Satellite navigation device
A satellite navigation device, satnav device or satellite navigation receiver is a user equipment that uses one or more of several global navigation satellite systems (GNSS) to calculate the device's geographical position and provide navigational advice.
Depending on the software used, the satnav device may display the position on a map, as geographic coordinates, or may offer routing directions.
Vehicle navigation on a personal navigation assistant
Garmin eTrex10 edition handheld
A 1993 Magellan Trailblazer XL GPS Handheld Receiver
Hand-held receivers
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geopositioning. A satellite navigation system with global coverage is termed global navigation satellite system (GNSS). As of 2023, five global systems are operational: the United States's Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), India's Indian Regional Navigation Satellite System (IRNSS), China's BeiDou Navigation Satellite System (BDS), and the European Union's Galileo.
The U.S. Space Force's Global Positioning System was the first global satellite navigation system and the first to be provided as a free global service.
Launched GNSS satellites 1978 to 2014
