Question

What type of transmission is used in Omega system?

(a) Amplitude modulated wave

(b) Continuous wave

(c) Phase modulated wave

(d) Frequency modulated wave

This question was addressed to me in my homework.

This key question is from Hyperbolic Radio Systems topic in section Terrestrial Radio Navigation System of Avionics

Answer 1

Correct answer is (b) Continuous wave

For explanation I would say: At each Omega station, continuous wave signals on four common frequencies and one station unique frequency. The signal frequencies are time shared among the stations so that a given frequency is transmitted by only one station at any given time.