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Displaying 71 - 80 of 82
Artifact
The Trimble 4800 GPS Receiver was used by professional surveyors.
Artifact
The hand-held GPS receiver was used for tasks such as land surveying and providing accurate time.
Artifact
Joseph Guenther used a Defense Advanced GPS Receiver (DAGR) to direct artillery fire.
Photograph
The U.S. Naval Observatory Alternate Master Clock at Schriever Air Force Base.
Illustration
The UAT and similar transceivers are what make ADS-B possible.
Photograph
Satellite navigation is creating significant changes in the infrastructure of air navigation and air traffic control.
Photograph
The USS Alabama was outfitted with a SINS system for navigation.
Artifact
Stanley is an autonomous robotic vehicle that won the 2005 Grand Challenge.
Map
VOR-based airways have been reliable, but they create inefficiencies and bottlenecks that GPS-based systems are better positioned to resolve.
Illustration
Satellites and ground stations determine and broadcast corrections that enhance the navigational accuracy of the GPS system.
