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Main Menu
Advanced NMEA Output Setup
If you are going to interface the GPSMAP 276C with another piece of equipment (such as a radar or
autopilot), the unit needs to be set to output NMEA data. The NMEA data can be customized to shorten
the update time from the unit. If too many NMEA sentences are activated, the unit may take longer than
two seconds to update.
The GPSMAP 276C NMEA data transmission can be customized to keep the output rate at two
seconds. If the unit is set up to output all of the available NMEA sentences, the output rate may exceed
two seconds.
To access the Advanced NMEA Output Setup:
1. Press the MENU key twice to open the Main Menu.
2. Use the
ARROW KEYPAD to select ‘Setup’ from the vertical tab list.
3. Use the
ARROW KEYPAD to select ‘Com 1’ or ‘Com 2’ from the row of tabs along the top of the
page.
4. Use the
ARROW KEYPAD to highlight the fi eld below ‘Serial Data Format’. Press ENTER/MARK.
5. Use the
ARROW KEYPAD to select ‘NMEA In/NMEA Out’. Press ENTER/MARK.
6. Press
MENU. Select ‘Advanced NMEA Setup’ and press ENTER/MARK.
The ‘Advanced NMEA Output Setup’ page allows you to turn on/off the GPS status (GSA. GSV),
Waypoint/Route (WPL, RTE), the GARMIN Proprietary sentences, and Waypoint IDs. You can also
change the precision of the Lat/Lon minutes.
GPSMAP 276C NMEA Sentence Output (NMEA version 3.01 compliant)
Always transmitted: GPRMC, GPGGA, GPGLL, GPBWC, GPVTG, GPXTE, GPRMB
Switchable sentences: GPGSA, GPGSV, GPWPL, GPRTE
GARMIN proprietary: PGRME, PGRMZ, PGRMM
Setup Tab
‘COM 1’ tab of the Setup Tab
‘COM 2’ tab of the Setup Tab with GARMIN DGPS selected
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