Pre-emphasis is:
A) increasing the relative strength of low-frequency components before being fed into the modulator of an FM transmitter.
B) decreasing the relative strength of high-frequency components at the output signal of an FM detector in an FM receiver
C) decreasing the relative strength of low-frequency components of the output signal of an FM detector in an FM receiver.
D) increasing the relative strength of high-frequency components before being fed into the modulator of an FM transmitter.

Question

Quizplus · Accepted Answer

Pre-emphasis refers to the process of increasing the amplitude of the high-frequency components of a signal before it is modulated and transmitted. This is done to improve the signal-to-noise ratio for these frequencies.

Pre-Emphasis Is