Garmin GPSMAP 296 User Manual

Page 145

Interfacing

The following formats are supported for connection of external

devices: GARMIN proprietary Differential GPS (DGPS), NMEA

0180, 0182, 0183 (versions 1.5, 2.0, 2.3, 3.01), ASCII Text Output,

RTCM SC-104 input (version 2.0), and Garmin proprietary formats.
The following are the Approved Sentences for NMEA 0183,

version 3.01 output: GPRMC, GPGGA, GPGSA, GPGSV, GPGLL,

GPBOD, GPRTE, and GPWPL. The following are the Proprietary

Sentences for NMEA 0183, version 3.01 output: PGRME, PGRMZ,

and PGRMM.
The GPSMAP 296 also includes NMEA input with support for the

BWC, DBT, DPT, MTW, VHW, VTG, and XTE sentences.
Garmin’s proprietary communication protocol is available from the

Web site (

Removing the GPS Antenna

You can remove the antenna to use an external antenna. After the

antenna is removed, the BNC connector is exposed and ready for use

with an external antenna. For information on connecting an external

antenna to the GPSMAP 296, refer to the installation instructions

that came with the antenna.

To remove the GPS antenna:

1. Remove the external power cable from the connector on the

back of the GPSMAP 296.

2. Rotate the antenna to approximately a seven o’clock

position. The alignment notches in the casing must line up

with the notches on the antenna.

3. Pull the antenna away from the GPSMAP 296 unit.

Removing the GPS Antenna

GPSMAP 296 Pilot’s Guide

137

PPENDIX

NSTALLATION

NFORMATION