![]() IDENT should only be pressed on ATC request. ![]() TA/RA : The "TA/RA" position will provide traffic advisory resolution.Īll mode A, C, and S transponders include an IDENT button, which activates a special function known as IDENT (short for identify) in order to help air traffic controllers locate an aircraft.TA : The "TA" position will provide traffic advisory. ![]() ALT: The "ALT" position (MODE C or S) will additionally transmit altitude information.ON : The "ON" position (MODE A) will only send primary information to the radar (code and position).STBY: The "STBY" position will power the transponder and make it ready for operation (warming up).OFF : The "OFF" position will power down the transponder.¶ Transponder settingsĪ transponder switch usually has several positions: The transponder mode S is the most widely used mode. Mode S : (for 'Selective') provides multiple information formats to a selective interrogation (data exchange), including the call sign - it is designed to help avoiding over-interrogation and to allow automatic collision avoidance. Mode C : provides identifying code and aircraft pressure altitude, Mode A : equipment transmits an identifying code only, Depending on the interrogation mode, transponders can provide identification code, aircraft position, pressure altitude, call sign and other information.ĭescription of different transponder modes: Several different RF (Radio Frequency) communication protocols have been standardized for civilian aviation transponders. After decoding and measuring the delay of answer, the transmitted signal is used on ATC radar to identify the aircraft (code and/or call sign) and displays relevant information (azimuth, altitude, speed, flight path). The aircraft answers on the 1090 MHz radio frequency with another pulsed signal. The ATC radar sends an interrogative 1030 MHz radio frequency pulsed signal. ¶ Transponder in real life ¶ Technical description It assists ATC (air traffic controllers) in identifying aircraft on a radar scope and other aircraft's collision avoidance systems. A transponder (short-for transmitter-responder) is an inboard electronic device that produces a response when it receives a radio-frequency interrogation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |