Garmin GPS 12XL Owner's Manual (Software Version 2.00-3.62) - Page 16
Satellite - instructions
UPC - 753759007034
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REFERENCE Satellite Page Satellite Page Status Field Battery Indicator Horizontal Accuracy Skyview Display The GPS 12XL Satellite Page will help you determine which satellites are in view, and whether or not any satellites are being "shaded" or blocked from receiving satellite signals (See satellites 07 and 09 above). By periodically monitoring the signal strength bars at the bottom of the page and the north up sky view, you will be able to see how moving to another area with a clearer view of the sky will improve satellite reception and speed up signal acquisition. 12 Signal Strength Indicators The GPS 12XL's Satellite Page displays the status of various receiver functions. The status information will help you understand what the GPS 12XL is doing at any given time, and will tell you whether or not the receiver has calculated a position fix. Sky View and Signal Strength Bars The sky view and signal strength bars give you an indication of what satellites are visible to the receiver, whether or not they are being used to calculate a position fix, and the signal quality. The satellite sky view shows a bird's-eye-view of the position of each available satellite relative to the unit's last known position. The outer circle represents the horizon (north up); the inner circle is 45º above the horizon; and the center point is directly overhead. You can use the sky view to help determine if any satellites are being blocked, and whether you have a current position fix (indicated by a '2D NAV' or '3D NAV' in the status field). You can also set the sky view to a track up configuration by changing the 'orientation' option on the Map Page. (See pg. 38 for setup instructions.) When the receiver is looking for a particular satellite, the corresponding signal strength bar will be blank and the sky view indicator will be highlighted. Once the receiver has found the satellite, a hollow signal strength bar will appear, indicating that the satellite has been found and the receiver is collecting data from it. The satellite number in the sky view will no longer appear highlighted. As soon as the GPS 12XL has collected the necessary data to calculate a fix, the status field will indicate a 2D or 3D status.