Audiovox NAV3000 Instrucciones De Manejo Y De Montaje página 12

GENERAL INFORMATION
Important notes on the function of your Navigation
System
In general the navigation system is operational even with bad GPS reception (GPS =
Global Positioning System by satellites), but the accuracy of positioning may decrease
and errors in position evaluation may occur, resulting in wrong position display.
Start-up behaviour
When starting up, the Navigation System may tell you: "You are leaving the digitized
area". It supposes the vehicle in an off-road position. If there are other roads in this
position, the Navigation System may send inappropriate messages. This means that it
supposes the vehicle is on one of the other roads.
When the vehicle has been parked for a long period of time, the navigation function
may be temporarily inhibited. The Navigation System will operate reliably again once
GPS reception is available for a few minutes.
Notes
After transport of the car by a tow truck, car train or in a car ferry the navigation
system may need a few minutes outdoors for exact repositioning.
After the car battery has been disconnected, the system may need up to 15 minutes
for exact repositioning. The car has to be situated outdoors and the system has to be
switched on to receive the GPS satellites.
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When the vehicle is parked for a long period of
time, the satellites change their orbital positions.
Therefore, when the ignition is turned on again
it can take a few minutes before the Navigation
System can pick up enough satellites and
evaluate the received signals.