VHF Omnidirectional Range (VOR)

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VHFVery High Frequency (30-300 MHz) Omnidirectional Range (VOR)
VORthmbnew.png
Frequencies 108 MHzMegaHertz (MHz) 10^6 Hz108,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
108,000 kHzKiloHertz (kHz) 10^3 Hz
,117.95 MHzMegaHertz (MHz) 10^6 Hz117,950,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
117,950 kHzKiloHertz (kHz) 10^3 Hz
108,000 kHzKiloHertz (kHz) 10^3 Hz
108 MHzMegaHertz (MHz) 10^6 Hz
117,950 kHzKiloHertz (kHz) 10^3 Hz
117.95 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 108 MHzMegaHertz (MHz) 10^6 Hz108,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
108,000 kHzKiloHertz (kHz) 10^3 Hz
- 117.95 MHzMegaHertz (MHz) 10^6 Hz117,950,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
117,950 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation AMAmplitude Modulation,FMFrequency Modulation
ACFAutoCorrelation Function
Bandwidth 21kHz21,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.021 MHzMegaHertz (MHz) 10^6 Hz
21 kHzKiloHertz (kHz) 10^3 Hz
0.021 MHzMegaHertz (MHz) 10^6 Hz
21 kHzKiloHertz (kHz) 10^3 Hz
0.021 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description A type of radio navigation system used by aircraft. It is distinctive in that the center frequency is flanked by two FMFrequency Modulation waves.
I/Q Raw Recording
Audio Sample

A type of radio navigation system used by aircraft. It is distinctive in that the center frequency is flanked by two FMFrequency Modulation waves. The center carrier may have subcarriers of AMAmplitude Modulation voice, morse code identifier, or both.

Frequencies[edit]

VORs are assigned radio channels between 108.0 MHzMegaHertz (MHz) 10^6 Hz and 117.95 MHzMegaHertz (MHz) 10^6 Hz (with 50 kHzKiloHertz (kHz) 10^3 Hz spacing); this is in the Very High Frequency (VHFVery High Frequency (30-300 MHz)) range. The first 4 MHzMegaHertz (MHz) 10^6 Hz is shared with the Instrument landing system (ILS) band. To leave channels for ILS, in the range 108.0 to 111.95 MHzMegaHertz (MHz) 10^6 Hz, the 100 kHzKiloHertz (kHz) 10^3 Hz digit is always even, so 108.00, 108.05, 108.20, 108.25, and so on are VOR frequencies but 108.10, 108.15, 108.30, 108.35 and so on, are reserved for ILS in the US.

IQ Sample[edit]

One Minute IQ File

Video Examples[edit]

Additional Links[edit]

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