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  2. Identification friend or foe - Wikipedia

    en.wikipedia.org/wiki/Identification_friend_or_foe

    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]

  3. Air traffic control radar beacon system - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control_radar...

    Mode 3/A is used to identify each aircraft in the radar's coverage area. Mode C is used to request/report an aircraft's altitude. Two other modes, mode 4 and mode S, are not considered part of the ATCRBS system, but they use the same transmit and receive hardware. Mode 4 is used by military aircraft for the Identification Friend or Foe (IFF ...

  4. Aviation transponder interrogation modes - Wikipedia

    en.wikipedia.org/wiki/Aviation_transponder...

    The aviation transponder interrogation modes are the standard formats of pulsed sequences from an interrogating Secondary Surveillance Radar (SSR) or similar Automatic Dependent Surveillance-Broadcast (ADS-B) system. The reply format is usually referred to as a "code" from a transponder, which is used to determine detailed information from a ...

  5. IFF Mark X - Wikipedia

    en.wikipedia.org/wiki/IFF_Mark_X

    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. The X in the name does not mean "tenth ...

  6. Transponder (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Transponder_(aeronautics)

    The green IDENT button is marked "ID". A transponder (short for trans mitter-res ponder[ 1] and sometimes abbreviated to XPDR, [ 2] XPNDR, [ 3] TPDR [ 4] or TP [ 5]) is an electronic device that produces a response when it receives a radio-frequency interrogation. Aircraft have transponders to assist in identifying them on air traffic control ...

  7. Interchange File Format - Wikipedia

    en.wikipedia.org/wiki/Interchange_File_Format

    Interchange File Format. Interchange File Format ( IFF) is a generic digital container file format originally introduced by Electronic Arts (in cooperation with Commodore) in 1985 to facilitate transfer of data between software produced by different companies. IFF files do not have any standard filename extension.

  8. Automatic identification system - Wikipedia

    en.wikipedia.org/wiki/Automatic_identification...

    The automatic identification system ( AIS) is an automatic tracking system that uses transceivers on ships and is used by vessel traffic services (VTS). When satellites are used to receive AIS signatures, the term Satellite-AIS (S-AIS) is used. AIS information supplements marine radar, which continues to be the primary method of collision ...

  9. Tel-Instrument Announces DoD AIMS Program Office ... - AOL

    www.aol.com/news/2013-03-14-tel-instrument...

    Tel-Instrument Announces DoD AIMS Program Office Certification on the TS-4530A Mode 5 IFF Flight-Line Test Set Production Contracts Now In Place to Fully Satisfy the Mode 5 Testing Requirements of ...