ECE :: Communication Systems
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Which of the following stage is not present in AM receiver as compared to FM receiver?
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The function of duplexer in a RADAR is
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If e = 10 cos (2p x 108t + 20 cos 2p 103t). The bandwidth is
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In FM, as the modulating frequency decreases and the modulating voltage amplitude
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Modulation system used for video-modulation in television broadcast is
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The highest modulation frequencies typically used in FM broadcast is
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The intermediate frequency of a superheterodyne receiver is 450 kHz. If it is tuned to 1200 kHz, the image frequency will be
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Which of the following statement regarding single-sideband (SSB) transmission is not correct?
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A.
In such transmission only or sideband is transmitted, leaving of the other sideband and the carrier
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B.
It has gained general acceptance of use in home-entertainment equipment
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C.
It is generally reserved for point-to-point communication
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D.
The amount of power and bandwidth necessary to be transmitted for a given amount of information are appreciable reduced
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