Garmin GPSMAP 12X3, Owner'S Manual, Page: 22 / 212

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.
To view the GPS satellite signal strength, select Settings > System > Satellite Positioning.
If the device loses satellite signals, a flashing question mark appears over the boat position indicator ( ) 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 185 .
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 > Satellite Positioning > Source.
2 Select the source for GPS data.
Customizing the Chartplotter
Home Screen
The home screen is an overlay that provides access to all of the features in the chartplotter. The features are
dependent on the accessories you have connected to the chartplotter. You may not have all of the options and
features discussed in this manual.
When viewing any screen, you can return to the home screen by selecting
.
Settings menu button
Features buttons
Present time, present depth, or autopilot control button
Category tabs
Closes the home screen and returns to the previously open page
8 Customizing the Chartplotter