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difference between AM and FM

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difference between AM and FM

    • Posted by Tech World 6 years, 10 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Gaurav Seth 6 years, 10 months ago

    Amplitude Modulation (AM) Frequency Modulation (FM)
    First successful audio transmission was carried out in mid-1870s Developed in 1930 by Edwin Armstrong, in the United States
    The radio wave is called as a carrier wave and the frequency and phase remain same The radio wave is called a carrier wave, but the amplitude and phase remain same.
    Has poor sound quality, but can transmit longer distance. Has higher bandwidth with better sound quality
    The frequency range of AM radio varies from 535 to 1705 KHz The frequency range of FM is 88 to 108 MHz in higher spectrum
    More susceptible to noise Less susceptible to noise.

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