Garmin FishFinder 340C Owner's Manual page 23

Interfacing
The Fishfinder 340C allows for NMEA 0183, Version 3.01
input/output with a compatible GPS or navigation device. You must
set NMEA Input/Output to On to send or receive data (page 41).
The following sentences are for NMEA 0183, Version 3.01:
Input—GPBOD, GPBWC (only used if RMB is not present),
GPGGA, GPGLL (only used if GGA not present), GPRMB,
GPRMC, GPXTE (only used if RMB is not present).
Output—SDDBT, SDDPT, SDMTW, SDVHW, SDWPL* (only if
a waypoint is marked in Pointer mode).
*Garmin GPS units accept an SDWPL (WPL) NMEA sentence and create a
waypoint (saved location) at that position (page 41). For compatibility with
other brands of GPS or NMEA capable navigation devices, check with those
manufacturers to see if their units accept and store NMEA 0183 SDWPL sentences
and waypoints. The Fishfinder 340C does not store the actual waypoint. Only the
receiving device, if capable, stores the waypoint.
Fishfinder 340C Owner's Manual
I F
NSTALLING THE ISHFINDER
During a typical installation, use only the Red and Black wires. The
other wires do not have to be connected for normal operation of the
Fishfinder unit.
You can purchase complete information about National Marine
Electronics Association (NMEA) format and sentences from
NMEA at:
NMEA
Seven Riggs Avenue
Severna Park, MD 21146 U.S.A.
www.nmea.org
340C > I W H
NSTALLING THE IRING ARNESS
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