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What is navigation?
Navigational mode
Navigation (Latin navigare = to travel by
sea) is generally understood to mean find-
ing the position of a vehicle, determining
the direction of and distance from the de-
sired destination and establishing and fol-
lowing a route to this destination. Naviga-
tional aids include the stars, distinct
objects, a compass and satellites.
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 mis-
sile guidance system.
GPS is based on a total of 24 satellites cir-
cling 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 geo-
graphical 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 mainly provided verbally. The direc-
tion display and map diagram on the
touch screen are further aids.
NAVIGATIONAL MODE
!Safety information
• The road traffic act takes precedence in
all circumstances. The navigational sys-
tem 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 details.
• When first started up, it may take up to
30 minutes before a position can be de-
termined.
• Precedence should always be given to
actual traffic signs and local traffic
rules.
• The directions only relate to cars. Spe-
cial recommendations and rules for
other vehicles (e.g. commercial vehi-
cles) are not taken into consideration.
• Destinations may only be input when
the vehicle is stationary.
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