Question

Using an audio tone to encode angles is an efficient method.

(a) True

(b) False

I had been asked this question in my homework.

My question is based upon Microwave Landing System topic in section Landing Systems & Air-Traffic Management of Avionics

Answer 1

Right answer is (b) False

Explanation: Early MLS with mechanical scanned array used a varying audio tone to encode the pointing angle on the scanning beam pattern. The FAA adopted the time interval between successive passages of the unmodulated beam as an efficient means of angle encoding.