Garmin GPSMAP 545 Owner's Manual - Page 11
Using the Keypad, Acquiring GPS Satellite Signals, POWER/BACKLIGHT, ROCKER, SELECT - gps receiver
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Using the Keypad POWER/ BACKLIGHT RANGE (-/+) ROCKER MARK SELECT MENU HOME Getting Started POWER/BACKLIGHT-Press and hold to turn the unit on or off. Press and release to adjust the backlight and day and night modes. RANGE (-/+)-Press to adjust the range of the sonar. Press to zoom in or out on a chart. Press to page up or down on lists. ROCKER-Press to adjust the range of the sonar, to zoom in or out on a chart, to page up or down on lists, to scroll the map, or to adjust the backlight level. MARK-Press to mark a waypoint at your current location. SELECT-Press to select highlighted items. HOME-Press to return to the Home screen. MENU-Press to access additional settings and configuration options. Press to return to the previous screen when indicated. Acquiring GPS Satellite Signals When you turn on the unit, the GPS receiver must collect satellite data and establish the current location. When the unit acquires satellite signals, the signal strength bars at the top of the Home screen are green . When the unit loses satellite signals, the green bars disappear and the position icon displays a flashing question mark. GPSMAP 400/500 Series Owner's Manual