mckero
f4e188261d
All nine String.format calls in AprsPacket used the JVM default locale. On a device set to Arabic, Persian or Bengali the digit shapes come out as Eastern Arabic / Bengali numerals, so every position report was malformed: ar_EG lat=٣٩٥٤.٢٥N lon=١١٦٢٤.٤٤E alt=/A=٠٠٠٣٢٨ fa_IR lat=۳۹۵۴.۲۵N lon=۱۱۶۲۴.۴۴E alt=/A=۰۰۰۳۲۸ bn_BD lat=৩৯৫৪.২৫N lon=১১৬২৪.৪৪E alt=/A=০০০৩২৮ APRS-IS is an ASCII line protocol, so aprsc rejects these packets outright: APRS reporting simply never worked for those users, with no clear error. A locale using ',' as the decimal separator would corrupt the range filter the same way. Affected: getDMS position encoding (all five ambiguity branches), the DDMM.MM/DDDMM.MM assembly, formatAltitude, formatCourseSpeed and formatRangeFilter. TDD proof: without Locale.ROOT: 4 of 4 AprsPacketLocaleTest cases FAILED with Locale.ROOT: BUILD SUCCESSFUL, full :core:domain:test green Ruled out by the same probe (no change made): getDMS degree/minute split matches an independent DDMM.MM reference implementation over 1,800,000 sampled latitudes with zero divergence; the passcode loop dropping the trailing NUL on even-length callsigns is the standard algorithm's behaviour.
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.