Satellite navigation facts for kids

Kids Encyclopedia Facts
(Redirected from GNSS)
GPSTest GNSS 2019 Android
GPSTest showing the available GNSS in 2019. Since the 2010s, satellite navigation is widely available on civilian devices.

A satellite navigation or satnav system is a way of pinpointing position very exactly.

Satnav uses a system of satellites. The system gives exact positioning. It allows small electronic receivers to find their position (longitude, latitude, and altitude/elevation). The position is given within a few metres using time signals transmitted along a straight line (line of sight) by radio from satellites. The signals also allow the electronic receivers to calculate the current local time to high precision, which allows time synchronisation. A satellite navigation system with global coverage may be called a global navigation satellite system (GNSS).

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Satellite navigation Facts for Kids. Kiddle Encyclopedia.