Chapter 4 VOR Flashcards

1
Q

What is the frequency range for a VOR?

A

108-117.95MHz

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2
Q

What is the frequency for a terminal VOR?

A

108-112MHz

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3
Q

What is the frequency range for a conventional VOR?

A

112-117.95MHz

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4
Q

What are VOR stations aligned to?

A

Magnetic north

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5
Q

Where is variation measured with a VOR?

A

At the VOR

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6
Q

What is the frequency separation of a VOR?

A

50Hz

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7
Q

On what frequency is the 3 letter morse code identifier transmitted on?

A

1020Hz

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8
Q

What is a CVOR used for?

A

En-route navigation

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9
Q

What type of modulation is used on each phase of a CVOR and what is the signal direction?

A

Reference = FM
Variable = AM
Signal direction = CW

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10
Q

What type of modulation is used on each phase of a DVOR and what is the signal direction?

A

Reference = AM
Variable = FM
Signal direction = ACW

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11
Q

Which is more accurate, a DVOR or a CVOR?

A

DVOR

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12
Q

What is a DVOR less susceptible to?

A

Citing errors

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13
Q

What is a TVOR used?

A

Instrument approaches

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14
Q

What is a BVOR used for?

A

Broadcasting voice (e.g. ATIS)

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15
Q

What is a VOT?

A

Used for pre flight testing of equipment

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16
Q

How does a VOR determine the radial?

A

Measures angular phase difference

17
Q

What does the VOR self check consist of?

A
  • bearing is accurate to +/- 1 degree
  • total strength is above 85% of max power
  • ensures the monitor is working
18
Q

What will happen if the VOR fails the self check?

A

Removal of ident or the shutdown of the VOR

19
Q

What is the formula for finding the radius of the VOR cone of confusion?

A

Radius (nm) = Height (nm) * 1.2

20
Q

What aircraft equipment is required for VOR usage?

A

Antenna, receiver, control panel and indicator