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Using Charts
12 GPSMAP 400/500 Series Owner’s Manual
—displays a compass rose
around your boat, indicating compass
direction. True wind direction or apparent wind direction
displays if the unit
is connected to a compatible marine wind sensor.
—sets up and displays various weather parameters, including
precipitation (NEXRAD), cloud cover, visibility, WX buoys, and the weather
legend. Sea temperature and sh species can be displayed on the Fishing chart.
See the GPSMAP 400/500 Series Weather Supplement for more information.
 If  is set to , none of the weather options will be visible
on the chart.

From the Home screen, select  >  >  >
 >  .
—changes the perspective of the map display.
—sets the top of the map display to a north heading.
—sets the map display to the current track heading.
—sets the map so the direction of navigation is always up. The
heading line appears vertically on the screen if shown.
—adjusts the amount of detail shown on the map at different zoom
levels.
Press left on the  to decrease map detail.
Press right on the  to increase map detail.
—draws an extension line from the bow of the boat in the
direction of travel.
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