Becker TRAFFIC ASSIST HIGHSPEED 7934 - Manual (Page 32)

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Navigational mode
Navigational mode What is navigation?
Navigation (Latin navigare = to travel
by sea) is generally understood to mean
finding the position of a vehicle, deter-
mining the direction of and distance
from the desired destination and establi-
shing and following a route to this desti-
nation. Navigational aids include the
stars, distinct objects, a compass and sa-
tellites.
The Traffic Assist Highspeed uses its
GPS receiver to find the vehicle's positi-
on. (The Global Positioning System
(GPS) was developed by the US military
in the 1970's as a missile guidance sys-
tem.
GPS is based on a total of 24 satellites
circling the earth which continuously
emit signals. The GPS receiver receives
these signals and uses the delay of each
of the signals to calculate its distance
from the individual satellites. In turn, it
can use this information to determine its
current geographical position.
The signals of at least three satellites are
needed to establish position. If four or
more signals are available, height above
sea level can also be calculated).
Traffic Assist Highspeed determines the
direction of and distance to the destinati-
on with the aid of a digital road atlas on
the SD card and the navigation compu-
ter.
For safety, directions to the designation
are mainly provided verbally. The di-
rection display and map diagram on the
touch screen are further aids. !Safety information
• The road traffic act takes prece-
dence in all circumstances. The na-
vigational system is only an aid.
The data/details provided may in
some cases be incorrect. The driver
must always decide whether to fol-
low the details given or not.
We accept no liability for the navi-
gational system issuing incorrect
details.
• When first started up, it may take
up to 30 minutes before a position
can be determined.
• Precedence should always be given
to actual traffic signs and local traf-
fic rules.
• The directions only relate to cars.
Special recommendations and rules
for other vehicles (e.g. commercial
vehicles) are not taken into consi-
deration.
• Destinations may only be input
when the vehicle is stationary.