Garmin GPSMAP 3006C, 3010C Owner's Manual page 73

NMEA Interface
If you are going to use the GPSMAP 3006C/3010C with a NMEA device (such
as a VHF radio or autopilot), the unit needs to be set to input/output NMEA
data. See the GPSMAP 3006C/3010C & GPS 17 Installation Instructions for
information on wiring and NMEA data.
To activate the NMEA data:
1. Highlight the Port 1 or Port 2 field, and press ENTER.
2. Highlight NMEA In/NMEA Out, and press ENTER.
When transferring data between two Garmin units, always set one to host and
use the other unit to send or request the data.
Advanced NMEA Output Setup
The GPSMAP 3006C/3010C NMEA data transmission can be customized to
change the precision of the lat/lon minutes, set up the waypoint IDs, and 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.
GPSMAP 3006C/3010C Owner's Manual
Use the Advanced NMEA Setup Page to turn the GPS status (GSA, GSV),
Waypoint/Route (WPL, RTE), and the Garmin proprietary sentences on or off.
Check any other equipment's owners manual to see what sentences are required
to be enabled for functionality.
lat/lon Minutes Precision allows you to adjust the number of digits to the right
of the decimal point for transmission of NMEA Output, either 2, 3, or 4 digits.
Use the Waypoint ID setting to output the waypoint identifiers as names or
numbers.
Advanced NMEA Setup Page
To change the advanced NMEA settings:
1. Press the NMEA Setup soft key to open the Advanced NMEA Setup
Page.
2. To change, enable, or disable NMEA output sentences, highlight the
sentence, and press ENTER to select or clear the check box. Only
selected sentences are output.
M M > s t
aIn enu YsteM ab
6