What is an IFF interrogator?
Identification Friend or Foe (IFF) Interrogators are electronic devices that emit an “interrogating” radio signal at one frequency, prompting an IFF Transponder to emit a reply signal at a different frequency, indicating that an approaching aircraft is “friendly. An IFF transponder receives interrogation pulses at one frequency (1030 MHz), and sends the reply pulses at a different frequency (1090 MHz). Proper use of IFF facilitates rapid engagement of enemy aircraft, conserves air defense assets, and reduces risk to friendly aircraft.
Is there another word for iff?
In current practice, the single ‘word’ iff is almost always read as the four words if and only if. Usually iff is used for equivalence in the metalanguage, rather than as the biconditional in the object language.
What is the difference between IFF and transponder?
Transponders first came into use to enable military authorities to identify friendly aircraft, which transmitted a coded signal when interrogated by military radar. This was known as IFF (Identification Friend or Foe). Subsequently, transponders have come into widespread use in civil as well as military aviation. Transponders are typically used for detecting, identifying and locating objects, but they can also be used in other technologies, such as in satellites to relay communications signals. Transponders are commonly found in both civilian and military aircraft and in objects, such as car keys.Transponders are used to give information to ATC about an airplane’s location in space and in most cases its altitude as well. This instrument can identify an airplane uniquely and serves the main purpose of helping ATC keep airplanes separated, all in the service of safety in air travel.In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend of transmitter and responder.