mckero
8f56ea05ec
RoamingScreen carried ~170 lines of decompiled range-lookup tables (encodeLon/encodeLat) that re-implemented exactly what core:domain's positionToQth already does. A probe calling both over 16,471 sampled coordinates (every 2 degrees across the full globe) found byte-identical 8-char locators, so the tables were pure duplication - two implementations of the same Maidenhead encoding that had to be kept in sync (the earlier boundary fix had to be applied twice). Replace them with positionToQth and split its standard-ordered output (lonField latField lonSquare latSquare lonSub latSub lonSubsub latSubsub) back into the per-axis segments the UI consumes: the 3x3 ring (first 4 chars), markerLeft (lon subsquare), markerTop (lat subsquare). Out-of-range input keeps the old blank-segment behaviour: positionToQth returns null, the locator becomes spaces, qthNeighbors returns an empty ring, and the marker lookups fall back to 0. Net -160 lines. All existing RoamingState tests and the new equivalence probe pass; :feature:roaming compiles.
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.