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secondary surveillance radar

comm. radar secundário; radar secundário de vigilância
sciences., transp. radar de vigilância secundário
transp., aviat. equipamento SSR secundário
 Anglais glossaire
secondary surveillance radar
aviat. A surveillance radar system which uses transmitters/receivers interrogators and transponders. (The requirements for interrogators and transponders are specified in Chapter 3.)
aviat., canad. A radar system that requires complementary aircraft equipment transponder. The transponder generates a coded reply signal in response to transmissions from the ground station interrogator. Since this system relies on transponder-generated signals rather than signals reflected from the aircraft, as in primary surveillance radar, it offers significant operational advantages such as increased range and positive identification.
secondary surveillance radar
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