Radio Amateur Quiz Canadian License

EN FR

Question A-005-006-006

What audio shaping network is added at an FM transmitter to attenuate the lower audio frequencies?

Correct Answer

A pre-emphasis network

Explanation

Actually, a pre-emphasis network BOOSTS higher audio frequencies, not attenuates lower ones. The complementary de-emphasis network in the receiver attenuates these higher frequencies along with noise. This question/answer seems to describe the inverse of pre-emphasis.

Warning: Generated by AI