Magellan GPS 300 User Manual - Page 31

Changing Map Datums If you are using a map (or chart) in conjunction with your GPS 300 you need to insure that the datum used by the GPS 300 matches the one used in creating the map. The map datum can usually be found in the legend box of the map or chart. The GPS 300 offers the choices of WGS84 (default) or NAD27. Press the MENU key until SETUP is displayed at the top of the screen and press ENTER . Use the RIGHT ARROW until SETUP MAP DATUM is displayed. Press ENTER again, the currently used map datum begins to flash. Use the RIGHT/ LEFT ARROWs to scroll through the list of map datums and press ENTER when the desired datum is displayed. Changing Distance Units Your distance units can be in miles and miles per hour (MIMPH), nautical miles and knots (NM-KTS), or kilometers and kilometers per hour (KM-KPH). To change the units, press MENU until SETUP is displayed at the top of the screen and press ENTER . Use the RIGHT ARROW until SETUP UNITS is displayed. Press ENTER again and, the distance unit of measure begins to flash. Use the RIGHT/LEFT ARROWs to scroll through the list of units and press ENTER when the desired unit of measure is displayed. 27