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ACARS
Aircraft digital message communication system / From Wikipedia, the free encyclopedia
In aviation, ACARS (/ˈeɪkɑːrz/; an acronym for Aircraft Communications Addressing and Reporting System) is a digital datalink system for transmission of short messages between aircraft and ground stations via airband radio or satellite. The protocol was designed by ARINC and deployed in 1978,[1] using the Telex format. More ACARS radio stations were added subsequently by SITA.
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