diff --git a/.hermes/plans/2026-08-01_210000-zh-translation-completion.md b/.hermes/plans/2026-08-01_210000-zh-translation-completion.md
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@@ -0,0 +1,169 @@
+# Look4Sat Chinese Translation Completion
+
+> **For Hermes:** Use subagent-driven-development skill to implement this plan task-by-task.
+
+**Goal:** Complete the Chinese (zh) translation of Look4Sat by adding ~60 missing strings that were introduced in versions after 4.0, while preserving the existing 154-line translation.
+
+**Architecture:** Single file change — update `values-zh/strings.xml` to match the English `values/strings.xml` with all missing strings translated.
+
+**Tech Stack:** Android XML resource files.
+
+---
+
+## Current Context
+
+- **Existing Chinese translation:** `core/presentation/src/main/res/values-zh/strings.xml` — 154 lines, covers basic UI but missing newer features
+- **English reference:** `core/presentation/src/main/res/values/strings.xml` — 216 lines
+- **Missing strings:** Doppler calculator, CW decoder, CAT radio control, data import errors, and several settings strings
+- **Existing translations preserved:** All 154 lines of existing Chinese are good and kept as-is
+
+### Strings already in Chinese (kept unchanged)
+
+All existing strings from `values-zh/strings.xml` — navigation, satellite screen, passes screen, radar screen (basic), map screen, settings (station, data, network, bluetooth, other), highlight, outro.
+
+### Strings missing from Chinese (need translation)
+
+| Name | English | Chinese Translation |
+|------|---------|-------------------|
+| `radar_doppler_calc` | Doppler Frequency Calculator | 多普勒频率计算器 |
+| `radar_doppler_tx_hint` | Enter TX freq (MHz) | 输入上行频率 (MHz) |
+| `radar_doppler_rx_hint` | Enter RX freq (MHz) | 输入下行频率 (MHz) |
+| `radar_doppler_offset_hint` | Offset (kHz) | 偏移 (kHz) |
+| `radar_doppler_info` | For linear transponders, type one frequency to see the other | 线性转发器：输入一个频率即可算出另一个 |
+| `radar_cw_decoder` | CW Decoder | CW 解码器 |
+| `radar_cw_start` | Start | 开始 |
+| `radar_cw_stop` | Stop | 停止 |
+| `radar_cw_reset` | Clear | 清空 |
+| `prefs_donate_title` | Donate | 支持（已有） |
+| `prefs_privacy_title` | Privacy Policy | 隐私政策（已有） |
+| `prefs_data_import_satellites_error` | No satellites imported. Select a valid TLE/3LE (.txt) or OMM (.csv) file. | 未导入卫星。请选择有效的 TLE/3LE (.txt) 或 OMM (.csv) 文件。 |
+| `prefs_data_import_transceivers_error` | No transceivers imported. Select a valid SatNOGS (.json) file. | 未导入收发器。请选择有效的 SatNOGS (.json) 文件。 |
+| `nav_radiocontrol` | Radio Control | 电台控制 |
+| `rc_settings_title` | CAT Radio Control | CAT 电台控制 |
+| `rc_radio_model` | Radio Model | 电台型号 |
+| `rc_tx_device_hint` | TX Radio BT Address | 发射电台蓝牙地址 |
+| `rc_rx_device_hint` | RX Radio BT Address | 接收电台蓝牙地址 |
+| `rc_tx_name_hint` | TX Radio Name | 发射电台名称 |
+| `rc_rx_name_hint` | RX Radio Name | 接收电台名称 |
+| `rc_enable_switch` | Enable CAT Control | 启用 CAT 控制 |
+| `prefs_cat_output` | CAT | CAT |
+| `prefs_outro_thanks` | (updated version with xdsopl and Robot36) | 在现有翻译末尾加上 `\\n* xdsopl 和 Robot36 贡献者!` |
+
+---
+
+## Step-by-step Plan
+
+### Task 1: Update values-zh/strings.xml with all missing strings
+
+**Objective:** Add all missing Chinese translations to the existing file, preserving existing translations.
+
+**Files:**
+- Modify: `core/presentation/src/main/res/values-zh/strings.xml`
+
+**Changes needed:**
+
+1. **Add Doppler calculator strings** (after `radar_visible`):
+```xml
+ 多普勒频率计算器
+ 输入上行频率 (MHz)
+ 输入下行频率 (MHz)
+ 偏移 (kHz)
+ 线性转发器：输入一个频率即可算出另一个
+```
+
+2. **Add CW decoder strings** (after Doppler):
+```xml
+ CW 解码器
+ 开始
+ 停止
+ 清空
+```
+
+3. **Add data import error strings** (after `prefs_data_update_success`):
+```xml
+ 未导入卫星。请选择有效的 TLE/3LE (.txt) 或 OMM (.csv) 文件。
+ 未导入收发器。请选择有效的 SatNOGS (.json) 文件。
+```
+
+4. **Add CAT radio control section** (after `prefs_bt_output`):
+```xml
+ CAT
+```
+
+5. **Add radio control section** (after `prefs_cat_output`):
+```xml
+
+ 电台控制
+ CAT 电台控制
+ 电台型号
+ 发射电台蓝牙地址
+ 接收电台蓝牙地址
+ 发射电台名称
+ 接收电台名称
+ 启用 CAT 控制
+```
+
+6. **Update `prefs_outro_thanks`** to include the new contributors:
+```xml
+
+ • Look4Sat 所有用户及贡献者!
+ \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 和 Robot36 贡献者!
+
+```
+
+**Step 1: Verify the file compiles**
+
+Since we're modifying an Android resource XML, verify it's valid by building:
+
+```bash
+./gradlew :app:assembleDebug --no-daemon
+```
+Expected: BUILD SUCCESSFUL
+
+**Step 2: Verify Chinese is loaded**
+
+The app should now show Chinese text when the system language is set to Chinese. No code changes are needed since Android's resource system automatically picks the `values-zh` folder.
+
+**Step 3: Commit**
+
+```bash
+git add core/presentation/src/main/res/values-zh/strings.xml
+git commit -m "i18n(zh): complete Chinese translation with new features
+
+- Add Doppler frequency calculator strings
+- Add CW decoder strings
+- Add CAT radio control strings
+- Add data import error messages
+- Update outro thanks with new contributors
+- Preserve all existing 154 lines of translation"
+```
+
+---
+
+## Files changed
+
+| File | Action |
+|------|--------|
+| `core/presentation/src/main/res/values-zh/strings.xml` | Modify (add ~60 lines) |
+
+## Verification
+
+1. Build: `./gradlew :app:assembleDebug --no-daemon` → BUILD SUCCESSFUL
+2. Install APK on device with system language set to Chinese
+3. Check all screens show Chinese text:
+ - Satellite screen: 搜索、类型、全选等
+ - Passes screen: 过境、仰角、AOS 等
+ - Radar screen: 多普勒频率计算器、CW 解码器
+ - Settings: CAT 电台控制、数据导入错误信息
+ - Map: 方位角、仰角、高度等
+
+## Risks / tradeoffs
+
+- **None.** This is a pure translation update with no code changes. Existing translations are preserved.
+- The `prefs_outro_thanks` string is marked `translatable="false"` in the English version (because it contains proper names), but in the Chinese version it was already translated, so we keep it translated.
+- The `app_name` is `translatable="false"` in English, so it's not included in the Chinese file.
\ No newline at end of file
diff --git a/core/presentation/src/main/res/values-zh/strings.xml b/core/presentation/src/main/res/values-zh/strings.xml
index 50c0f6f5..570b77ac 100644
--- a/core/presentation/src/main/res/values-zh/strings.xml
+++ b/core/presentation/src/main/res/values-zh/strings.xml
@@ -57,6 +57,17 @@
是
日照中
+ 多普勒频率计算器
+ 输入上行频率 (MHz)
+ 输入下行频率 (MHz)
+ 偏移 (kHz)
+ 线性转发器：输入一个频率即可算出另一个
+
+ CW 解码器
+ 开始
+ 停止
+ 清空
+
上一个
下一个
@@ -103,6 +114,9 @@
数据清空成功
更新成功
+ 未导入卫星。请选择有效的 TLE/3LE (.txt) 或 OMM (.csv) 文件。
+ 未导入收发器。请选择有效的 SatNOGS (.json) 文件。
+
自定义数据源
自定义TLE URL
自定义收发器URL
@@ -110,6 +124,7 @@
数据输出
网络
蓝牙
+ CAT
网络数据输出
启用方位俯仰角输出
@@ -129,6 +144,16 @@
请检查蓝牙权限
请检查网络权限
+
+ 电台控制
+ CAT 电台控制
+ 电台型号
+ 发射电台蓝牙地址
+ 接收电台蓝牙地址
+ 发射电台名称
+ 接收电台名称
+ 启用 CAT 控制
+
其他设置
以 UTC 时间显示
启用卫星数据自动更新
@@ -148,7 +173,8 @@
\n• Dave Moten (predict4java)
\n• Alexandru Csete (Gpredict)
\n• Dr T.S. Kelso (Celestrak)
- \n• Libre Space Foundation (SatNOGS)
+ \n• Libre Space Foundation (SatNOGS)
+ \n• xdsopl 和 Robot36 贡献者!
该应用程序不提供任何保修.