transponder應答器 -The report focuses on the lack of transponders in the fire trucks, Flight First 應答器是一種電子設備，當接收到特定的詢問訊號時，它會自動接收、放大並重新發送訊號（或發出新的訊號）。應答器是「發射器」（transmitter）和「應答器」（responder）的組合詞，這些設備對於航空、衛星技術和安全系統中的識別、通訊和位置追蹤至關重要。

 

Communication Failures Preceded Deadly Crash at LaGuardia, N.T.S.B. Says

The report focuses on the lack of transponders in the fire trucks, which investigators suggested could have allowed an automatic warning system to alert the controller of an imminent collision.

應答器

/trɑːn(t)ˈspɒndə/

應答器 - Flight First 應答器是一種電子設備，當接收到特定的詢問訊號時，它會自動接收、放大並重新發送訊號（或發出新的訊號）。應答器是「發射器」（transmitter）和「應答器」（responder）的組合詞，這些設備對於航空、衛星技術和安全系統中的識別、通訊和位置追蹤至關重要。

劍橋字典

主要應用和用途

航空（空中交通管制）：飛機應答器向空中交通管制（ATC）雷達發送4位數的應答機代碼和高度數據，從而識別飛機並提高安全性。

衛星：通訊衛星使用應答器接收來自地球的訊號，改變其頻率，然後重新發送。

日常技術：用於汽車的免鑰匙進入系統、自動收費系統（例如E-ZPass）以及用於追蹤比賽參與者的RFID標籤。

光纖：轉發器將短距離光訊號轉換為遠距離訊號，用於網路通訊。

韋氏字典

常見轉發器類型和模式

Alpha 模式 (A)：傳送 4 位數識別碼。

Charlie 模式 (C)：傳送辨識訊息和氣壓高度。

Sierra 模式 (S)：提供進階功能，發送識別資訊、高度、速度和註冊詳情。

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與其他設備的區別

轉發器與收發器：轉發器僅在接收到訊號時才發送訊號，而收發器是發射器和接收器的組合，用於持續通訊。

主動式與被動式：主動式轉發器需要電源才能發送訊號，而被動式轉發器（例如 RFID 標籤）則由接收到的訊號供電。

Moonraker Online

transponder

/trɑːn(t)ˈspɒndə/

A transponder is an electronic device that automatically receives, amplifies, and retransmits a signal (or emits a new one) upon receiving a specific interrogation signal. A blend of "transmitter" and "responder," these devices are critical for identification, communication, and location tracking in aviation, satellite technology, and security systems. 

Key Applications and Uses

• Aviation (ATC): Aircraft transponders send a 4-digit squawk code and altitude data to Air Traffic Control (ATC) radar, identifying the aircraft and enhancing safety.
• Satellites: Communications satellites use transponders to receive signals from Earth, change their frequency, and retransmit them back.
• Everyday Technology: Used in passive keyless entry systems for cars, automated toll collection (e.g., E-ZPass), and RFID tags for tracking race participants.
• Fiber Optics: Transponders convert short-range optical signals into long-range signals for network communication. 

Common Transponder Types & Modes

• Mode Alpha (A): Transmits a 4-digit identification code.
• Mode Charlie (C): Transmits identification and pressure altitude.
• Mode Sierra (S): Offers advanced capabilities, transmitting identification, altitude, speed, and registration details. 

Differences from Other Devices

• Transponder vs. Transceiver: A transponder sends a signal only when it receives one, whereas a transceiver is a transmitter and receiver combined, used for continuous communication.
• Active vs. Passive: Active transponders need power to send a signal, while passive transponders (like RFID tags) are powered by the incoming signal.