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Subelement K

Aircraft

Section 69

VHF Omnidirectional Range (VOR)

All directions associated with a VOR station are related to:

  • Correct Answer
    Magnetic north.
  • North pole.
  • North star.
  • None of these.

All directions associated with a VOR station are related to:

Magnetic north.

The VOR, or the very high frequency omnidirectional range, ground station transmits amplitude and frequency modulated signals, at 30 Hz. Since the phases are different between those two signals, with only one signal indicating direction, it is the phase difference shows direction by calculating the difference between the VOR station and the magnetic north.

Please see Wikipedia's article VHF omnidirectional range

For well-illustrated navigation process, please see WikiHow site for the How to Navigate Using a VOR, step by step.

Also, please see FAA pdf document Navigation, about how to orient and determine direction.


Please see Wikipedia's article on Distance measuring equipment

See Sky Brary site for the article on Distance Measuring Equipment (DME)

For good illustration, please see the AOPA site, for the article on HOW IT WORKS: DISTANCE MEASURING EQUIPMENT

For concise but in-depth info, please see CFnotebook site for the article Distance Measuring Equipment

For complete reference, please see the FAA page for Section 1. Navigation Aids

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The rate that the transmitted VOR variable signal rotates is equivalent to how many revolutions per second?

  • 60
  • Correct Answer
    30
  • 2400
  • 1800

The rate that the transmitted VOR variable signal rotates is equivalent to how many revolutions per second?

30

The VHF Omnidirectional Range (VOR) transmits one radio wave in all directions (thus, omnidirectional), while the second signal is sent as the antenna rotates.

The clockwise rotating radio wave transmission does so at 30 times (around 360° revolutions) per second.

The omnidirectional radio wave gets stronger and weaker (expands/contracts like a balloon) 30 times in one second.

Please see Wikipedia's article on VHF omnidirectional range

For more information, please see Learn To Fly Blog site for the article Navigation: VHF Omnidirectional Range (VOR)

For a free online VOR and ADF simulator, please see Fergonez Net site for the Fergo IRF Simulator.

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What is the frequency range of the ground-based Very-high-frequency Omnidirectional Range (VOR) stations used for aircraft navigation?

  • 108.00 kHz to 117.95 kHz.
  • 329.15 MHz to 335.00 MHz.
  • 329.15 kHz to 335.00 kHz.
  • Correct Answer
    108.00 MHz to 117.95 MHz.

What is the frequency range of the ground-based Very-high-frequency Omnidirectional Range (VOR) stations used for aircraft navigation?

108.00 MHz to 117.95 MHz.

From wp2ahg:

The question asks about a Very High Frequency (VHF) range.
Answer D is the only VHF frequency range (which is 30-300 MHz)

Answer A (108.00-117.95 kHz) is HF.
Answer B (329.15-335.00 MHz) is UHF.
Answer C (329.15-335.00 kHz) is HF.


The VHF Omnidirectional Range (VOR) transmits one radio wave in all directions (thus, omnidirectional), while the second signal is sent as the antenna rotates.

Please see Wikipedia's article on VHF omnidirectional range

For more information, please see Learn To Fly Blog site for the article Navigation: VHF Omnidirectional Range (VOR)

For a free online VOR and ADF simulator, please see Fergonez Net site for the Fergo IRF Simulator.

Last edited by markadlerdallas. Register to edit

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Lines drawn from the VOR station in a particular magnetic direction are:

  • Correct Answer
    Radials.
  • Quadrants.
  • Bearings.
  • Headings.

Lines drawn from the VOR station in a particular magnetic direction are:

Radials.

The VHF Omnidirectional Range (VOR) transmits one radio wave in all directions (thus, omnidirectional), while the second signal is sent as the antenna rotates.

Please see Wikipedia's article on VHF omnidirectional range

For more information, please see Learn To Fly Blog site for the article Navigation: VHF Omnidirectional Range (VOR)

For a free online VOR and ADF simulator, please see Fergonez Net site for the Fergo IRF Simulator.

Last edited by markadlerdallas. Register to edit

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The amplitude modulated variable phase signal and the frequency modulated reference phase signal of a Very-high-frequency Omnidirectional Range (VOR) station used for aircraft navigation are synchronized so that both signals are in phase with each other at ____________ of the VOR station.

  • 180 degrees South, true bearing position.
  • Correct Answer
    360 degrees North, magnetic bearing position.
  • 180 degrees South, magnetic bearing position.
  • 0 degrees North, true bearing position.

The amplitude modulated variable phase signal and the frequency modulated reference phase signal of a Very-high-frequency Omnidirectional Range (VOR) station used for aircraft navigation are synchronized so that both signals are in phase with each other at ____________ of the VOR station.

360 degrees North, magnetic bearing position.

The compass circle has 3600. Any direction between 00 and 3600 will be somewhat like an hour position on the clock, with 12 o'clock being either 00 or 3600.

By convention, the 00 or 3600 is the North, but MAGNETIC NORTH, not the geographic north, as in the wrong answer with the 00. Clever distinction.

Remember key words: MAGNETIC BEARING POSITION


Please see Wikipedia's article on Distance measuring equipment

See Sky Brary site for the article on Distance Measuring Equipment (DME)

For good illustration, please see the AOPA site, for the article on HOW IT WORKS: DISTANCE MEASURING EQUIPMENT

For concise but in-depth info, please see CFnotebook site for the article Distance Measuring Equipment

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What is the main underlying operating principle of the Very-high-frequency Omnidirectional Range (VOR) aircraft navigational system?

  • A definite amount of time is required to send and receive a radio signal.
  • The difference between the peak values of two DC voltages may be used to determine an aircraft’s altitude above a selected VOR station.
  • Correct Answer
    A phase difference between two AC voltages may be used to determine an aircraft’s azimuth position in relation to a selected VOR station.
  • A phase difference between two AC voltages may be used to determine an aircraft’s distance from a selected VOR station.

What is the main underlying operating principle of the Very-high-frequency Omnidirectional Range (VOR) aircraft navigational system?

A phase difference between two AC voltages may be used to determine an aircraft’s azimuth position in relation to a selected VOR station.

The VOR ground station transmits amplitude and frequency modulated signals, at 30 Hz. Since the phases are different between those two signals, with only one signal indicating direction, it is the phase difference shows direction by calculating the difference between the VOR station and the magnetic north.

Please see Wikipedia's article VHF omnidirectional range

For well-illustrated navigation process, please see WikiHow site for the How to Navigate Using a VOR, step by step.

Also, please see FAA pdf document Navigation, about how to orient and determine direction.


Please see Wikipedia's article on Distance measuring equipment

See Sky Brary site for the article on Distance Measuring Equipment (DME)

For good illustration, please see the AOPA site, for the article on HOW IT WORKS: DISTANCE MEASURING EQUIPMENT

For concise but in-depth info, please see CFnotebook site for the article Distance Measuring Equipment

For complete reference, please see the FAA page for Section 1. Navigation Aids

Last edited by markadlerdallas. Register to edit

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