxWidth()
+    ) {
+        Text(text = stringResource(id = labelResId))
+        Switch(checked = checked, onCheckedChange = onCheckedChange)
+    }
+}

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsDialog.kt

@@ -30,6 +30,8 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
@@ -41,11 +43,13 @@ import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.rtbishop.look4sat.core.domain.model.RCSettings
+import com.rtbishop.look4sat.core.domain.source.Sources
 import com.rtbishop.look4sat.core.domain.model.RadioControlSettings
 import com.rtbishop.look4sat.core.presentation.CardButton
 import com.rtbishop.look4sat.core.presentation.LocalSpacing
@@ -203,6 +207,17 @@ fun DataSourcesDialog(
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth(),
                 enabled = isEnabledCustomTle.value,
+                trailingIcon = {
+                    IconButton(
+                        onClick = { urlTle.value = Sources.defaultTleUrl },
+                        enabled = isEnabledCustomTle.value
+                    ) {
+                        Icon(
+                            painter = painterResource(id = R.drawable.ic_reset),
+                            contentDescription = stringResource(id = R.string.prefs_data_reset_url)
+                        )
+                    }
+                },
             )
             Spacer(modifier = Modifier.height(6.dp))
             Row(
@@ -232,6 +247,17 @@ fun DataSourcesDialog(
                 singleLine = true,
                 modifier = Modifier.fillMaxWidth(),
                 enabled = isEnabledCustomTransceivers.value,
+                trailingIcon = {
+                    IconButton(
+                        onClick = { urlTransceivers.value = Sources.defaultTransceiversUrl },
+                        enabled = isEnabledCustomTransceivers.value
+                    ) {
+                        Icon(
+                            painter = painterResource(id = R.drawable.ic_reset),
+                            contentDescription = stringResource(id = R.string.prefs_data_reset_url)
+                        )
+                    }
+                },
             )
             Spacer(modifier = Modifier.height(12.dp))
         }

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsScreen.kt

@@ -22,39 +22,72 @@ import android.os.Build
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.gestures.detectDragGestures
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.lazy.grid.GridCells
+import android.content.Context
 import androidx.compose.foundation.lazy.grid.GridItemSpan
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.ElevatedCard
 import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Switch
+import androidx.compose.material3.LocalTextStyle
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.Stable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.saveable.rememberSaveable
+import kotlin.math.roundToInt
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
+import androidx.compose.ui.zIndex
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -72,10 +105,13 @@ import com.rtbishop.look4sat.core.presentation.R
 import com.rtbishop.look4sat.core.presentation.ScreenColumn
 import com.rtbishop.look4sat.core.presentation.TopBar
 import com.rtbishop.look4sat.core.presentation.infiniteMarquee
+import com.rtbishop.look4sat.core.presentation.defaultScreenOrder
+import com.rtbishop.look4sat.core.presentation.defaultSubMenuOrder
 import com.rtbishop.look4sat.core.presentation.isVerticalLayout
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
+import kotlinx.coroutines.launch
 
 @Composable
 fun SettingsDestination() {
@@ -83,11 +119,72 @@ fun SettingsDestination() {
     val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel: SettingsViewModel = viewModel(factory = SettingsViewModel.factory(container))
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
-    SettingsScreen(uiState, viewModel::onAction)
+    SettingsScreen(uiState, viewModel::onAction, container.provideLotwSatellitesRepo())
+
+    // WaveLog grid mismatch confirmation dialog (4.5.2)
+    val gridConfirm = viewModel.gridConfirm
+    if (gridConfirm != null) {
+        AlertDialog(
+            onDismissRequest = { viewModel.resolveGridConfirm(false) },
+            title = { Text(text = stringResource(id = R.string.wavelog_title)) },
+            text = {
+                Text(
+                    text = stringResource(
+                        id = R.string.wavelog_grid_mismatch,
+                        gridConfirm.userGrid.take(4),
+                        gridConfirm.stationGrid.take(4)
+                    )
+                )
+            },
+            confirmButton = {
+                TextButton(onClick = { viewModel.resolveGridConfirm(true) }) {
+                    Text(text = stringResource(id = R.string.wavelog_ignore))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = { viewModel.resolveGridConfirm(false) }) {
+                    Text(text = stringResource(id = R.string.wavelog_cancel))
+                }
+            }
+        )
+    }
+
+    // WaveLog error detail dialog (one-tap copy)
+    val wavelogError = viewModel.wavelogError
+    if (wavelogError != null) {
+        AlertDialog(
+            onDismissRequest = { viewModel.wavelogError = null },
+            title = { Text(text = stringResource(id = R.string.wavelog_title)) },
+            text = {
+                Text(
+                    text = wavelogError,
+                    fontSize = 13.sp
+                )
+            },
+            confirmButton = {
+                TextButton(onClick = {
+                    val clipboard = context.getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
+                    clipboard.setPrimaryClip(android.content.ClipData.newPlainText("WaveLog error", wavelogError))
+                    viewModel.wavelogError = null
+                }) {
+                    Text(text = stringResource(id = R.string.wavelog_copy))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = { viewModel.wavelogError = null }) {
+                    Text(text = stringResource(id = R.string.btn_cancel))
+                }
+            }
+        )
+    }
 }
 
 @Composable
-private fun SettingsScreen(uiState: SettingsState, onAction: (SettingsAction) -> Unit) {
+private fun SettingsScreen(
+    uiState: SettingsState,
+    onAction: (SettingsAction) -> Unit,
+    lotwRepo: com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo
+) {
     val dialogs = rememberDialogVisibility()
     val pendingCustomSourcesGrant = remember { mutableStateOf<(() -> Unit)?>(null) }
     val pendingCustomSourcesDeny = remember { mutableStateOf<(() -> Unit)?>(null) }
@@ -291,6 +388,9 @@ private fun SettingsScreen(uiState: SettingsState, onAction: (SettingsAction) ->
                     showDataSourcesDialog = { dialogs.dataSources = true }
                 )
             }
+            item(span = { GridItemSpan(maxLineSpan) }) {
+                AprsCard()
+            }
             item(span = { GridItemSpan(maxLineSpan) }) {
                 OutputCard(
                     onNetworkClick = permissions.launchNetwork,
@@ -299,6 +399,18 @@ private fun SettingsScreen(uiState: SettingsState, onAction: (SettingsAction) ->
                 )
             }
             item { OtherCard(uiState.otherSettings, onAction) }
+            item { WavelogCard(uiState.otherSettings, onAction, lotwRepo) }
+            item {
+                UiSettingsCard(
+                    hiddenScreens = uiState.otherSettings.hiddenScreens,
+                    screenOrder = uiState.otherSettings.screenOrder,
+                    subMenuOrder = uiState.otherSettings.subMenuOrder,
+                    onToggle = { name -> onAction(SettingsAction.ToggleScreen(name)) },
+                    onReorder = { order -> onAction(SettingsAction.ReorderScreens(order)) },
+                    onResetOrder = { onAction(SettingsAction.ResetMenuOrder) },
+                    onUpdateMenu = { main, sub -> onAction(SettingsAction.UpdateMenuOrder(main, sub)) }
+                )
+            }
             item { CardCredits() }
         }
     }
@@ -337,11 +449,11 @@ private fun LocationCard(
             Text(text = formatUpdateTime(updateTime = settings.stationPos.timestamp))
             Spacer(modifier = Modifier.height(2.dp))
             Row(horizontalArrangement = Arrangement.SpaceBetween, modifier = Modifier.fillMaxWidth()) {
-                Text(text = "Lat: ${settings.stationPos.latitude}°")
+                Text(text = stringResource(R.string.loc_lat_text, settings.stationPos.latitude))
-                Text(text = "Lon: ${settings.stationPos.longitude}°")
+                Text(text = stringResource(R.string.loc_lon_text, settings.stationPos.longitude))
             }
             Row(horizontalArrangement = Arrangement.SpaceBetween, modifier = Modifier.fillMaxWidth()) {
-                Text(text = "Qth: ${settings.stationPos.qthLocator}")
+                Text(text = stringResource(R.string.loc_qth_text, settings.stationPos.qthLocator))
             }
             Spacer(modifier = Modifier.height(1.dp))
             Row(horizontalArrangement = Arrangement.SpaceEvenly) {
@@ -486,11 +598,12 @@ private fun OtherCardPreview() = MainTheme {
 @Composable
 private fun OtherCard(settings: OtherSettings, onAction: (SettingsAction) -> Unit) {
     ElevatedCard(
-        modifier = Modifier
+        modifier = Modifier.fillMaxWidth()
-            .fillMaxWidth()
+    ) {
-            .height(268.dp)
+        Column(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
         ) {
-        Column(modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp)) {
             Text(
                 text = stringResource(id = R.string.prefs_other_title),
                 color = MaterialTheme.colorScheme.primary
@@ -514,8 +627,389 @@ private fun OtherCard(settings: OtherSettings, onAction: (SettingsAction) -> Uni
     }
 }
 
+/**
+ * UI settings card: controls which pages appear in the bottom menu bar.
+ * Order is fixed (Satellites/Passes/Radar/Mutual/Roaming/Map/Settings); turning one off makes the rest close up;
+ * the Settings page is always shown (so the settings entry can't be lost).
+ */
+/** WaveLog log server settings card (4.5.2): matches the user's screenshot (dark card / label left, input right / button row) */
 @Composable
-private fun SwitchRow(labelResId: Int, checked: Boolean, onCheckedChange: (Boolean) -> Unit) {
+private fun WavelogCard(
+    settings: OtherSettings,
+    onAction: (SettingsAction) -> Unit,
+    lotwRepo: com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo
+) {
+    val qrzContext = LocalContext.current
+    var showQrzDialog by remember { mutableStateOf(false) }
+    var qrzCookie by remember {
+        mutableStateOf(
+            qrzContext.getSharedPreferences("qrz_cookie", android.content.Context.MODE_PRIVATE)
+                .getString("cookie", "") ?: ""
+        )
+    }
+    var qrzTestResult by remember { mutableStateOf<String?>(null) }
+    var qrzTesting by remember { mutableStateOf(false) }
+    val qrzScope = rememberCoroutineScope()
+    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                Text(
+                    text = stringResource(id = R.string.prefs_wavelog_title),
+                    color = MaterialTheme.colorScheme.primary,
+                    modifier = Modifier.weight(1f)
+                )
+                IconButton(onClick = { showQrzDialog = true }) {
+                    Text("\u2699")
+                }
+            }
+            OutlinedTextField(
+                value = settings.wavelogUrl,
+                onValueChange = {
+                    onAction(SettingsAction.UpdateWavelogSettings(it, settings.wavelogApiKey, settings.wavelogStationId, settings.wavelogAutoUpload))
+                },
+                label = { Text(stringResource(id = R.string.prefs_wavelog_url_hint)) },
+                singleLine = true,
+                textStyle = LocalTextStyle.current.copy(fontSize = 14.sp),
+                modifier = Modifier.fillMaxWidth()
+            )
+            OutlinedTextField(
+                value = settings.wavelogApiKey,
+                onValueChange = {
+                    onAction(SettingsAction.UpdateWavelogSettings(settings.wavelogUrl, it, settings.wavelogStationId, settings.wavelogAutoUpload))
+                },
+                label = { Text(stringResource(id = R.string.prefs_wavelog_key_hint)) },
+                singleLine = true,
+                textStyle = LocalTextStyle.current.copy(fontSize = 14.sp),
+                visualTransformation = PasswordVisualTransformation(),
+                modifier = Modifier.fillMaxWidth()
+            )
+            OutlinedTextField(
+                value = settings.wavelogStationId,
+                onValueChange = {
+                    onAction(SettingsAction.UpdateWavelogSettings(settings.wavelogUrl, settings.wavelogApiKey, it, settings.wavelogAutoUpload))
+                },
+                label = { Text(stringResource(id = R.string.prefs_wavelog_station_hint)) },
+                singleLine = true,
+                textStyle = LocalTextStyle.current.copy(fontSize = 14.sp),
+                modifier = Modifier.fillMaxWidth()
+            )
+            SwitchRow(R.string.prefs_wavelog_auto, settings.wavelogAutoUpload) {
+                onAction(SettingsAction.UpdateWavelogSettings(settings.wavelogUrl, settings.wavelogApiKey, settings.wavelogStationId, it))
+            }
+            Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                CardButton(
+                    onClick = { onAction(SettingsAction.TestWavelogConnection) },
+                    text = stringResource(id = R.string.prefs_wavelog_test),
+                    modifier = Modifier.weight(1f)
+                )
+                CardButton(
+                    onClick = { onAction(SettingsAction.UpdateLotwSatellites) },
+                    text = stringResource(id = R.string.prefs_wavelog_update_sats),
+                    modifier = Modifier.weight(1f)
+                )
+                CardButton(
+                    onClick = { onAction(SettingsAction.UploadWavelogQueue) },
+                    text = stringResource(id = R.string.prefs_wavelog_upload),
+                    modifier = Modifier.weight(1f)
+                )
+            }
+        }
+    }
+    if (showQrzDialog) {
+        AlertDialog(
+            onDismissRequest = { showQrzDialog = false },
+            title = { Text(text = stringResource(id = R.string.prefs_wavelog_qrz_title)) },
+            text = {
+                Column(verticalArrangement = Arrangement.spacedBy(6.dp)) {
+                    Text(
+                        text = stringResource(id = R.string.prefs_wavelog_qrz_hint),
+                        fontSize = 12.sp
+                    )
+                    OutlinedTextField(
+                        value = qrzCookie,
+                        onValueChange = { qrzCookie = it },
+                        label = { Text(stringResource(id = R.string.prefs_wavelog_qrz_label)) },
+                        minLines = 3,
+                        maxLines = 8,
+                        textStyle = LocalTextStyle.current.copy(fontSize = 12.sp),
+                        modifier = Modifier.fillMaxWidth()
+                    )
+                    if (qrzTestResult != null) {
+                        Text(
+                            text = qrzTestResult!!,
+                            fontSize = 13.sp,
+                            color = MaterialTheme.colorScheme.primary
+                        )
+                    }
+                    TextButton(
+                        onClick = {
+                            qrzTesting = true
+                            qrzTestResult = null
+                            qrzScope.launch {
+                                val header = com.rtbishop.look4sat.core.domain.qrz.QrzGridClient.parseCookies(qrzCookie)
+                                if (header.isBlank()) {
+                                    qrzTestResult = "Cookie 为空, 请先粘贴"
+                                    qrzTesting = false
+                                    return@launch
+                                }
+                                val own = com.rtbishop.look4sat.core.domain.qrz.QrzGridClient.fetchOwnCallsign(header)
+                                if (own == null) {
+                                    qrzTestResult = "Cookie 无效或已过期(无法识别登录呼号)"
+                                } else {
+                                    val grid = com.rtbishop.look4sat.core.domain.qrz.QrzGridClient.lookupGrid(own, header)
+                                    qrzTestResult = if (grid != null) {
+                                        "登录呼号: $own  网格: $grid ✅"
+                                    } else {
+                                        "登录呼号: $own  网格: 未填写"
+                                    }
+                                }
+                                qrzTesting = false
+                            }
+                        },
+                        enabled = !qrzTesting
+                    ) {
+                        Text(text = if (qrzTesting) "测试中…" else "测试查询")
+                    }
+                }
+            },
+            confirmButton = {
+                TextButton(onClick = {
+                    qrzContext.getSharedPreferences("qrz_cookie", android.content.Context.MODE_PRIVATE)
+                        .edit().putString("cookie", qrzCookie.trim()).apply()
+                    showQrzDialog = false
+                }) { Text(text = stringResource(id = R.string.btn_accept)) }
+            },
+            dismissButton = {
+                TextButton(onClick = { showQrzDialog = false }) {
+                    Text(text = stringResource(id = R.string.wavelog_cancel))
+                }
+            }
+        )
+    }
+}
+
+@Composable
+private fun UiSettingsCard(
+    hiddenScreens: List<String>,
+    screenOrder: List<String>,
+    subMenuOrder: List<String>,
+    onToggle: (String) -> Unit,
+    onReorder: (List<String>) -> Unit,
+    onResetOrder: () -> Unit,
+    onUpdateMenu: (List<String>, List<String>) -> Unit
+) {
+    val screens = listOf(
+        R.string.nav_sat to "Satellites",
+        R.string.nav_pass to "Passes",
+        R.string.nav_radar to "Radar",
+        R.string.nav_mutual to "Mutual",
+        R.string.nav_roaming to "Roaming",
+        R.string.nav_cw to "CwDecode",
+        R.string.nav_log to "WavelogLog",
+        R.string.nav_amsat to "AMSAT",
+        R.string.nav_map to "Map",
+        R.string.nav_prefs to "Settings"
+    ) // name 必须与 Screen.screenId 一致 (R8 安全)
+    // Main menu items: exclude sub-menu items; Settings pinned last
+    val mainItems = remember(screens, screenOrder, subMenuOrder) {
+        val sub = subMenuOrder.ifEmpty { defaultSubMenuOrder }
+        screens.map { it.second }
+            .filter { it !in sub }
+            .sortedBy { name ->
+                screenOrder.indexOf(name).let { idx ->
+                    if (idx != -1) idx else defaultScreenOrder.indexOf(name).let {
+                        if (it != -1) it else Int.MAX_VALUE
+                    }
+                }
+            }
+            .sortedWith(compareBy { if (it == "Settings") 1 else 0 })
+    }
+    // More-menu items
+    val subItems = remember(screens, subMenuOrder) {
+        val sub = subMenuOrder.ifEmpty { defaultSubMenuOrder }
+        sub.filter { s -> screens.any { (_, name) -> name == s } }
+    }
+    ElevatedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            Text(
+                text = stringResource(id = R.string.prefs_ui_title),
+                color = MaterialTheme.colorScheme.primary
+            )
+            screens.forEach { (labelRes, name) ->
+                if (name == "Settings") {
+                    // Settings always shown; its switch is disabled
+                    SwitchRow(labelRes, true, null)
+                } else {
+                    SwitchRow(labelRes, name !in hiddenScreens) {
+                        onToggle(name)
+                    }
+                }
+            }
+            Text(
+                text = stringResource(id = R.string.prefs_ui_order_title),
+                color = MaterialTheme.colorScheme.primary
+            )
+            // Main menu area (bottom bar, max 5 items, Settings locked last)
+            Text(
+                text = stringResource(id = R.string.prefs_ui_main_title),
+                fontSize = 12.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            DragOrderList(
+                items = mainItems,
+                labels = screens,
+                locked = setOf("Settings"),
+                moveLabel = stringResource(id = R.string.prefs_ui_move_out),
+                moveEnabled = { name -> name != "Settings" },
+                onMove = { name ->
+                    onUpdateMenu(
+                        mainItems.filter { it != name },
+                        (subMenuOrder.ifEmpty { defaultSubMenuOrder } + name).distinct()
+                    )
+                },
+                onReorder = { main -> onUpdateMenu(main, subMenuOrder) }
+            )
+            // More-menu area (pages behind "More")
+            Text(
+                text = stringResource(id = R.string.prefs_ui_sub_title),
+                fontSize = 12.sp,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            DragOrderList(
+                items = subItems,
+                labels = screens,
+                moveLabel = stringResource(id = R.string.prefs_ui_move_back),
+                // Buttons always visible; when the main menu hits 5, the last non-Settings item moves to More (swap)
+                moveEnabled = { true },
+                onMove = { name ->
+                    val mainWithoutSettings = mainItems.filter { it != "Settings" }
+                    val needSwap = mainWithoutSettings.size >= 5
+                    val evicted = if (needSwap) mainWithoutSettings.last() else null
+                    val newMain = if (needSwap) {
+                        (mainWithoutSettings.dropLast(1) + name).distinct()
+                    } else {
+                        (mainWithoutSettings + name).distinct()
+                    }
+                    val newSub = (subItems.filter { it != name } +
+                        if (evicted != null) listOf(evicted) else emptyList()).distinct()
+                    onUpdateMenu(newMain, newSub)
+                },
+                onReorder = { sub -> onUpdateMenu(screenOrder, sub) }
+            )
+            TextButton(onClick = onResetOrder) {
+                Text(text = stringResource(id = R.string.prefs_ui_order_reset))
+            }
+        }
+    }
+}
+
+/** Page-order drag list: handle on each row's right; drag up/down to reorder live; persists on release */
+@Composable
+private fun DragOrderList(
+    items: List<String>,
+    labels: List<Pair<Int, String>>,
+    locked: Set<String> = emptySet(),
+    moveLabel: String? = null,
+    moveEnabled: (String) -> Boolean = { true },
+    onMove: ((String) -> Unit)? = null,
+    onReorder: (List<String>) -> Unit
+) {
+    val itemHeight = 48.dp
+    val itemHeightPx = with(LocalDensity.current) { itemHeight.toPx() }
+    val listState = rememberLazyListState()
+    val localItems = remember(items) { mutableStateListOf<String>().apply { addAll(items) } }
+    var draggingIndex by remember { mutableIntStateOf(-1) }
+    var dragOffset by remember { mutableStateOf(0f) }
+
+    // Fixed height: nested inside LazyVerticalGrid it needs a bounded height or infinite constraints crash
+    LazyColumn(
+        state = listState,
+        modifier = Modifier
+            .fillMaxWidth()
+            .height(itemHeight * localItems.size)
+    ) {
+        itemsIndexed(localItems, key = { _, name -> name }) { index, name ->
+            val isDragging = draggingIndex == index
+            val isLocked = name in locked
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(itemHeight)
+                    .zIndex(if (isDragging) 1f else 0f)
+                    .graphicsLayer { translationY = if (isDragging) dragOffset else 0f }
+                    .animateItem()
+            ) {
+                Text(
+                    text = stringResource(id = labels.first { it.second == name }.first),
+                    modifier = Modifier.weight(1f)
+                )
+                if (moveLabel != null && onMove != null && moveEnabled(name)) {
+                    TextButton(onClick = { onMove(name) }, contentPadding = PaddingValues(horizontal = 4.dp)) {
+                        Text(moveLabel, fontSize = 11.sp)
+                    }
+                }
+                if (isLocked) {
+                    // Locked row (Settings): no handle, pinned last
+                    Text(
+                        text = stringResource(id = R.string.prefs_ui_order_locked),
+                        fontSize = 11.sp,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+                } else {
+                    Box(
+                        modifier = Modifier
+                            .size(48.dp)
+                            .padding(20.dp)
+                            .pointerInput(name) {
+                                detectDragGestures(
+                                    onDragStart = { draggingIndex = localItems.indexOf(name) },
+                                    onDrag = { change, dragAmount ->
+                                        change.consume()
+                                        dragOffset += dragAmount.y
+                                        val currentIndex = draggingIndex
+                                        val target = (currentIndex + (dragOffset / itemHeightPx).roundToInt())
+                                            .coerceIn(0, localItems.size - 1)
+                                        if (target != currentIndex) {
+                                            localItems.add(target, localItems.removeAt(currentIndex))
+                                            dragOffset += (currentIndex - target) * itemHeightPx
+                                            draggingIndex = target
+                                        }
+                                    },
+                                    onDragEnd = {
+                                        onReorder(localItems.toList())
+                                        draggingIndex = -1
+                                        dragOffset = 0f
+                                    },
+                                    onDragCancel = {
+                                        draggingIndex = -1
+                                        dragOffset = 0f
+                                    }
+                                )
+                            }
+                    ) {
+                        // Dot handle (touch area padding 20dp centered -> 8dp dot)
+                        Box(
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .background(MaterialTheme.colorScheme.onSurfaceVariant, CircleShape)
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SwitchRow(labelResId: Int, checked: Boolean, onCheckedChange: ((Boolean) -> Unit)?) {
     Row(
         horizontalArrangement = Arrangement.SpaceBetween,
         verticalAlignment = Alignment.CenterVertically,
@@ -558,15 +1052,11 @@ private fun CardCreditsPreview() = MainTheme { CardCredits() }
 @Composable
 private fun CardCredits(modifier: Modifier = Modifier) {
     ElevatedCard(
-        modifier = modifier
+        modifier = modifier.fillMaxWidth()
-            .fillMaxWidth()
-            .height(268.dp)
     ) {
         Column(
-            verticalArrangement = Arrangement.SpaceBetween,
+            verticalArrangement = Arrangement.spacedBy(8.dp),
-            modifier = Modifier
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp)
-                .padding(horizontal = 8.dp, vertical = 4.dp)
-                .fillMaxHeight()
         ) {
             Text(
                 text = stringResource(id = R.string.prefs_outro_title),
@@ -575,6 +1065,8 @@ private fun CardCredits(modifier: Modifier = Modifier) {
             Text(
                 text = stringResource(id = R.string.prefs_outro_thanks)
             )
+            // Keep roughly two lines of spacing between the thanks list and the license block (user request)
+            Spacer(modifier = Modifier.height(24.dp))
             Text(
                 text = stringResource(id = R.string.prefs_outro_license),
                 color = MaterialTheme.colorScheme.primary
@@ -590,7 +1082,7 @@ private fun TopCard(onClick: () -> Unit, modifier: Modifier = Modifier, version:
             horizontalArrangement = Arrangement.spacedBy(12.dp),
             verticalAlignment = Alignment.CenterVertically,
             modifier = Modifier
-                .height(48.dp)
+                .heightIn(min = 48.dp)
                 .clickable { onClick() }) {
             Spacer(Modifier)
             Icon(
@@ -605,7 +1097,6 @@ private fun TopCard(onClick: () -> Unit, modifier: Modifier = Modifier, version:
                 modifier = Modifier
                     .weight(1f)
                     .padding(end = 6.dp)
-                    .infiniteMarquee()
             )
         }
     }

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsState.kt

@@ -64,6 +64,26 @@ sealed interface SettingsAction {
     data class ToggleSensor(val value: Boolean) : SettingsAction
     data class ToggleLightTheme(val value: Boolean) : SettingsAction
     data class ToggleNightMode(val value: Boolean) : SettingsAction
+    // UI settings: toggle a bottom-nav page's hidden state (Screen simpleName)
+    data class ToggleScreen(val screenName: String) : SettingsAction
+    // UI settings: update page order
+    data class ReorderScreens(val order: List<String>) : SettingsAction
+    // UI settings: reset to default order
+    data object ResetScreenOrder : SettingsAction
+    // UI settings: update main + More menu order (4.5.1 foldable menu)
+    data class UpdateMenuOrder(val mainOrder: List<String>, val subOrder: List<String>) : SettingsAction
+    // UI settings: reset main + More menu order
+    data object ResetMenuOrder : SettingsAction
+    // WaveLog logging (4.5.2): update server config
+    data class UpdateWavelogSettings(
+        val url: String, val apiKey: String, val stationId: String, val autoUpload: Boolean
+    ) : SettingsAction
+    // WaveLog: test connection
+    data object TestWavelogConnection : SettingsAction
+    // WaveLog: upload queue manually
+    data object UploadWavelogQueue : SettingsAction
+    // WaveLog: update LoTW satellite list
+    data object UpdateLotwSatellites : SettingsAction
 
     // Remote control
     data class UpdateRC(val settings: RCSettings) : SettingsAction

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsViewModel.kt

@@ -25,16 +25,24 @@ import com.rtbishop.look4sat.core.domain.repository.IDatabaseRepo
 import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import com.rtbishop.look4sat.core.domain.usecase.IShowToast
+import com.rtbishop.look4sat.core.domain.wavelog.UploadOutcome
+import com.rtbishop.look4sat.core.domain.wavelog.WaveLogApi
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogResult
+import com.rtbishop.look4sat.core.domain.wavelog.WavelogUploader
 import com.rtbishop.look4sat.core.presentation.R
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
 
 class SettingsViewModel(
     private val databaseRepo: IDatabaseRepo,
     private val settingsRepo: ISettingsRepo,
-    private val showToast: IShowToast
+    private val showToast: IShowToast,
+    private val lotwRepo: com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo
 ) : ViewModel() {
 
     private val defaultPosSettings = PositionSettings(false, settingsRepo.stationPosition.value, 0)
@@ -121,10 +129,35 @@ class SettingsViewModel(
             is SettingsAction.ToggleSensor -> settingsRepo.updateOtherSettings { it.copy(stateOfSensors = action.value) }
             is SettingsAction.ToggleLightTheme -> settingsRepo.updateOtherSettings { it.copy(stateOfLightTheme = action.value) }
             is SettingsAction.ToggleNightMode -> settingsRepo.updateOtherSettings { it.copy(stateOfNightMode = action.value) }
+            is SettingsAction.ToggleScreen -> settingsRepo.updateOtherSettings { current ->
+                val hidden = current.hiddenScreens.toMutableList()
+                if (action.screenName in hidden) hidden.remove(action.screenName) else hidden.add(action.screenName)
+                current.copy(hiddenScreens = hidden)
+            }
+            is SettingsAction.ReorderScreens -> settingsRepo.updateOtherSettings { it.copy(screenOrder = action.order) }
+            SettingsAction.ResetScreenOrder -> settingsRepo.updateOtherSettings { it.copy(screenOrder = emptyList()) }
+            is SettingsAction.UpdateMenuOrder -> settingsRepo.updateOtherSettings {
+                it.copy(screenOrder = action.mainOrder, subMenuOrder = action.subOrder)
+            }
+            SettingsAction.ResetMenuOrder -> settingsRepo.updateOtherSettings {
+                it.copy(screenOrder = emptyList(), subMenuOrder = emptyList())
+            }
             // Remote control & data sources
             is SettingsAction.UpdateRC -> settingsRepo.updateRCSettings(action.settings)
             is SettingsAction.UpdateRadioControl -> settingsRepo.updateRadioControlSettings(action.settings)
             is SettingsAction.UpdateDataSources -> settingsRepo.updateDataSourcesSettings(action.settings)
+            // WaveLog logging (4.5.2)
+            is SettingsAction.UpdateWavelogSettings -> settingsRepo.updateOtherSettings {
+                it.copy(
+                    wavelogUrl = action.url,
+                    wavelogApiKey = action.apiKey,
+                    wavelogStationId = action.stationId,
+                    wavelogAutoUpload = action.autoUpload
+                )
+            }
+            SettingsAction.TestWavelogConnection -> testWavelogConnection()
+            SettingsAction.UploadWavelogQueue -> uploadWavelogQueue()
+            SettingsAction.UpdateLotwSatellites -> updateLotwSatellites()
             // System
             is SettingsAction.ShowToast -> showToast(action.message)
         }
@@ -133,7 +166,16 @@ class SettingsViewModel(
     // region Position helpers — consolidated from 3 near-identical functions
 
     private fun setGpsPosition() {
-        updatePosition(R.string.prefs_loc_gps_error) { settingsRepo.setStationPosition() }
+        viewModelScope.launch {
+            _uiState.update { it.copy(positionSettings = it.positionSettings.copy(isUpdating = true)) }
+            val success = settingsRepo.setStationPosition()
+            _uiState.update {
+                it.copy(positionSettings = it.positionSettings.copy(
+                    isUpdating = false,
+                    messageResId = if (success) R.string.prefs_loc_success else R.string.prefs_loc_gps_error
+                ))
+            }
+        }
     }
 
     private fun setGeoPosition(latitude: Double, longitude: Double) {
@@ -181,6 +223,7 @@ class SettingsViewModel(
                 it.copy(dataSettings = it.dataSettings.copy(isUpdating = false))
             }
             println(exception)
+            showToast(R.string.prefs_data_update_failed)
         }
     }
 
@@ -197,6 +240,76 @@ class SettingsViewModel(
     }
 
 
+    // endregion
+
+    // region WaveLog(4.5.2)
+
+    // Shared uploader injected by SettingsScreen (container-level singleton)
+    var pendingUploader: WavelogUploader? = null
+
+    // Grid-mismatch confirmation state (UI observes it and shows an AlertDialog)
+    var gridConfirm by mutableStateOf<GridConfirmData?>(null)
+
+    // WaveLog error-detail dialog (UI observes it; one-tap copy)
+    var wavelogError by mutableStateOf<String?>(null)
+
+    data class GridConfirmData(val stationGrid: String, val userGrid: String)
+
+    private fun testWavelogConnection() {
+        viewModelScope.launch {
+            val s = settingsRepo.otherSettings.value
+            val result = WaveLogApi.testToken(s.wavelogUrl, s.wavelogApiKey, s.wavelogStationId)
+            when (result) {
+                is WavelogResult.Success -> showToast("WaveLog: ${result.message}")
+                is WavelogResult.Failure -> wavelogError = result.message
+            }
+        }
+    }
+
+    private fun updateLotwSatellites() {
+        viewModelScope.launch {
+            when (val r = lotwRepo.refresh()) {
+                is com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo.RefreshResult.Ok ->
+                    showToast("LoTW 卫星列表已更新: ${r.count} 个")
+                is com.rtbishop.look4sat.core.domain.wavelog.ILotwSatellitesRepo.RefreshResult.Error ->
+                    wavelogError = "LoTW 卫星列表更新失败: ${r.message}"
+            }
+        }
+    }
+
+    private fun uploadWavelogQueue() {
+        viewModelScope.launch {
+            val result = pendingUploader?.uploadQueue()
+            when (result) {
+                is UploadOutcome.Done -> {
+                    if (result.failedCount > 0 && result.firstError.isNotBlank()) {
+                        wavelogError = result.firstError
+                    } else {
+                        showToast("WaveLog: ${result.message}")
+                    }
+                }
+                is UploadOutcome.NeedConfirm -> {
+                    gridConfirm = GridConfirmData(result.stationGrid, result.userGrid)
+                }
+                null -> showToast("WaveLog: 上传失败")
+            }
+        }
+    }
+
+    /** Grid-confirm result: ignore and upload / cancel */
+    fun resolveGridConfirm(ignoreAndUpload: Boolean) {
+        val confirm = gridConfirm ?: return
+        gridConfirm = null
+        if (!ignoreAndUpload) return
+        viewModelScope.launch {
+            val result = pendingUploader?.uploadQueue(force = true)
+            when (result) {
+                is UploadOutcome.Done -> showToast("WaveLog: ${result.message}")
+                else -> showToast("WaveLog: 上传失败")
+            }
+        }
+    }
+
     // endregion
 
     companion object {
@@ -206,8 +319,9 @@ class SettingsViewModel(
                 SettingsViewModel(
                     databaseRepo = container.databaseRepo,
                     settingsRepo = container.settingsRepo,
-                    showToast = container.provideShowToast()
+                    showToast = container.provideShowToast(),
-                )
+                    lotwRepo = container.provideLotwSatellitesRepo()
+                ).apply { pendingUploader = container.provideWavelogUploader() }
             }
         }
     }

feature/status/build.gradle.kts

@@ -0,0 +1,17 @@
+import com.android.build.api.dsl.LibraryExtension
+
+plugins {
+    alias(libs.plugins.convention.featurePlugin)
+}
+
+android {
+    namespace = "com.rtbishop.look4sat.feature.status"
+    compileOptions {
+        encoding = "UTF-8"
+    }
+}
+
+dependencies {
+    implementation(project(":core:domain"))
+    implementation(project(":core:presentation"))
+}

feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt

@@ -0,0 +1,368 @@
+package com.rtbishop.look4sat.feature.status
+
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.ui.graphics.ColorFilter
+import androidx.compose.ui.res.painterResource
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.lifecycle.viewmodel.viewModelFactory
+import com.rtbishop.look4sat.core.domain.model.SatDay
+import com.rtbishop.look4sat.core.domain.model.SatReport
+import com.rtbishop.look4sat.core.domain.model.SatSlot
+import com.rtbishop.look4sat.core.domain.model.SatStatus
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
+import com.rtbishop.look4sat.core.presentation.R
+import com.rtbishop.look4sat.feature.status.R as StatusR
+import java.util.Calendar
+
+// ========== Official status colors (amsat.org/status originals) ==========
+val ActiveBlue = Color(0xFF648FFF)
+val TlmOrange = Color(0xFFFFB000)
+val NotHeardPink = Color(0xFFDC267F)
+val ConflictDeepOrange = Color(0xFFFE6100)
+val NoReportGray = Color(0xFFC0C0C0)
+
+@Composable
+fun SatStatusScreen(container: IMainContainer) {
+    val viewModel: SatStatusViewModel = viewModel(
+        factory = viewModelFactory {
+            initializer { SatStatusViewModel(container) }
+        }
+    )
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+    var selectedDay by remember { mutableStateOf<Pair<SatStatus, SatDay>?>(null) }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .statusBarsPadding()
+            .navigationBarsPadding()
+            .padding(horizontal = 8.dp)
+    ) {
+        // Top: legend + refresh
+        StatusHeader(
+            fetchedAtUtcMs = uiState.fetchedAtUtcMs,
+            isRefreshing = uiState.isRefreshing,
+            onRefresh = { viewModel.refresh() }
+        )
+        LegendRow()
+
+        when {
+            uiState.isLoading -> {
+                Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                    CircularProgressIndicator()
+                }
+            }
+            uiState.error != null && uiState.statuses.isEmpty() -> {
+                Column(
+                    modifier = Modifier.fillMaxSize(),
+                    verticalArrangement = Arrangement.Center,
+                    horizontalAlignment = Alignment.CenterHorizontally
+                ) {
+                    Text(
+                        text = stringResource(id = R.string.amsat_load_failed),
+                        color = MaterialTheme.colorScheme.error
+                    )
+                    TextButton(onClick = { viewModel.refresh() }) {
+                        Text(text = stringResource(id = R.string.amsat_retry))
+                    }
+                }
+            }
+            else -> {
+                // Header
+                HeaderRow(statuses = uiState.statuses)
+                HorizontalDivider(thickness = 1.dp)
+                // Row
+                LazyColumn(
+                    modifier = Modifier.fillMaxSize(),
+                    contentPadding = PaddingValues(bottom = 16.dp)
+                ) {
+                    items(uiState.statuses, key = { it.name }) { status ->
+                        StatusRow(
+                            status = status,
+                            onClickDay = { day -> selectedDay = status to day }
+                        )
+                    }
+                }
+            }
+        }
+    }
+
+    selectedDay?.let { (status, day) ->
+        ReportDialog(
+            statusName = status.name,
+            day = day,
+            reports = uiState.reports,
+            onDismiss = { selectedDay = null }
+        )
+    }
+}
+
+/** Top: update time + refresh button (spinner while loading) */
+@Composable
+private fun StatusHeader(
+    fetchedAtUtcMs: Long,
+    isRefreshing: Boolean,
+    onRefresh: () -> Unit
+) {
+    val infiniteTransition = rememberInfiniteTransition(label = "refresh")
+    val angle by infiniteTransition.animateFloat(
+        initialValue = 0f,
+        targetValue = 360f,
+        animationSpec = infiniteRepeatable(tween(800), RepeatMode.Restart),
+        label = "angle"
+    )
+    Row(
+        modifier = Modifier.fillMaxWidth().padding(vertical = 6.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Text(
+            text = if (fetchedAtUtcMs > 0) stringResource(id = R.string.amsat_updated) + " " + formatFetchedAt(fetchedAtUtcMs) else stringResource(id = R.string.amsat_title),
+            fontSize = 13.sp,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.weight(1f)
+        )
+        Box(
+            modifier = Modifier
+                .size(34.dp)
+                .clip(CircleShape)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+                .clickable(onClick = onRefresh),
+            contentAlignment = Alignment.Center
+        ) {
+            if (isRefreshing) {
+                CircularProgressIndicator(modifier = Modifier.size(18.dp), strokeWidth = 2.dp)
+            } else {
+                Image(
+                    painter = painterResource(id = StatusR.drawable.ic_refresh),
+                    contentDescription = stringResource(id = R.string.amsat_refresh),
+                    modifier = Modifier
+                        .size(18.dp)
+                        .rotate(angle),
+                    colorFilter = ColorFilter.tint(MaterialTheme.colorScheme.primary)
+                )
+            }
+        }
+    }
+}
+
+/** Legend (official four colors) */
+@Composable
+private fun LegendRow() {
+    val legend = listOf(
+        stringResource(id = R.string.amsat_active) to ActiveBlue,
+        stringResource(id = R.string.amsat_tlm) to TlmOrange,
+        stringResource(id = R.string.amsat_not_heard) to NotHeardPink,
+        stringResource(id = R.string.amsat_conflict) to ConflictDeepOrange
+    )
+    Row(
+        modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp),
+        horizontalArrangement = Arrangement.spacedBy(8.dp)
+    ) {
+        legend.forEach { (label, color) ->
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                Box(
+                    modifier = Modifier
+                        .size(10.dp)
+                        .clip(RoundedCornerShape(2.dp))
+                        .background(color)
+                )
+                Spacer(modifier = Modifier.width(3.dp))
+                Text(text = label, fontSize = 10.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
+            }
+        }
+    }
+}
+
+/** Header: satellite name + 6 day dates */
+@Composable
+private fun HeaderRow(statuses: List<SatStatus>) {
+    val dates = statuses.firstOrNull()?.days?.map { it.dateLabel } ?: emptyList()
+    Row(
+        modifier = Modifier.fillMaxWidth().padding(vertical = 4.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Text(
+            text = stringResource(id = R.string.amsat_name),
+            fontSize = 11.sp,
+            fontWeight = FontWeight.Bold,
+            color = MaterialTheme.colorScheme.primary,
+            modifier = Modifier.weight(2f).padding(start = 4.dp)
+        )
+        dates.forEach { date ->
+            Text(
+                text = date,
+                fontSize = 10.sp,
+                fontWeight = FontWeight.Bold,
+                textAlign = TextAlign.Center,
+                color = MaterialTheme.colorScheme.primary,
+                modifier = Modifier.weight(0.8f)
+            )
+        }
+    }
+}
+
+/** Satellite row: name + 6 day color blocks (official colors + report counts) */
+@Composable
+private fun StatusRow(status: SatStatus, onClickDay: (SatDay) -> Unit) {
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 3.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Text(
+            text = status.name,
+            fontSize = 11.sp,
+            maxLines = 1,
+            overflow = androidx.compose.ui.text.style.TextOverflow.Ellipsis,
+            modifier = Modifier.weight(2f).padding(start = 4.dp)
+        )
+        status.days.forEach { day ->
+            val slot = day.slots.firstOrNull { it.statusColor != NoReportGray.value.toInt().toLong() } ?: day.slots.first()
+            DayCell(
+                slot = slot,
+                modifier = Modifier.weight(0.8f).padding(horizontal = 1.dp),
+                onClick = { onClickDay(day) }
+            )
+        }
+    }
+}
+
+/** Day block: newest reported status among the day's 12 slots; gray when none */
+@Composable
+private fun DayCell(slot: SatSlot, modifier: Modifier, onClick: () -> Unit) {
+    val color = Color(slot.statusColor)
+    Box(
+        modifier = modifier
+            .height(24.dp)
+            .clip(RoundedCornerShape(4.dp))
+            .background(color)
+            .clickable(onClick = onClick),
+        contentAlignment = Alignment.Center
+    ) {
+        if (slot.count > 0) {
+            Text(
+                text = slot.count.toString(),
+                fontSize = 11.sp,
+                fontWeight = FontWeight.Bold,
+                color = Color.White
+            )
+        }
+    }
+}
+
+/** Report detail dialog (3 levels: callsign/date/time/grid) */
+@Composable
+private fun ReportDialog(
+    statusName: String,
+    day: SatDay,
+    reports: Map<String, SatReport>,
+    onDismiss: () -> Unit
+) {
+    val dayReports = day.slots.flatMap { it.reportIds }
+        .mapNotNull { reports[it] }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(text = "$statusName · ${day.dateLabel}") },
+        text = {
+            if (dayReports.isEmpty()) {
+                Text(stringResource(id = R.string.amsat_no_reports))
+            } else {
+                LazyColumn(modifier = Modifier.height(320.dp)) {
+                    items(dayReports) { report ->
+                        Column(modifier = Modifier.fillMaxWidth().padding(vertical = 4.dp)) {
+                            Row(verticalAlignment = Alignment.CenterVertically) {
+                                Box(
+                                    modifier = Modifier
+                                        .size(8.dp)
+                                        .clip(CircleShape)
+                                        .background(statusColorOf(report.statusText))
+                                )
+                                Spacer(modifier = Modifier.width(6.dp))
+                                Text(
+                                    text = report.statusText,
+                                    fontSize = 13.sp,
+                                    fontWeight = FontWeight.Bold
+                                )
+                            }
+                            Text(
+                                text = "${report.call}  ${report.dateUtc}  ${report.timeUtc}" +
+                                    if (report.grid.isNotBlank() && report.grid != "-") "  ${report.grid}" else "",
+                                fontSize = 12.sp,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant
+                            )
+                        }
+                        HorizontalDivider(thickness = 0.5.dp)
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(id = R.string.amsat_close)) }
+        }
+    )
+}
+
+private fun statusColorOf(statusText: String): Color = when {
+    statusText.contains("Heard", ignoreCase = true) && !statusText.contains("Not", ignoreCase = true) -> ActiveBlue
+    statusText.contains("Telemetry", ignoreCase = true) || statusText.contains("Beacon", ignoreCase = true) -> TlmOrange
+    statusText.contains("Not Heard", ignoreCase = true) -> NotHeardPink
+    else -> ConflictDeepOrange
+}
+
+private fun formatFetchedAt(utcMs: Long): String {
+    val cal = Calendar.getInstance()
+    cal.timeInMillis = utcMs
+    return "%02d-%02d %02d:%02d".format(
+        cal.get(Calendar.MONTH) + 1, cal.get(Calendar.DAY_OF_MONTH),
+        cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)
+    )
+}

feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusViewModel.kt

@@ -0,0 +1,84 @@
+package com.rtbishop.look4sat.feature.status
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.rtbishop.look4sat.core.domain.model.SatReport
+import com.rtbishop.look4sat.core.domain.model.SatStatus
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+
+data class SatStatusUiState(
+    val isLoading: Boolean = false,
+    val isRefreshing: Boolean = false,
+    val statuses: List<SatStatus> = emptyList(),
+    val reports: Map<String, SatReport> = emptyMap(),
+    val fetchedAtUtcMs: Long = 0L,
+    val error: String? = null
+)
+
+class SatStatusViewModel(
+    private val container: IMainContainer
+) : ViewModel() {
+
+    private val _uiState = MutableStateFlow(SatStatusUiState(isLoading = true))
+    val uiState: StateFlow<SatStatusUiState> = _uiState
+
+    init {
+        fetch()
+    }
+
+    fun fetch() {
+        viewModelScope.launch {
+            _uiState.update { it.copy(isLoading = true, error = null) }
+            try {
+                val page = container.amSatRepo.fetchStatus()
+                if (page != null && page.statuses.isNotEmpty()) {
+                    _uiState.update {
+                        it.copy(
+                            isLoading = false,
+                            isRefreshing = false,
+                            statuses = page.statuses,
+                            reports = page.reports,
+                            fetchedAtUtcMs = page.fetchedAtUtcMs
+                        )
+                    }
+                } else {
+                    _uiState.update {
+                        it.copy(isLoading = false, isRefreshing = false, error = "fetch_failed")
+                    }
+                }
+            } catch (exception: Exception) {
+                _uiState.update {
+                    it.copy(isLoading = false, isRefreshing = false, error = exception.message ?: "fetch_failed")
+                }
+            }
+        }
+    }
+
+    fun refresh() {
+        if (_uiState.value.isRefreshing) return
+        _uiState.update { it.copy(isRefreshing = true, error = null) }
+        viewModelScope.launch {
+            try {
+                val page = container.amSatRepo.fetchStatus()
+                if (page != null && page.statuses.isNotEmpty()) {
+                    _uiState.update {
+                        it.copy(
+                            isRefreshing = false,
+                            statuses = page.statuses,
+                            reports = page.reports,
+                            fetchedAtUtcMs = page.fetchedAtUtcMs
+                        )
+                    }
+                } else {
+                    _uiState.update { it.copy(isRefreshing = false, error = "fetch_failed") }
+                }
+            } catch (exception: Exception) {
+                _uiState.update { it.copy(isRefreshing = false, error = exception.message ?: "fetch_failed") }
+            }
+        }
+    }
+}

feature/status/src/main/res/drawable/ic_refresh.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Standard Material refresh icon (24dp viewport), centered geometry -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+>
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M17.65,6.35C16.2,4.9 14.21,4 12,4c-4.42,0 -7.99,3.58 -7.99,8s3.57,8 7.99,8c3.73,0 6.84,-2.55 7.73,-6h-2.08c-0.82,2.33 -3.04,4 -5.65,4 -3.31,0 -6,-2.69 -6,-6s2.69,-6 6,-6c1.66,0 3.14,0.69 4.22,1.78L13,11h7V4l-2.35,2.35z" />
+</vector>

gradle.properties

@@ -1,6 +1,5 @@
 # Configure your build environment: http://www.gradle.org/docs/current/userguide/build_environment.html
 org.gradle.caching=true
-# NOTE: lowered from -Xmx6g for the 2GB build server; heavy release builds run on GitHub Actions
+org.gradle.jvmargs=-Xmx6g -XX:MaxMetaspaceSize=1g -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
-org.gradle.jvmargs=-Xmx768m -XX:MaxMetaspaceSize=256m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.parallel=true
-org.gradle.parallel=false
+org.gradle.workers.max=4
-org.gradle.workers.max=1

gradle/libs.versions.toml

@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "446"
+appVersionCode = "459"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.4.6"
+appVersionName = "4.5.6"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry

settings.gradle.kts

@@ -21,11 +21,13 @@ include(
     ":core:presentation"
 )
 include(
+    ":feature:cw",
     ":feature:map",
     ":feature:mutual",
     ":feature:passes",
     ":feature:radar",
     ":feature:roaming",
     ":feature:satellites",
-    ":feature:settings"
+    ":feature:settings",
+    ":feature:status"
 )