Question

Which type of direction finders takes bearings on airborne transmitters and advice the aircraft of its bearing from the ground station?

(a) Ground based

(b) Airborne direction finders

(c) Homing adapters

(d) Homing beacon

This question was posed to me in unit test.

The doubt is from Point Source Radio Systems topic in portion Terrestrial Radio Navigation System of Avionics

Answer 1

Correct option is (a) Ground based

To elaborate: Ground based direction finders take bearings on airborne transmitters and advice the aircraft of its bearing from the ground station. Such stations can afford the necessary complex equipment, but the operation is cumbersome and time consuming, and requires airborne transmitter and communication link.