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IFF Mark II was the first operational identification friend or foe system. It was developed by the Royal Air Force just before the start of World War II . After a short run of prototype Mark I s, used experimentally in 1939, the Mark II began widespread deployment at the end of the Battle of Britain in late 1940.
Identification, friend or foe (IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]
IFF Mark III, also known as ARI.5025 in the UK or SCR.595 in the US, was the Allied Forces standard identification friend or foe (IFF) system from 1943 until well after the end of World War II. It was widely used by aircraft, ships, and submarines, as well as in various adaptations for secondary purposes like search and rescue . 500 units were ...
Telephonics Corporation awarded contract for Identification Friend or Foe systems to be integrated on USAF E3 AWACS systems FARMINGDALE, N.Y.--(BUSINESS WIRE)-- Telephonics Corporation, a wholly ...
IFF Mark X was the NATO standard military identification friend or foe transponder system from the early 1950s until it was slowly replaced by the IFF Mark XII in the 1970s. It was also adopted by ICAO, with some modifications, as the civilian air traffic control (ATC) secondary radar (SSR) transponder.
ID (pronounced eye dee) Directive to identify the target. Identification accomplished, followed by type. In (direction) Informative call indicating a turn to a hot aspect relative to a threat/target. India Mode IV. Indians Ships of an ASUW Surface Attack Group (SAG). Interrogate Interrogate the designated contact of the IFF mode indicated.
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FuG 25a Erstling (German: "Firstborn", "Debut", sometimes FuGe) was an identification friend or foe (IFF) transponder installed in Luftwaffe aircraft starting in 1941 in order to allow German Freya radar stations to identify them as friendly.