mckero 012ea1eeb6 fix(aprs): passcode compute button, crash log, notif permission, login verify
User feedback round 2 (4.5.4): no notification shown, report not
sending, no error visibility on crash. Diagnosis: APRS-IS port 14580
reachable (verified with real login test), 24580 SSL refused; login
format OK. Fixes:

- Settings dialog: "Compute passcode" button - fills passcode from
  callsign via the ported 0x73E2 algorithm (user can see the result)
- Global crash handler in MainApplication: stack trace appended to
  files/crash_log.txt so crashes are diagnosable (user: no crash logs
  were available before)
- POST_NOTIFICATIONS runtime permission requested when enabling APRS
  (Android 13+ otherwise silently hides the service notification)
- AprsIsClient: read the login response (aprsc "# logresp ...
  unverified"/"Invalid") and surface the server message as the error
- AprsForegroundService: Toast on manual report result (OK / failure
  with server reason)
- Strings EN/ZH/TR/IN/ID +3 keys
Verified: compileDebugKotlin all modules BUILD SUCCESSFUL,
check_strings 9 files OK.
2026-08-05 03:06:09 +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.

Star History

Star History Chart
S
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%