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CHETANA PUBLICATION-ELECTROMAGNETIC WAVES AND COMMUNICATON SYSTEM-EXERCISE
- What is signal? Explain different types of signals.
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- Explain the following terms Transducer
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- Explain the following terms Amplication and Repeater.
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- Define the following terms Attenuation
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- Define the following terms Range
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- Define the following term : Modulation
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- Define the following terms Demodulation and Carrier wave.
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- What is meant by noise?
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- What is meant by bandwidth?
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- Give reasons for the following. Long distance radio broadcast uses sho...
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- Give reason for the following, satellite are used for long distance TV...
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- How does the effective power radiated by an antenna vary with waveleng...
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- Why should broadcasting programs use different frequencies?
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- Define modulation
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- What is demodulation?
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- Explain why is modulation needed.
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- State the different types of modulation.
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- What type of modulation is required for television broadcast?
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- Why does amplitude modulation give noisy reception?
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- Why are high frequency carrier waves used for transmission of audio si...
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