Just got a VX-8RG. Is there a way to create / edit a list of messages ahead of time with the PC? Much like you can use Chirp to edit the memories?
The VX-8G will keep previously sent APRS messages. So I usually just edit and update an old message. I don’t think you can CHIRP anything into APRS registers.
However, I also leave the battery disconnected as it otherwise discharges, and sometimes all messages are gone. So my backup is a label on the back of the radio with the correct syntax. You might try a test message before spotting from a summit.