Satellite Navigation
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3
Satellite Navigation
INTRODUCTION
The satellite navigation system fitted to your car uses the Global
Positioning System (GPS). GPS works in conjunction with
direction and speed sensors incorporated into the car’s electronic
systems, to continually monitor the position of the car. The
navigation computer then integrates this data with the information
stored on the navigation CD, enabling you to plan and follow a
route map to your desired destination. This is particularly useful if
you are travelling to or through unfamiliar territory.
In addition, the satellite navigation system provides the following
facilities:
•
Recommended routes allowing for personal preferences (fastest
route, without using motorways etc).
•
Destination input using either town /road name, or by
selecting a point of interest.
•
Audio and visual destination guidance, including automatically
updated instructions (in case of ignored instructions, or if road
works cause a diversion). Audio instruction is provided via a
speaker located in the driver’s footwell. Visual instruction is
displayed in the message centre in the upper centre of the
instrument pack.
•
General information on destination and present location
(hotels, restaurants, parking etc).
•
An address book to store frequently needed destinations.
There are 24 GPS satellites in orbit (at a height of 21,000 km)
around the earth. The GPS navigation system will pick up and
utilise any available signals to plot your position. To accurately
determine your position, the GPS receiver needs to be able to pick
up the signals from at least four satellites.
Obstacles such as tall buildings, tunnels and mountains can
sometimes shield a vehicle from satellite signals, which may cause
a temporary interruption to the operation of the navigation system.
However, the car’s direction and speed sensors minimise any effect
on the performance of the navigation system, if this should occur.
Normal operation will resume once the obstruction has been
passed.
The navigation system is designed only as a guide and does not
relieve the driver of the responsibility for driving in accordance
with traffic regulations.
In the interests of road safety, information should only be
programmed into the navigation system when the car is stationary.
H2931
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