Inserting Memory Cards; Acquiring Gps Satellite Signals; Selecting The Gps Source - Garmin GPSMAP 7400 Series Owner's Manual

Inserting Memory Cards

You can use optional memory cards with the chartplotter. Map cards allow you to view high-resolution satellite
imagery and aerial reference photos of ports, harbors, marinas, and other points of interest. You can use blank
memory cards to record Garmin Quickdraw Contours mapping, record sonar (with a compatible transducer),
™
transfer data such as waypoints and routes to another compatible chartplotter or a computer, and use the
ActiveCaptain ® app.
This device supports two SD memory cards, up to a 32 GB, formatted to FAT32. Speed class 4 or greater
required.
1 Open the access flap or door on the front of the chartplotter.
2 Insert the memory card .
3 Press the card in until it clicks.
4 Clean and dry the gasket and door.
NOTICE
To prevent corrosion, be sure the memory card, gasket, and door are thoroughly dry before closing the door.
5 Close the door.

Acquiring GPS Satellite Signals

The device may need a clear view of the sky to acquire satellite signals. The time and date are set automatically
based on the GPS position.
1 Turn on the device.
2 Wait while the device locates satellites.
It may take 30 to 60 seconds to acquire satellite signals.
When the device acquires satellite signals, appears at the top of the Home screen.
If the device loses satellite signals, disappears and a flashing question mark appears over on the chart.
For more information about GPS, go to garmin.com/aboutGPS. For help acquiring satellite signals, see My
device will not acquire GPS signals, page 153.

Selecting the GPS Source

You can select your preferred source for GPS data, if you have more than one GPS source.
1 Select Settings > System > GPS > Source.
2 Select the source for GPS data.
Introduction 7