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GPS Tab
The GPS tab provides a visual reference of satellite acquisition,
receiver status, and accuracy. The sky view and signal strength bars
give an indication of what satellites are visible to the receiver and
whether they are being tracked. For more information about GPS,
see pages 4-6.
Main Menu—GPS Tab
Weather Tab
Use the Weather tab on the Main Menu to view individual weather
features without turning all other weather features on or off. For
example, you can select Storm Cells to view only storm cells on
the Map window that appears on the Weather tab. When you close
the Main Menu and return to the Map Page, all of your previously
selected weather features still appear on the Map Page.
NOTE: You must have a subscription to XM WX Weather, and
the GXM 30 antenna must be plugged into the USB port on the
back of the unit to use features described in this section.
Main Menu—Weather Tab
For more information about XM Weather, see the “Using XM WX
Weather” section beginning on page 95.
68 GPSMAP 378/478 Owner’s Manual
MAIn Menu > gPs tAb And WeAther tAb