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AhaBulb: Stuff Everyone Should Know · ahabulb.com/ifr-vor-zone-of-confusion

Why does a VOR needle swing wildly when you fly right over the station?

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  1. The station switches frequencies overhead
  2. The DME and VOR signals cancel each other out
  3. There is no adequate signal directly above the station

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References

  1. FAA Instrument Flying Handbook (FAA-H-8083-15B) www.faa.gov/sites/faa.gov/files/pilots/FAA-H-8083-15B.pdf Checked 2026-10-11.

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