Garmin GPSMAP 741xs Owner's Manual - Page 11

Using the Keypad ➊ ➋ Icon Description ➊ Press and hold to turn the unit on or off. Press and release to adjust the backlight and the day and night modes. ➋ 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. ➌ Press up, down, left, or right to move through menus, highlight fields, and enter data. ➍ Press to mark a waypoint. ➎ Press to select highlighted items. ➏ Press to return to the Home screen. ➐ Press to access additional settings and configuration options. Press to return to the previous screen when indicated. Device Overview 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. Using Simulator Mode Simulator mode turns the GPS receiver off for use indoors or for practice. The unit does not track satellites in simulator mode.  Warning Do not try to navigate using simulator mode, because the GPS receiver is turned off. Any satellite signal-strength bars shown are only simulations and do not represent the strength of actual satellite signals. To turn on Simulator mode: 1. From the Home screen, select Configure > System > Simulator. 2. Select Setup to set speed, track control, and position. GPSMAP 400/500 Series Owner's Manual 5