Which of the following is a drawback of FM systems?(a) Burst noise(b) Susceptible to atmospheric noise(c) Wider frequency band(d) Poor performance in fadingI had been asked this question in an international level competition.My question is from Frequency Modulation Vs. Amplitude Modulation in division Modulation Techniques for Mobile Radio of Wireless/Mobile

Which of the following is a drawback of FM systems?(a) Burst noise(b)

1.	Which of the following is a drawback of FM systems?(a) Burst noise(b) Susceptible to atmospheric noise(c) Wider frequency band(d) Poor performance in fadingI had been asked this question in an international level competition.My question is from Frequency Modulation Vs. Amplitude Modulation in division Modulation Techniques for Mobile Radio of Wireless/Mobile
Answer» The correct answer is (c) Wider frequency BAND The best I can explain: FM systems have MANY ADVANTAGES over AM systems. They ALSO have certain disadvantages. FM systems require a wider frequency band in transmitting media in order to obtain the advantages of reduced noise and capture effect. It is generally several TIMES as large as that needed for AM.

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