NavigationQuestion 832 of 934

A pilot tunes a VOR and hears no coded identification. What does this alert the pilot to?

  1. The station is a terminal VOR with a reduced range of 25 miles
  2. The receiver has reached its calibration limit
  3. The station may be out of service and should not be used
  4. The station is transmitting only by voice
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Correct answer: The station may be out of service and should not be used

When the VOR is out for maintenance, the coded identification is removed to warn pilots.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 16: Navigation — Ground-Based Navigation, page 410

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Questions last reviewed: 18 October 2026