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What is communication satellite ?...

What is communication satellite ?

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Communication satellite : It is basically a microwave relay station placed in geostationary orbit around the earth. Such a satellite is stationary relative to earth and always be at the same position with respect to the ground.
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BETTER CHOICE PUBLICATION-PRINCIPLES OF COMMUNICATION -SHORT ANSWER TYPE QUESTIONS
  1. Explain space wave propagation of radio waves.

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  2. Draw a labelled block diagram of a basic communication system.

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  3. What is communication satellite ?

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  4. What is transducer ? Give one example.

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  5. Briefly explain the term sky wave propagation.

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  6. What is the need for modulation ?

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  7. What is modulation ?

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  8. What is ozone layer ? Give its importance.

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

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

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  11. What is the need for modulation ?

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  12. Why audio signals cannotbe transmitted directly into space ?

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

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  14. What are the limitations of amplitude modulation ?

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

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

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

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

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

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

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