88ReferenceWhat is GPS?The Global Positioning System (GPS) is available at any time, free of charge, and isaccurate to within 5m (15ft). GPS navigation is made possible by a network of satellitesthat orbit the Earth at around 20,200km (12,552mi). Each satellite transmits a range ofsignals which are utilized by GPS receivers, such as your Navman, to determine an exactlocation. 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.How does my Navman receive GPS signals?Your Navman receives GPS signals via the internal GPS antenna. To guarantee theoptimum 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 byweather, however, very heavy rain or snow may have a negative effect on your reception.Caring for your NavmanTaking good care of your Navman will ensure trouble-free operation and reduce the risk ofdamage to your Navman: Keep your Navman away from excessive moisture and extreme temperatures. Avoid exposing your Navman to direct sunlight or strong ultraviolet light for extendedperiods of time. Do not place anything on top of your Navman or drop objects on your Navman. Do not drop your Navman or subject it to severe shock. Do not subject your Navman to sudden and severe temperature changes. This couldcause moisture condensation inside the unit, which could damage your Navman. Inthe event of moisture condensation, allow your Navman to dry out completely beforeuse.
