Got a TH-D72 last week and have it receiving APRS just great. However it rarely transmits and I cannot figure out why. I have both MCP-4A and RT Systems THD72 programmer loaded BTW. Used the instructions on page 17 of the in depth manual and it transmitted once.http://aprs.fi/?c=raw&call=N8FNR&limit=50&view=normal
Found that odd so I fiddled with the settings and it transmitted 5 times and stopped.http://aprs.fi/?c=raw&call=N8FNR-1&limit=50&view=normal
Tried fiddling again with the settings and changed the SSID to N8FNR-7 and cannot get it to transmit.
Another weird thing is that the audio for channels 300-306 is muted. I have the NOAA WX frequencies programmed there as I like to use them to listen for openings but I cannot hear the local station here, KEC-63 but the display says that it is full strength.