Is the part of Tracker2 firmware open source where the mapping/APRS messaging communication with Garmin devices using the FMI protocol is described?
I would like to add that functionality, even partially to a mobile data transceiver which is widely used as APRS transceiver here in Finland. It has a microcomputer with ham-build firmware and a 5W transceiver combined to a single box. 73 Erik OH2LAK
