Radio Detection and Ranging
A radio detective device which provides information on range, azimuth and/or elevation of objects.
Definition: Primary Radar
A radar system which uses reflected radio signals.
Definition: Secondary Radar
A radar system wherein a radio signal transmitted from the radar station initiates the transmission of a radio signal from another station.
Definition: Surveillance Radar
Radar equipment used to determine the position of an aircraft in range and azimuth.
Definition: Primary Surveillance Radar (PSR)
A surveillance radar system which uses reflected radio signals.
Definition: Secondary Surveillance Radar (SSR)
A surveillance radar system which uses transmitters/receivers (interrogators) and transponders.
Definition: Situation Display
An electronic display depicting the position and movement of aircraft and other information as required.
The visual indication on a situation display of unwanted signals.