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Communication Systems

Communication Systems
In practical commercial FM system, channel bandwidth is

108 MHz
88 MHz
150 kHz
100 kHz

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Communication Systems
A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be

Statistically independent
Orthogonal
Correlated
Uncorrelated

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Communication Systems
Commercial Frequency deviation of FM is

65 kHz
80 kHz
75 kHz
70 kHz

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Communication Systems
A buffer amplifier is

A cathode follower stage
A double-tuned amplifier
A high gain D.C. amplifier
None of these

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Communication Systems
If output power of a radio receiver is doubled, its volume is increased by __________ dB.

2
-3
3
1

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Communication Systems
SSB can be generated by

All of these
Good attenuation characteristics
Filter method
Phase cancellation method

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