The air traffic control radar beacon system is a system used in air traffic control to enhance surveillance radar monitoring and separation of air traffic. It consists of a rotating ground antenna and
The antenna system of a typical air traffic control radar, the ASR-9. The curved reflector antenna on the bottom is the primary surveillance radar (PSR), and the flat antenna on top of it is the secondary surveillance radar (SSR). In operation the antenna rotates about a vertical axis, sweeping a vertical fan-shaped beam of microwaves around the local airspace to locate and track aircraft.
A light aircraft transponder
Detail of a radarscreen: a target in skin paint mode (amber) and as synthetic video (white)
Traffic alert and collision avoidance system, also called an airborne collision avoidance system, is an aircraft collision avoidance system designed to reduce the incidence of mid-air collision betwee
Air traffic control radar beacon system
…for the Identification Friend or Foe (IFF) system. Mode S is a discrete selective interrogation, rather than a general broadcast, that facilitates TCAS for civilian aircraft. Mode S transponders ignore interrogations not addressed with their unique identity code, reducing channel congestion. At a typical…
Combined TCAS and EHSI cockpit display (color)
Combined TCAS and VSI cockpit display (monochrome)