Navigon 81XX User Manual

Contents

Navigon 81XX User Manual Manual pdf 14 page image

User’s manual NAVIGON 81xx- 14 - Before you beginOn the rear of the navigation device is a ring which fits in the ring of thecradle.1. Align the head of cradle so that the button is on top.2. Tilt the top end of the navigation device slightly towards yourself.3. Position the recess in the ring of the navigation device so that it fitsin the ring of the cradle. (See illustration)4. Press the device against the cradle until you hear it lock in place.Removing the navigation device from the cradle1. Press the button on top of the cradle.2. Tilt the navigation device slightly towards yourself.3. Remove the device from the cradle.2.5 Navigating with GPSGPS is based on a total of at least 24 satellites which are circling theearth and constantly transmitting their position and time. The GPSreceiver receives this data and calculates its own geographical positionon the basis of the information transmitted by the various satellites.Data from at least three satellites is required for positioning with anacceptable degree of accuracy. With data from 4 or more satellites it ispossible in addition to determine the position's altitude above sea level.Positioning is accurate to within three metres.Once the navigation device has determined your position, this positioncan be used as a starting point for calculating a route.The map data on your navigation device includes the geographicalcoordinates of all digitally recorded points of interest, streets andplaces. This enables the device to calculate a route between a startingpoint and a destination.Calculation of the current position and its representation on the maptakes place once every second. In other words, your current position isalways shown on the map.