Chapter 4 VOR Flashcards
What is the frequency range for a VOR?
108-117.95MHz
What is the frequency for a terminal VOR?
108-112MHz
What is the frequency range for a conventional VOR?
112-117.95MHz
What are VOR stations aligned to?
Magnetic north
Where is variation measured with a VOR?
At the VOR
What is the frequency separation of a VOR?
50Hz
On what frequency is the 3 letter morse code identifier transmitted on?
1020Hz
What is a CVOR used for?
En-route navigation
What type of modulation is used on each phase of a CVOR and what is the signal direction?
Reference = FM
Variable = AM
Signal direction = CW
What type of modulation is used on each phase of a DVOR and what is the signal direction?
Reference = AM
Variable = FM
Signal direction = ACW
Which is more accurate, a DVOR or a CVOR?
DVOR
What is a DVOR less susceptible to?
Citing errors
What is a TVOR used?
Instrument approaches
What is a BVOR used for?
Broadcasting voice (e.g. ATIS)
What is a VOT?
Used for pre flight testing of equipment
How does a VOR determine the radial?
Measures angular phase difference
What does the VOR self check consist of?
- bearing is accurate to +/- 1 degree
- total strength is above 85% of max power
- ensures the monitor is working
What will happen if the VOR fails the self check?
Removal of ident or the shutdown of the VOR
What is the formula for finding the radius of the VOR cone of confusion?
Radius (nm) = Height (nm) * 1.2
What aircraft equipment is required for VOR usage?
Antenna, receiver, control panel and indicator
