Question

Which among the following is used to determine the position of an aircraft using very high frequency omnidirectional range (VOR)?

(a) Round trip time of a radial from a single VOR station

(b) Intersection of radials from a single VOR station in different directions

(c) Intersection of radials from a single VOR station with a delay between the signals

(d) Intersection of radials from two different VOR stations

I got this question in a national level competition.

I would like to ask this question from Next Generation Wireless Network topic in chapter Next Generation Wireless Network of Cognitive Radio

Answer 1

Right answer is (d) Intersection of radials from two different VOR stations

For explanation I would say: Line of position in very high frequency omnidirectional range is called the radial. The line of position consists of a highly directional signal sent by the VOR ground station using a phased antenna array and a reference signal in phase with the directional antenna. The intersection of radials from two different VOR stations is used to determine the position of an aircraft.