Garmin GPSMAP 420s Owner's Manual - Page 11
Using the Keypad, Acquiring GPS Satellite Signals, POWER/BACKLIGHT, ROCKER, SELECT - gps receiver
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UPC - 753759065799
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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 up, down, left, or right to move through menus, highlight fields, and enter data. MARK-Press to mark a waypoint. SELECT-Press to select highlighted items. HOME-Press to return to the Home screen. Using the Keypad POWER/ BACKLIGHT RANGE (-/+) ROCKER MARK SELECT MENU HOME 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. For more information about GPS, visit the Garmin Web site at www.garmin.com/aboutGPS. GPSMAP 400/500 Series Owner's Manual
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