search

aprsworld / awat

APRS World Android Telemetry
1 stars 0 forks source link

GPS Accuracy is still bad unless in continuous mode. #13

Open davarus opened 4 years ago

davarus commented 4 years ago

GPS Accuracy even with a 2 minute time-out is still significantly worse than continuous mode.

davarus commented 4 years ago

This appears to be an issue with the Android Device's GPS handling being garbage. There is no code difference between continuous mode and improved accuracy. When the GPS Location services are first started the accuracy is 20-40m and quickly drops down to 5m within a couple minutes. It then slowly improves on a logarithmic scale to 1m (with 1m taking 20-30 minutes). In addition, leaving the GPS on seems to pick a point and stick with it where as restarting the GPS picks another point. I think those two things are what's causing the difference.

I'm leaving this open, however, because there might be a solution but I haven't found it.