AvMap APRS - Manual (Page 26)

an ohmmeter, especially if it is a home brewed data
cable.
4. Verify that the Geosat 6 APRS is computing a posi-
tion fix.
5. Listen to your APRS frequency on the TH-D72A/E
or on a different radio to verify there is APRS activity
in your area.
6. Reread and verify the setup sections of these in-
structions.
7. Perform a Partial Reset of your TH-D72A/E per the
instructions on page RESET-1 of the CD manual, then,
repeat the setup instructions. A partial reset will not
erase your memory channels, but will set all other
settings to their default values.
APRS Functions
26 - AvMap