What does crackly radio interference mean?

Answer 1

Crackly radio interference is a phrase that names a type of sound that happens when the "normal" signal coming through a receiver such as a CB radio, a car radio, a police radio or even a TV set is interrupted repeatedly or steadily. This causes a "choppy" signal to be processed by the receiver which then emits a very unpleasant crackling sound. A steady crackling sound is less annoying than a random patterned one. A steady sound of that type is called "white noise". White noise is a category of sound that in the presence of the human ear tends to drown out other sound. Examples of white noise are a running shower, a flushing toilet, a water fall, rain, a fan, a radio set between frequencies, wind blowing. Ever notice when people talk in the wind they yell. The wind creates a type of noise that drowns out your voice.