Garmin GPSMAP 12 3 Series Owner's Manual page 11

Installing the Garmin Express App on a
Computer......................................... 179
Registering Your Device Using the
Garmin Express App....................... 180
Updating Your Charts Using the
Garmin Express App....................... 181
Software Updates............................181
Cleaning the Screen............................ 182
Viewing Images on a Memory card... 183
Screenshots........................................ 183
Capturing Screenshots................... 183
Copying Screenshots to a
Computer......................................... 183
Troubleshooting.................................. 183
My device will not acquire GPS
signals.............................................. 183
My device will not turn on or keeps
turning off........................................ 184
My device is not creating waypoints in
the correct location......................... 184
Contacting Garmin Support................ 184
Specifications......................................185
GPSMAP 7x3 Specifications.......... 185
GPSMAP 9x3 Specifications.......... 186
GPSMAP 12x3 Specifications........ 187
Sonar Models Specifications......... 188
NMEA 2000 PGN Information........ 189
NMEA 0183 Information................. 192
J1939 Information.......................... 194
Table of Contents ix