Question

Voice signals cannot be directly transmitted by radio.

(a) True

(b) False

I got this question during an online interview.

This key question is from Modulation and Multiplexing topic in portion Introduction to Electronic Communication of Avionics

Answer 1

Right choice is (a) True

Explanation: Baseband signals are, in many cases, incompatible with the medium. Theoretically, it is possible to transmit voice signals directly by radio, but due to the low frequency of these waves the antenna size required form transmission is too big.