mckero 518d9a4d22 feat(aprs): 4.5.4 APRS-IS network reporting (ported from APRSdroid 1.6.3d)
Core logic extracted from APRSdroid 1.6.3d (jadx reverse-engineered,
verified against APRS spec):
- core/domain/aprs/AprsPacket.kt: passcode algorithm (0x73E2 XOR),
  login line, uncompressed/compressed position encoding (ab0oo)
- core/data/aprs/AprsIsClient.kt: APRS-IS TCP client (login + packet
  lines, 30s reconnect strategy)
- core/data/aprs/AprsReporter.kt: periodic reporting scheduler
  (default 5 min, manual trigger support)
- core/data/aprs/AprsStore.kt: SharedPreferences persistence
  (fill once, saved)
- app/AprsForegroundService.kt: foreground service with notification
  (keeps APRS alive across pages), START_STICKY, last-known position
  provider
- feature/settings/AprsCard.kt: APRS card between DataCard and
  OutputCard, gear button opens settings dialog (server/port/
  callsign/ssid/passcode/interval/status/symbol), manual report button
- Manifest: service registration + FOREGROUND_SERVICE(_DATA_SYNC) +
  POST_NOTIFICATIONS
- Strings in EN/ZH/TR/IN/ID (23 keys x 5)
- Version 4.5.4/454 + What's new 5 languages
2026-08-05 02:07:11 +00:00

Look4Sat: Satellite tracker

Look4Sat CI

Get it on Google Play Get it on F-Droid

Radio satellite tracker and pass predictor for Android, inspired by Gpredict

Track satellite passes with ease!

Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites.
You can search the entire database by NORAD Catalog Number or the satellite's name.

Orbital positions and passes are calculated relative to your location.
To get reliable data make sure to set the station position via the app Settings.

The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation.
It is now and always will be completely ad-free and open-source.

Main features:

  • Predicting satellite positions and passes for up to 10 days
  • Showing the list of currently active and upcoming satellite passes
  • Showing the active pass progress, polar trajectory and transceivers info
  • Showing the satellite positional data, footprint and ground track on the map
  • Custom TLE satellite data import is available via Three Line Element .txt files
  • Offline first: calculations are made offline. Weekly TLE data update is recommended.

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Description
Satellite tracker and pass predictor for Android, inspired by Gpredict
https://play.google.com/store/apps/details?id=com.rtbishop.look4sat
Readme AGPL-3.0
55 MiB
0 Stars 1 Watchers 0 Forks
v4.6.2
Latest
2026-08-27 15:47:20 +00:00
Languages
Kotlin 100%