I'd like to mention, that while
Garmin may need an update to use data FROM DSC
radio, DSC
radio should be able to use
Garmin data (or any other
GPS data) without any updates. It uses on of the standard NMEA messages for coordinates. So, if the
radio is unable to receive this data, it is not likely that firmware upgrade will help. It may be worth doing anyway, but if it does not work - the usual NMEA stuff applies -check proper connections, check that the
GPS is configured for output on a given port and output parameters are correct (i.e. if it can output different messages or speeds, these must be compatible to the
radio)