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Radio communicationsQuestion 811 of 934

How should a pilot report altitude on initial contact with an ATC facility?

  1. Rounded to the nearest thousand feet above mean sea level
  2. Exact altitude to the nearest hundred foot increment
  3. Height above ground level in feet
  4. The altitude planned for the next leg
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Correct answer: Exact altitude to the nearest hundred foot increment

Exact altitude reports give ATC data needed before it uses automatically reported altitude for separation.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 4-1-20 Transponder and ADS-B Out Operation, page 223

Practice radio communications

Questions last reviewed: 18 October 2026