The RF bandwidth of AM is ____________ the maximum frequency contained in the modulating message signal.(a) Equal(b) Two times(c) Four times(d) Ten timesThis question was addressed to me in class test.Question is from Amplitude Modulation in section Modulation Techniques for Mobile Radio of Wireless/Mobile

The RF bandwidth of AM is ____________ the maximum frequency contained

1.	The RF bandwidth of AM is ____________ the maximum frequency contained in the modulating message signal.(a) Equal(b) Two times(c) Four times(d) Ten timesThis question was addressed to me in class test.Question is from Amplitude Modulation in section Modulation Techniques for Mobile Radio of Wireless/Mobile
Answer» CORRECT answer is (b) TWO times Explanation: The RF bandwidth of an AM signal is equal to BAM=2fm. It is double the maximum FREQUENCY contained in the modulating message signal. AM SPECTRUM CONSISTS of an impulse at the carrier frequency and two sidebands which replicate the message spectrum.

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