Navigon 20 easy User Manual - 2.5
User's manual NAVIGON 20 EASY | 20 PLUS
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Before you begin
required, it can change your route dynamically, e.g. in order to avoid a
traffic jam.
2.4.4 Memory
card
A memory card is not required to operate the navigation system
because all the data needed for navigation are stored in the internal
memory of the device.
When you connect the navigation system to your computer using a USB
cable, the internal memory is detected as the 'NAVIGON' drive. The slot
for the memory card is detected as the 'NAVIGON SD' drive.
Data backups, software updates and navigation map updates can be
carried out quickly and conveniently with the NAVIGON Fresh software,
which you can download free of charge from the website
www.navigon.com/fresh
.
If you purchase additional navigation maps but no longer have enough
space for them in the internal memory of your navigation device, it is
also possible for you to save these maps on a memory card which you
then insert in the device. The navigation system can use navigation
maps from both memories.
Only NAVIGON 20 PLUS:
In the case of devices with a DVD included in the delivery package it is
not possible to save all the maps in the internal memory of the
navigation device. On the DVD you will find all the maps you have
purchased along with other items. To use the maps with your navigation
system, save them on a memory card. This can be done quickly and
conveniently with the NAVIGON Fresh software, which you can install
on your PC from the supplied DVD.
2.5
Navigating with GPS
GPS is based on a total of at least 24 satellites orbiting the Earth and
continuously transmitting signals of their position and time. The GPS
receiver receives this data and calculates its own geographical position
on the basis of the information transmitted by the various satellites.
Data from at least three satellites is required for positioning with an
acceptable degree of accuracy. With data from four or more satellites it
is possible 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 position
can be used as a starting point for calculating a route.
The map data on your navigation device includes the geographical
coordinates of all digitally recorded points of interest, streets and
places. This enables the device to calculate a route between a starting
point and a destination.