Aircraft Systems

mode S transponder

An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.

Quick answer: An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.

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Languages

Quick answer

An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.

Why it matters

mode S transponder matters because it supports clear communication in Aircraft Systems 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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Questions and answers

Questions and answers

What is mode S transponder?

In this glossary, mode S transponder refers to: An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.

How is mode S transponder used in aviation?

In aviation communication, this term appears in contexts such as: "Mode S transponder set to IDENT, confirming with ATC for traffic identification."

Why does mode S transponder matter in aviation?

mode S transponder matters because it supports clear communication in Aircraft Systems 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.

Who uses mode S transponder?

mode S transponder is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does mode S transponder belong to?

In this glossary, mode S transponder is grouped under Aircraft Systems. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and surveillance functions.

Operational example

Mode S transponder set to IDENT, confirming with ATC for traffic identification.

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Aircraft Systems

Exam relevance

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

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

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