Sending GPS lock status in comment

[darksidelemm]

Hi,

Is there any functionality within this code to send information about GPS lock status in the comment field, or somewhere else?

I'm one of the SondeHub developers, and we've seen a few flights running this firmware sending clearly bogus positions, where I suspect the tracker may have poor or no GPS lock. Since we have no way of telling the validity of a position report, that can result in mess like this:

A lot of other trackers that upload into APRS-IS include some telemetry in the comment field (not the best place for it, I admit, but it works), and almost all include some indication of lock status, in the form of the number of satellites used in a fix. This lets us filter telemetry based on this state. Some example of the formats we support are here: https://github.com/projecthorus/sondehub-aprs-gateway#telemetry
If you were to include some of this information, I'd be happy to add support for it in our APRS-IS gateway.

Thanks and 73
Mark VK5QI

[darksidelemm]

Unfortunately it does look like in this situation the dodgy packets are from iGates corrupting data. It's a shame that we're seeing the same kind of igate packet corruption issues in LoRa APRS as well.. I thought these packets would have been protected with a checksum?

Either way, if you want to include some comment field telemetry data i'm happy to add support for it. Otherwise feel free to close this issue.