Aviation English
Advanced ATC

What is Automatic Dependent Surveillance Broadcast Out?

Automatic Dependent Surveillance Broadcast Out 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).

Source: ICAO Doc 9432, FAA PCG

How is “Automatic Dependent Surveillance Broadcast Out” Used in Practice?

Ensure ADS-B Out is operating before entering controlled airspace, report any malfunctions immediately.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

Automatic Dependent Surveillance Broadcast Inautomatic dependent surveillance–broadcastReduced Vertical Separation Minimum ApprovalAutomatic Dependent Surveillance Contract

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Frequently Asked Questions

What is Automatic Dependent Surveillance Broadcast Out?

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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