transponder

/trænˈspɒndə(r)/ (bre, ipa) · [trænspˈɑndɚ] /trænˈspɑːndər/ (ame, ipa) · [trænspˈɑndɚ] /tran(t)-ˈspän-dər How to pronounce transponder (audio)/ (ame, mw)

transponder — 名詞

  • transpondersingular
  • transpondersplural

1. a small electronic unit that listens for an incoming radio message and automatic

1.名詞B2
釋義

轉發器

接收訊號後自動回傳的電子裝置

a small electronic unit that listens for an incoming radio message and automatically replies with a different signal, often used in aircraft, satellites, or road tolls to show position or pass along information

例句

The pilot checked that the plane's transponder was sending the correct code before takeoff.

起飛前，機長確認飛機的轉發器正在發送正確的編碼。

transponder + sending + code (common in aviation)

Satellites use transponders to receive signals from one ground station and send them to another location.

衛星利用轉發器接收來自一個地面站台的訊號，再傳送到另一個地點。

transponder receives and sends signals (relay function)

同義詞
  • beacon

    a beacon continuously broadcasts a signal for guidance, whereas a transponder only replies when triggered

  • responder

    more general term for any device that replies to a signal, but less common in everyday technical use

用法筆記

Often appears in compound nouns: transponder signal, transponder code, transponder system.

常見錯誤

❌The plane's transmitter answered the tower.
✅The plane's transponder answered the tower.
💡a transmitter only sends; a transponder both receives and replies.