VOR

Question 1

OPERATION FREQUENCY

Answer 1

~108.00- 117.975 MH
This overlaps wiht the instrmetn landing system ILS which utilises frequency with ODD decimal up to 111.95MHz

Question 2

Works on the principle of phase difference between two transmission

Answer 2

~refernce phase (RP)
~varaible phase(VP)

Answer 3

Phase diffence :is used to determine radial

Angular difference between corresponding points of two cycles of equal wavelength ,measures in degree

Answer 4

~on 90 radial,the reference phase leads the varaible phase by 90
~on 270 radila,the refence phase lags the variable

Question 5

Conventional vor

Answer 5

~clockwise rotaion
~RP >freqwuency modulated
~vp» amplitude modutlated

Question 6

Doppler vor

Answer 6

~anticlockwise rotation
~rp :amplitude modulated
~vp: frequency modu

Question 7

Types of vor

Answer 7

~conventional VOR(CVOR) first generation with a rotating antenna
~doppler VOR (DVOR): second genration with a fixed antenna which utilises
~en route
~terminal
~test vor (VOT) emits a signal used to test vor indicators

Question 8

Vors emit an A9W singal

Answer 9

Failure of the vor station to remain within limits may cause

~removoal of ident
~removal of navigation from the carrier wave
~termination of transmission
~

Answer 10

Rmi
Obi/cdi
Hsi