Frequency Modulation, FM. When the audio signal is modulated onto the radio frequency carrier , the new radio frequency signal moves up and down in frequency. The amount by which the signal moves up and down is important. It is known as the deviation and is normally quoted as the number of kilohertz deviation.
Read moreWhat is meant by carrier frequency?
Carrier frequency is defined as the frequency of a carrier wave, measured in cycles per second, or Hertz, that is modulated to transmit signals .
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