Eagle Electronics 2000 manual Map Datum Selection

keys and map cursor, you can scroll the map to see the third and fourth rings. In this example, the distance to the third ring is 75 miles and distance to the fourth ring is 100 miles from your current position.

To set range rings: From the Map Page, press MENU↓ to MAP DATAENT. Press ↓ and → to RANGE RINGS. With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXITEXIT to return to the page display.

To set Lat/Long Grid: From the Map Page, press MENU↓ to MAP DATAENT. Press ↓ and → to LAT/LON GRID LINES. With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXITEXIT to return to the page display.

Map Datum Selection

Maps and charts are based on a survey of the area that's covered by the map or chart. These surveys are called Datums. Maps that are created using different datums will show the same latitude/longitude in slightly different locations.

All datums have names. The GPS system is based on the WGS-84 datum, which covers the entire world. Other datums may also cover the entire world or just a small portion of it. By default, your unit uses the WGS-84 datum. It, however, can show your position using any of 191 different datums. To change the datum:

1.Press MENUMENU↓ to GPS SETUPENT↓ to DATUM SELECTIONENT.

2.Scroll ↓ or ↑ to select the desired datum, then press ENT.

3.To return to the last page displayed, press EXITEXIT.

A list of the datums used by this unit is in the back of this manual.

GPS Setup Menu (left); Map Datum Menu (right).

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