Navigon Fujitsu Siemens Pocket LOOX N100 - Manual (Page 14)

User Manual MobileNavigator 6
- 12 - How your navigation system works
2.1 How your navigation system works
The days of searching for the correct route through thick folding
maps are over. Now your navigation software
MobileNavigator 6 can guide you to your destination quickly
and reliably – without leafing through maps.
The American military developed the Global Positioning System
(GPS) in the 70s to be used as a guided weapons system.
GPS is based on a total of 24 satellites that circle the earth and,
in doing so, are constantly transmitting their position and their
time. The GPS receiver receives this data and calculates its own
geographical position from the various position and time
information broadcast by the different satellites.
For a sufficient, precise positioning it is necessary to obtain the
data from at least three satellites. If you have the data from 4 or
more satellites the altitude above sea level can also be
ascertained. The positioning is precise up to 3 metres.
If MobileNavigator 6 has determined you rposition, this position
can be used as a starting point for a route calculation.
The map material of your navigation device includes the
geographical coordinates of all the digitally recorded points of
interest, streets and locations. The navigation device can
therefore calculate a path from a starting point to a destination.
The calculation of the current position and its representation on
the map takes place once every second. So you can see where
you are on the map.