Frequency Modulation (FM)

Frequency modulation (FM) is a type of angle modulation in which the frequency of a sinusoidal carrier wave deviates from a centre frequency by an amount proportional to the instantaneous value of the message signal.

  • In FM, the center frequency is the carrier frequency.
  • Modulation refers to converting the information signal to a suitable form of transmission. In communication system, the message or the information signal is converted to the electronic signal, which is transmitted through the communication channel to the receiver.
  • The receiver performs the demodulation process and converts the electronic signal back into its original ....
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