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Briefly explain the term sky wave propag...

Briefly explain the term sky wave propagation.

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BETTER CHOICE PUBLICATION-PRINCIPLES OF COMMUNICATION -SHORT ANSWER TYPE QUESTIONS
  1. What is communication satellite ?

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  2. What is transducer ? Give one example.

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  3. Briefly explain the term sky wave propagation.

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  4. What is the need for modulation ?

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  5. What is modulation ?

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  6. What is ozone layer ? Give its importance.

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  7. Answer the following questions The small ozone layer on top of the s...

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  8. What is space wave propagation ? Why is it limited upto small distance...

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  9. What is the need for modulation ?

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  10. Why audio signals cannotbe transmitted directly into space ?

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  11. Explain basic elements of communication system with the help of block ...

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  12. What are the limitations of amplitude modulation ?

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  13. Give one difference between point to point mode of communication and b...

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  14. Why is ground wave propagation not suitable for high frequency ?

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  15. Explain the term ground waves propagation of radio-waves.

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  16. Explain why sky wave propagation is not possible for high frequency ra...

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  17. What is space wave propagation ? Give one example of communication sys...

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  18. Write any two factors, which justify the need of modulation for the tr...

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  19. Explain space wave propagation.

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  20. What do you mean by medium wave band and short wave band ?

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