Kurt <[email protected]> writes: > Did an outdoor test with the D72A with direct wire interface to a > Garmin 60Cs mapping GPS and the TeleGPS.For some weird reason, the > performance accuracy was better when I changed to TeleGPS to send > uncompressed packets with the 1.6.0.1 firmware and the 1.6.0 setup > software. I was seeing between 10-30 foot accuracy which was quite a > bit better than the 100-150 foot accuracy with the compressed > packets.
Sounds like the D72A is mis-decoding the compressed APRS packet format. We've had a couple of other people asking for uncompressed APRS to use with older equipment that doesn't handle the compressed format, so having the choice solves a bunch of problems with one minor change. > I don't know if sending the uncompressed packets would affect the > telemetry side of the TeleGPS so one who does have the donglecould > experiment and see. The dedicated receivers (TeleDongle and TeleBT) use a completely different, dedicated digital telemetry protocol, so it's unaffected by the choice of APRS encoding technique. > Anyhow, I'm ecstatic about being able to use the TeleGPS in a MD 38mm > project. Have fun out there! We'll have the uncompressed APRS stuff in the next 'real' release for TeleGPS. -- -keith
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