Modulation is the act of translating some low-frequency or baseband signal (voice, music, and data) to a higher frequency. Why do we modulate signals? There are at least two reasons: to allow the ...

The radio spectrum is a wide and varied thing. FM—frequency modulation—is the most popular, and you’d think that it would be ...

A look at the simplest FM demodulation technique. It doesn’t give the lowest possible output distortion, it doesn’t reject amplitude distortion effects, but it is simple and can be used at virtually ...

If you are using a portable FM radio it is likely to have a built-in telescopic aerial. Extend the aerial as much as possible ...