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Consumer Electronics by S. P. Bali

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Descriptive Questions

  1. Briefly explain the analog methods of modulation.
  2. Differentiate between AM and FM.
  3. Explain the relative advantages and disadvantages of FM over AM.
  4. With the help of a suitable sketch explain the frequency spectrum of an amplitude modulated wave for single-frequency modulating signal.
  5. What are the digital methods of modulation? Explain briefly.
  6. Differentiate between ASK, FSK, and PSK.
  7. What are the pulse methods of modulation? Explain briefly.
  8. Describe the process of quantization of a signal.
  9. Why multiplexing is required? How is it achieved?
  10. Differentiate between SDM and TDM.
  11. Explain the difference between concentration and multiplexing.
  12. How pulse regeneration is achieved?

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