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0041–0057. Belgium. Assigned for VFR traffic under Flight Information Services (BXL FIC). [citation needed] 0100. Australia. Flights operating at aerodromes (in lieu of codes 1200, 2000 or 3000 when assigned by ATC or noted in the Enroute Supplement). [6] 0100–0400.
These area codes were changed in February 1997 in order to allow service 0900 numbers: 9002 → 09090 Rain (Lech) 9003 → 09080 Harburg (Schwaben) 9004 → 09070 Tapfheim. 9005 → 09084 Bissingen (Schwaben) 9006 → 09078 Mertingen. 9007 → 09097 Marxheim. 9008 → 09089 Bissingen-Unterringingen. 9009 → 09099 Kaisheim.
Description of the code. The code is set up as follows: X YYYY Z. where X denotes the Bundesbahndirektion (BD) in West Germany or Reichsbahndirektion (Rbd) in East Germany and prior to 1949, and YYYY is the code of the station itself, which can be up to four letters. Together with the Direktionen letter ( X or Z) the first letter is also the ...
Airline Designator / Code Database Search Archived 2005-10-01 at the Wayback Machine (from The Airline Codes Web Site) Airline Designator / Code Database Search (from Aviation Codes Central Web Site - Regular Updates) Airline Designator / Code Listing (from FAA Web Site) European Airline Designator / Code Database Search (Eurocontrol Web Site)
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 ...
A discrete transponder code (often called a squawk code) is assigned by air traffic controllers to identify an aircraft uniquely in a flight information region (FIR). This allows easy identification of aircraft on radar. [6] [7] Codes are made of four octal digits; the dials on a transponder read from zero to seven, inclusive. Four octal digits ...
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter.
The transponder has a small required set of controls and is simple to operate. It has a method to enter the four-digit transponder code, also known as a beacon code or squawk code, and a control to transmit an ident, which is done at the controller's request (see SPI pulse below). Transponders typically have 4 operating modes: Off, Standby, On ...