Signals in a transmission usually ________.
A) travel at a single frequency
B) spread over a range of frequencies
C) spread over the entire frequency distribution
D) spread over the entire service band

Question

Quizplus · Accepted Answer

Signals in a transmission usually spread over a range of frequencies, which is called the frequency spectrum. This is because a signal is not a pure sine wave but is made up of multiple frequencies, each with varying amplitudes. The range of frequencies over which a signal spreads depends on its bandwidth or the range of frequencies it occupies.

Signals in a Transmission Usually ________