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Why is modulation necessary?...

Why is modulation necessary?

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R G PUBLICATION-COMMUNICATION SYSTEM-EXERCISE
  1. Express wavelength of matter wave as lambda = h/sqrt(2mEk)

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  2. What is the function of cladding in a typical optical fibre?

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  3. Why is modulation necessary?

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  4. What is modulation index?

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  5. What is digital communication? Mention two advantages of digital commu...

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  6. Compare AM with FM wave.

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  7. In a communication System, what do you mean by Transducer ?

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  8. In a communication System, what do you mean by Signal?

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  9. The transmitting antenna at the top of a tower has a height of 32m. T...

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  10. Draw block diagram of a generalized communication system.

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  11. For an AM wave, the maximum amplitude is found to be 10V while the min...

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  12. What are the different components of a TV signal? Write down the bandw...

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  13. What are the different transmission media for communication?

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  14. How will you detect amplitude modulated waves? Explain with block diag...

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  15. Disucss briefly the three modes of propagation of electromagnetic wave...

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  16. Draw block diagram of a generalized communication system.

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  17. Define the term noise used in electronic communication

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  18. Give a short description of the following mode of propagation of an el...

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  19. Give a short description of the following mode of propagation of an el...

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  20. Draw the block diagram iof detector for AM signal with waveforms at di...

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