Radio communicationsQuestion 794 of 934

At an airport without an operating control tower, which frequency is normally used to turn on the pilot-controlled lights?

  1. The CTAF
  2. The ATIS frequency
  3. The emergency frequency 121.5 MHz
  4. The approach control frequency
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Correct answer: The CTAF

The CTAF is used whenever possible, so pilots keep one frequency and a continuous listening watch.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 4-1-10 IFR Approaches/Ground Vehicle Operations, page 211

Practice radio communications

Questions last reviewed: 18 October 2026