See Our New JEE Book on Amazon

Frequency Modulation

By

Frequency modulation (FM) is a method of modulating a radio frequency carrier wave by varying its frequency in response to a modulating signal.

frequency

In FM, the modulating signal is typically a low-frequency audio signal. The audio signal is used to vary the frequency of the carrier wave in a way that reflects the information being carried.

In contrast to amplitude modulation (AM), FM is less susceptible to noise and interference, and can provide higher-quality sound for a given signal-to-noise ratio. However, it also requires a wider bandwidth than AM, which can limit its usefulness in certain applications.

Related

  1. Sky and space wave propagation
  2. Amplitude modulation
  3. Communication Bandwidth
JEE Physics Solved Problems in Mechanics