* Satellite communications
* Mobile communications
* Wireless microphones
* Telemetry
* Remote control systems
FM is a method of encoding information in a carrier wave by varying the frequency of the wave. The frequency of the wave is varied in proportion to the amplitude of the information signal. This means that the higher the amplitude of the information signal, the higher the frequency of the carrier wave.
FM has several advantages over AM. One advantage is that FM signals are less susceptible to noise and interference. This is because noise and interference tend to cause the amplitude of a wave to vary, but they do not affect the frequency of a wave. Another advantage of FM is that it can transmit a wider range of frequencies than AM. This means that FM can be used to transmit higher-quality audio signals.
FM is a versatile and widely used modulation technique. It is used in a variety of applications, from radio broadcasting to satellite communications.