Map Data Menu.
Show Map Data
Press MENU↓ to MAP DATAENT. Press ENT to enter the EARTH MAP DETAIL selection list, and choose how much detail you want, from Off (so the unit operates like a GPS plotter) to High. After the option is set, press EXIT to return to the page display.
Popup Map Information
Press MENU↓ to MAP DATAENT. Press ↓ to POPUP INFORMATION. With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXIT to return to the page display.
Draw Boundaries
Press MENU↓ to MAP DATAENT. Press ↓ to DRAW BOUNDARIES. With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXIT to return to the page display.
Fill Land With Gray
Press MENU↓ to MAP DATAENT. Press ↓ to FILL LAND WITH GRAY. With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXIT to return to the page display.
Map Overlays (Range Rings; Lat/Long Grid)
The map screen can be customized with four range rings and/or grids that divide the plotter into equal segments of latitude and longitude.
Range rings are handy for visually estimating distances on the map. The ring diameters are based on the current zoom range. For example: at the 100 mile zoom, the screen will show two rings with your current position in the center. The large ring touching the left and right sides of the screen is 100 miles in diameter (same as the zoom range). The sec- ond smaller ring is 50 miles in diameter (always 1/2 the zoom range).
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