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Which among the following is not an advantage of FM over AM?(a) modulating power required is less(b) low bandwidth is required(c) better noise immunity(d) better signal to noise ratioThis question was posed to me in a national level competition.The origin of the question is Disadvantages of Filter Method topic in division SSB Modulation of Analog Communications

Answer»

The correct CHOICE is (b) low bandwidth is required

Easiest EXPLANATION: ADVANTAGES of FM over AM are LESS prone to noise, low modulating power required and such like. HOWEVER, disadvantage of FM is that large bandwidth is required.



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