Satellite Window ? SOG, COG and altitude.The latitude and longitude values relevant to the boat’s posi-tion are displayed as soon as three satellites are tracked and a 2D fix (two dimensions) is available.The altitude value is available only if four satellites are trackedand a 3D fix is obtained.As soon as a valid fix is available, the GEONAV will automati-cally switch to Navigation mode and display the boat’s posi- tion at the best chart range available; the window at the bot- tom of the screen will indicate the boat’s course and speed. 36 Navigation Window This window is activated automatically as soon as the GPSreceiver has obtained the boat’s position (FIX OK).If no route is present, speed,course and chart range are dis- played at the bottom of the screen.By using the NAVIGATION WINDOW ZOOM key, the chartdetail level can be increased, thus accessing NAVIONICS chart data.If a route has been inserted, thescreen will display the follow- ing data:?Boat’s speed?Distance from the targetwaypoint?Estimated time of arrival atthe target waypoint?Chart range EnglishEnglish 37