The difference between AM and FM radio is characterized by
A) the way demographics change according to daypart
B) the call letters they are assigned
C) audience profiles
D) the way in which the signals are transmitted
E) radio station formats

Question

Quizplus · Accepted Answer

The main difference between AM and FM radio is in the way their signals are transmitted. AM radio uses amplitude modulation, meaning the amplitude (strength) of the radio waves varies to encode information. FM radio uses frequency modulation, meaning the frequency (number of waves per second) of the radio waves varies to encode information. This difference in signal transmission affects the quality, range, and susceptibility to interference of the radio broadcast.

The Difference Between AM and FM Radio Is Characterized by