A signal amplifier should only be used as a last resort ... Some can also combine television and FM radio signals. If you are experiencing pixellation or picture break up, it may be that your ...

Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are slightly ... filter cleans up the signal, and a cheap audio amplifier reproduces the ...

The sound enters the microphone, where it is converted into a weak electrical signal. Amplifier The weak signal from the microphone is amplified. Notice how the incoming signal is flatter than the ...