Advanced ATC
自动相关监视广播（出）
A surveillance technology in which an aircraft automatically broadcasts its position, velocity, and identification derived from GNSS, used by ATC and other aircraft (ICAO Annex 10, Doc 4444).
Quick answer: A surveillance technology in which an aircraft automatically broadcasts its position, velocity, and identification derived from GNSS, used by ATC and other aircraft (ICAO Annex 10, Doc 4444).
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Quick answer
A surveillance technology in which an aircraft automatically broadcasts its position, velocity, and identification derived from GNSS, used by ATC and other aircraft (ICAO Annex 10, Doc 4444).
Why it matters
自动相关监视广播（出） matters because it supports clear communication in Advanced ATC contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.
Editorial context
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