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Multiple OGN receivers sharing the same callsign cause position ping-pong in the database. Documents affected receivers (YARA, AVX993, AVX986, and others), raw APRS evidence, and diagnostic queries.
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Pull request overview
Adds internal documentation capturing an investigation into OGN receiver position “ping-pong” caused by callsign collisions, including evidence examples and troubleshooting queries for follow-up.
Changes:
- Documented how callsign collisions lead to receiver position oscillation and warning logs.
- Listed confirmed collision cases (e.g., YARA, AVX993, AVX986) with raw APRS beacon evidence and observed characteristics.
- Added operational/diagnostic commands and a SQL query to retrieve raw beacons from the database.
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| JOIN receivers r ON rm.receiver_id = r.id | ||
| WHERE r.callsign = 'YARA' | ||
| AND rm.received_at >= NOW() - INTERVAL '1 day' | ||
| AND rm.source = 'aprs' |
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| | | Receiver A (Sydney) | Receiver B (Victoria) | | ||
| |---|---|---| | ||
| | Position | 33°55.08'S, 151°05.91'E | 37°18.48'S, 142°59.30'E | |
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| | CPU Temp | ~12°C | ~44°C | | ||
| | Distance | **823.9 km** apart || | ||
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Summary
Test plan