What does a transponder with Mode C provide?

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Study for the General Aircraft United Test. Practice with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

What does a transponder with Mode C provide?

Explanation:
Mode C adds altitude information to the transponder's reply. When ATC’s radar interrogates, the transponder not only provides the four-digit squawk code but also a 12‑bit altitude word that represents the aircraft’s pressure altitude (typically with 100‑foot resolution). This gives ATC precise vertical position to help maintain safe separation. It does not handle voice communication, does not increase engine power, and does not display weather radar.

Mode C adds altitude information to the transponder's reply. When ATC’s radar interrogates, the transponder not only provides the four-digit squawk code but also a 12‑bit altitude word that represents the aircraft’s pressure altitude (typically with 100‑foot resolution). This gives ATC precise vertical position to help maintain safe separation. It does not handle voice communication, does not increase engine power, and does not display weather radar.

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