Garmin 340c Manual

A SERVICE OF

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 Fishnder 340C Owner’s Manual

InstAllIng the fIshfInder 340c > InstAllIng the WIrIng hArness

The Fishnder 340C can be connected to another piece of NMEA

compatible electronic equipment, such as a Garmin GPS (Global

Positioning System) device. If equipped with a capable transducer,

the Fishnder 340C can send depth, temperature, and speed

information. It can also mark a location that can be viewed and

possibly saved on another device (see page 41). The Fishnder

340C can also accept GPS navigational data, such as position, time,

course, or distance. Refer to the wiring diagrams for interfacing the

Fishnder 340C with other devices (see pages 17 and 19).

To install the wiring harness to a GPS or other NMEA

device:

1. Follow the voltage source installation steps (see page 15).

ForGarminunits,theground(Black)wiresserveasdata

groundandmustbeattachedtogetheroronthesame

terminal.RefertothewiringdiagramofyourGPSunitfor

wireidentication.

2. ConnecttheBlue(DataOUT)wirefromtheFishndertothe

Data IN wire on the GPS/NMEA harness.

3. ConnecttheBrown(DataIN)wirefromtheFishndertothe

Data OUT wire on the GPS/NMEA harness.

4. SettheFishnder340CNMEAInput/OutputtoOn

(page 32). For Garmin GPS units, set the communications

interface to NMEA/NMEA, NMEA In/NMEA Out, or NMEA.

Interfacing with NMEA

The Fishnder 340C allows for NMEA 0183, Version 3.01

input/output with a compatible GPS or navigation device. You must

set  to  to send or receive data (page 32).

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).

—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 40). 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Fishnder340Cdoesnotstoretheactualwaypoint.Onlythe

receivingdevice,ifcapable,storesthewaypoint.

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 USA

www.nmea.org