Two things the operator asked for after running 4.6.1. The receive-only notice named a state this app does not have. APRS-IS lets an unverified station connect and then discards its packets, which is what "receive-only" means at the protocol level - but this app only reports its own position. There is no receiving side to it, and none intended, so telling the operator they are in receive-only mode described a mode that does not exist here. Without a passcode the packet does not arrive, and the unverified notice already says exactly that. The string is gone from all five locales, along with the AprsReport.receiveOnly field, which had no remaining consumer. AprsPasscode.classify stays: loginValue still uses it, and its tests hold the distinction between a deliberate -1 and a typo, which is a separate defect worth keeping fixed. The CW history pane no longer follows the decode. Its whole purpose is to be read back, and a record that scrolls itself is worse than paper - as the operator put it, if it scrolls away then why use a decoder instead of listening and writing it down, since paper does not erase itself. The single line above it is where new characters appear; that still scrolls, because that is its job. A down arrow in the toolbar jumps to the newest text when wanted. Not fixed here: logged times in the log page look wrong and inconsistent. I proposed a timezone explanation and wrote a probe, and the probe disproved it - on a real JVM both the session header and the row times are stable and both resolve to local time. That reverted attempt is not in this commit. The cause is still unknown.
Look4Sat: Satellite tracker
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.
License
The Look4Sat application code is licensed under the GNU General Public License v3.0.
The CW decoder in feature/cw bundles the DeepCW
neural decoding model, licensed under the GNU Affero General Public License v3.0 only
(AGPL-3.0-only). Because the combined work incorporates an AGPL-3.0 component, the
combined work is distributed under the
GNU Affero General Public License v3.0 — GPL-3.0 Section 13 permits the
combination, and AGPL-3.0 Section 13 applies to the combined work as a whole.
Model provenance and attribution are documented in
feature/cw/licenses/NOTICE.md; the original GPL-3.0
text is preserved at feature/cw/licenses/Look4Sat-GPL-3.0.txt. The CW model runs
locally on-device and does not provide services over a network.





