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NIKITA PUBLICATION-COMMUNICATION SYSTEMS-Multiple Choice Questions (Need for modulation)
- What is the carrier wave? Why high frequency carrier waves are employe...
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- The process of superimposing signal frequency (i.e. audio wave) on the...
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- The process by which some characteristics i.e. amplitude, phase or fre...
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- The device used for addition of high frequency carrier wave and inform...
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- The height of antenna used in communication is
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- The power radiated by linear antenna of length 'l' is proportional to ...
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- Broadcasting antennas are generally
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- An antenna behaves as resonant circuit only when its length is
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- An antenna is a device
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- Audio signal cannot be transmitted because
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- The process of changing some characteristic of a carrier wave in accor...
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- If a carrier wave of 1000 kHz is used to carry the signal, the length ...
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- The types of modulation which are possible are-
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- The need for doing modulation is
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- What type of modulation is employed in india for radio transmission
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- In modulation we
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- The information carrying capacity of carrier wave is directly related ...
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