Garmin 496 Manuale Proprietario

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 

for connecting to a Mode S transponder for TIS data, and to a 

Garmin aviation NAV/COM radio. 
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, 

PGRMM, and PGRMH. 
The GPSMAP 496 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 (

).

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 496, refer to the installation instructions 

that came with the antenna.

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

back of the GPSMAP 496.

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 496 unit.

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GPSMAP 496 Owner’s Manual

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