Gps Antenna/Receiver Module; Connecting To A Nmea 2000 Network - Lowrance GlobalMap 4800M Product Support Bulletin

when not in use. Failure to connect to and use a power
switch will drain your boat battery, which could stop
your boat's operation.

GPS Antenna/Receiver Module

Your unit packs with the LGC-3000 GPS module. This device contains
the unit's external antenna and receiver for GPS and WAAS signals.
The antenna/receiver module comes with a 15-foot (4.6 m) extension
cable. This module can be mounted on a flat surface or pole, or an op-
tional magnet is available for temporary mounting on any ferrous sur-
face.
You need to select an antenna installation location that has a clear, un-
obstructed view of the sky. After the module is installed, connect it to the
unit. The LGC-3000 can communicate with your GPS unit either directly
(using the supplied extension cable) or through a NMEA 2000 network.
LGC-3000 Module, bottom view (left) and top view (right).
NOTE
See the module's instruction sheet, publication part number 988-
0154-651, for complete installation instructions.
To use the module in an automobile, you may achieve good results by
simply placing the external antenna on the top of the dash, at the base of
the windshield. A piece of the rubber non-skid shelf liner material avail-
able in recreational vehicle supply stores will help hold the antenna in
place. This may not work well if you have a cab-over design pickup truck
camper or motor home. If dashboard reception is poor, simply relocate
the antenna module elsewhere on the vehicle for a clearer view of the
sky.

Connecting to a NMEA 2000 Network

A network bus is an installed and operational network cable (backbone)
running the length of your boat, already connected to a power supply and
properly terminated. Such a bus provides network connection nodes at
various locations around your boat. The NMEA 2000 network is similar to
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