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About: Airport surveillance radar     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatMilitaryRadarsOfTheUnitedStatesyago:Artifact100021939yago:Device103183080yago:Instrument103574816yago:Instrumentality103575240yago:MeasuringInstrument103733925yago:Object100002684yago:PhysicalEntity100001930yago:Radar104039848yago:WikicatGroundRadarsyago:Whole100003553 New Facet based on Instances of this Class

An airport surveillance radar (ASR) is a radar system used at airports to detect and display the presence and position of aircraft in the terminal area, the airspace around airports. It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of the airport below an elevation of 25,000 feet. The sophisticated systems at large airports consist of two different radar systems, the primary and secondary surveillance radar. The primary radar typically consists of a large rotating parabolic antenna dish that sweeps a vertical fan-shaped beam of microwaves around the airspace surrounding the airport. It detects the position and range of aircraft by microwaves reflected back to the antenna from the