From that point, ARINC became the official registrar of SELCAL codes, accepting all SELCAL applications directly, as well as providing an annual report to ICAO with a summary of SELCAL usage. Shortly after the introduction of SELCAL Operations, ICAO formally transferred the SELCAL registration and management functions to Aeronautical Radio Incorporated (ARINC). SELCAL began use in civil aviation in 1957 under the direction of ICAO. Despite the increasing capability of aircraft satellite communications, traditional radio communications with SELCAL remain in extensive use for delivering Air Traffic Control (ATC) messages and other aviation communications to aircraft in remote areas.įor more information, please see How SELCAL Worksįor SELCAL applications, please use the Online SELCAL Application This means aircrew are alerted to a request for communications without having to listen continuously to messages for other aircraft. SELCAL works by each aircraft being assigned a different 4-character SELCAL code that allows airlines and communication providers to contact a specific aircraft on a common radio voice frequency. Selective Calling (SELCAL) is an International Civil Aviation Organization (ICAO) managed communications method used to notify aircraft that a ground radio station wishes to communicate.
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