Inserting a Memory Card (GPSMAP 8x17/8x22/8x24/87xx)
NOTE: The memory card reader is not included with the chartplotter. It is sold as a separate accessory. You
must connect a memory card reader or a chartplotter model with a built-in memory card slot to the Garmin
Marine Network.
This device supports up to a 32 GB SD memory card, formatted to FAT32 with speed class 4 or higher. Use of
an 8 GB or higher memory card with speed class 10 is recommended. A memory card is not included with
GPSMAP 8x17/8x22/8x24/87xx models.
1 Open the door on the memory card reader.
2 Insert the memory card with the label facing away from the door.
3 Press the card in until it clicks.
4 Close the card reader 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
. For help acquiring satellite signals, see
device will not acquire GPS signals, page 174
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.
10
Introduction