What measurement does the VOR use to determine an aircraft's azimuth relative to the station?

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Multiple Choice

What measurement does the VOR use to determine an aircraft's azimuth relative to the station?

VOR determines your direction by comparing the phase of two signals from the station: a reference signal that is the same in all directions and a directional signal whose phase shifts with bearing. The receiver measures the phase difference between these two signals, and that phase difference maps directly to the azimuth from the station to the aircraft. This is how the issued bearing (the radial) is derived and displayed to you. Time differences, amplitude differences, or frequency differences aren’t used to determine azimuth in a VOR.

VOR determines your direction by comparing the phase of two signals from the station: a reference signal that is the same in all directions and a directional signal whose phase shifts with bearing. The receiver measures the phase difference between these two signals, and that phase difference maps directly to the azimuth from the station to the aircraft. This is how the issued bearing (the radial) is derived and displayed to you.

Time differences, amplitude differences, or frequency differences aren’t used to determine azimuth in a VOR.

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