Reference; What Is Gps; How Does My Navman Receive Gps Signals; Caring For Your Navman - Navman s-series Hardware User Manual

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Reference

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 Navman, 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 Navman receives GPS signals via the internal GPS antenna. To guarantee the optimum GPS signal strength,

ensure your Navman 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.

For more information about GPS, refer to the GPS Navigation - Frequently Asked Questions guide on the

enclosed DVD.

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