Question

22. The level of phase deviation depends on
a. message amplitude
b. message frequency​

Answer 1

Answer:

Explanation:answer a :- Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied as in frequency modulation, or its phase, as in phase modulation.

B :- In advertising, the effective frequency is the number of times a person must be exposed to an advertising message before a response is made and before exposure is considered wasteful. The subject on effective frequency is quite controversial. Many people have their own definition on what this phrase means.