identification, friend or foe

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Related to Secondary surveillance radar: primary radar, ATCRBS

identification, friend or foe

A device that emits a signal positively identifying it as a friendly. Also called IFF. See also air defense.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
References in periodicals archive ?
The device also has uAvionix's patented Power Transcoder, which ensures the correct synchronization of data elements between the secondary surveillance radar (SSR) replies and ADS-B transmissions.
The Secondary Surveillance Radar can obtain detailed flight information, even from congested airspace.
If approach's secondary surveillance radar cannot see the traffic, there's nothing to transmit via TIS.
"During this manoeuvre its Secondary Surveillance Radar which automatically broadcasts the aircraft's height was switched off, though it was on before and after the incident.
The system has been selected for the location and identification of flights in the vicinity of Edinburgh Airport and replaced the existing Monopulse Secondary Surveillance Radar (MSSR).
Defence Electronics (DE), an integrated activity of DS, has been awarded the Maritime Mode S Interrogator Capability (MSMIC) contract by the UK MoD to deliver its MSSR (Monopulse Secondary Surveillance Radar) 2000 I identification systems for the installation by 2011 onboard vessels such as the Type 42 destroyers, the "Invincible" class aircraft carriers and the future assault ships.
By means of a transponder, aircraft taking off and landing at Coventry are shown on the secondary surveillance radar at Birmingham Airport, so its air traffic controllers know that these aircraft are Coventry's.
The TPS-77 radar is composed of a three dimensional L-Band primary surveillance radar and a monopoles secondary surveillance radar. The system provides air surveillance information to be used in the conduct of air sovereignty operations.
Release date- 21082019 - Sensor solutions supplier, HENSOLDT has successfully passed certification of their MSSR 2000 I identification system (MSSR = Monopulse Secondary Surveillance Radar) by the AIMS Program Office of the US Department of Defense.
The Civil Aviation Authority of the Philippines (Caap) issued a notice to airmen, advising them of the scheduled corrective maintenance of the Tagaytay monopulse secondary surveillance radar (MSSR).
It also noted the jets did not have a working secondary surveillance radar and exposed the fact that one of the two did not have a working radar homing and warning receiver that day.