Navi Camera GSF9750, Руководство пользователя

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About GPS Signals
GPS signals can be affected by the surrounding environmental factors. These may
include, High rise buildings, concrete roofing, tunnels and magnetic areas. Please
allow extra time for the unit to receive signal if you can see any of these factors.
The Global Positioning System (GPS) is available at any time, free of charge, and is
accurate to within 5m (15ft). GPS navigation is made possible by a network of
satellites that orbit the Earth at around 20,200km (12,552mi). Each satellite
transmits a range of signals which are utilized by GPS receivers, such as your Unit,
to determine an exact location. Although a GPS receiver can detect signals from up
to 12 satellites at any time, only four signals are required to provide a position or
"GPS fix" (latitude and longitude), for vehicle navigation systems.
Your device receives GPS signals via the internal GPS antenna. To guarantee the
optimum GPS signal strength, ensure your device is outdoors, or in a vehicle
outdoors, and has an unobstructed view of the sky. GPS reception is not usually
affected by weather, however, very heavy rain or snow may have a negative effect
on your reception.