Garmin GPSMAP 496 User Manual

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GPSMAP 496 Owner’s Manual

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Installing and Removing Data Cards

The GPSMAP 496 uses an optional Garmin data card to show

digital charts and maps. Install the data card in the slot located on

the bottom of the unit. Install or remove the data card at any time,

whether the unit is on or off.
You can load a variety of information on your data card, such as

BlueChart and MapSource detailed maps in a MapSource program.

You can buy pre-programmed cards to use with your GPSMAP 496.
Data cards are not waterproof, should not be exposed to moisture or

excessive static charges, and should be stored in the case supplied

with the card.

To install a data card:

1. Insert the card into the slot on the bottom of the unit. Be sure

the label is facing the front of the unit.

2. Firmly push the card into the unit. It is not necessary to force

the card. The handle is still exposed when it is properly

inserted.

3. If the unit is on, a confirmation tone sounds. The first time you

insert a programmed data card, the unit takes a few seconds

to read the card. When the data card has been properly

installed and accepted, a summary screen noting the card

details appears. Press

ENTER to acknowledge.

If you insert a data card and get a card format not recognized

message, try removing the card and reinserting it. If the card is still

not recognized, contact Garmin Product Support or your Garmin

dealer.

To remove a data card:

1. Grasp the card handle. The handle expands for easy removal.
2. Pull the card out of the card slot on the bottom of the unit.
3. If the unit is on, a confirmation tone sounds when the data

card is removed.

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

for connecting to a Mode S transponder for TIS data (USA only),

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