ECE :: Communication Systems
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Some features of RF stage in good radio receivers is
- It increases sensitivity by providing amplification to RF signal
- It eliminates image frequency interference
- It increases selectivity
- It reduces noise level
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During amplitude modulation, the phase angle of the modulating voltage changes by
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The image frequency of a superheterodyne receiver is
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Which of the following is most likely to be found in an SSB transmitter?
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Which of the following statement is correct?
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Which of the following is true as regards telephone systems?
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SSB can be generated by
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Which one of the following cannot be used to remove the unwanted sideband in SSB?
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For FM, which of the following statement is not true?
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A.
A larger facility carrying a larger load operates less efficiently than a smaller capacity
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B.
A larger facility carrying a lesser load operates more efficiently than a smaller capacity
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C.
A larger facility carrying a larger load operates more efficiently than a smaller capacity
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D.
A smaller capacity carrying a larger load operates more efficiently than a larger capacity
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