Becker TRAFFIC ASSIST 7914 - Manual (Page 29)

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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 estab-
lishing and following a route to this des-
tination. Navigational aids include the
stars, distinct objects, a compass and sat-
ellites.
The Traffic Assist uses its GPS
receiver to find the vehicle’s position.
(The Global Positioning System (GPS)
was developed by the US military in the
1970’s as a missile guidance system.
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 determines the direction
of and distance to the destination with
the aid of a digital road atlas on the SD
card and the navigation computer.
For safety, directions to the designation
are
PDLQO\ SURYLGHG YHUEDOO\ The di-
rection display and map diagram on the
touch screen are further aids.
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• The road traffic act takes precedence
in all circumstances. The navigational
system is only an aid. The data/details
provided may in some cases be incor-
rect. The driver must always decide
whether to follow the details given or
not.
We accept no liability for the naviga-
tional system issuing incorrect de-
tails.
• 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 traffic
rules.
• The directions only relate to cars.
Special recommendations and rules
for other vehicles (e.g. commercial
vehicles) are not taken into consider-
ation.
• Destinations may only be input when
the vehicle is stationary.
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