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PNT Ground Networks

PNT Ground Networks

Global navigation satellite systems (GNSS) provide positioning, navigation, and timing information. These satellite systems are augmented by ground stations which can be used as reference points to increase the accuracy of information derived from the satellite signals.


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Responsibility for the operation of the Galileo constellation’s ground system moved in 2018 from the European Space Agency (ESA)...
Year: 2018
Country: United States
In 2018, the USAF continued GPS operations with ground equipment that is decades...
Year: 2018
For PNT satellites to function reliably and in some cases provide more than just the basic function of timing signals from space to the ground...
Year: 2017
During 2017, the United States Air Force still conducted operations with decades-old ground equipment. The ground network consisted of ## command and control antennas and a total of...
Year: 2016
Country: United States
In 2016, the U.S. Air Force (USAF) continued to operate and maintain a large, combined-services ground network for its positioning, navigation, and timing (PNT) fleet, the Global Positioning System (GPS). Consisting of 15 monitoring stations and 11 command and control antennas, the network was...
Year: 2015
Country: United States
The current U.S. Global Positioning System (GPS) ground control segment consists of a variety of ground antennas, monitor stations, and Air Force Satellite Control Network (AFSCN) Remote Tracking Stations. The ## monitoring stations, including those owned by the National Geospatial-Intelligence...
Year: 2010
In a relatively new development, commercial companies now sell reference stations that can be operated by local governments, businesses, and individuals. Reference stations are fixed GPS receivers whose position on Earth’s surface is known with a very high degree of accuracy.

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