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Draw a labelled block diagram of a radio...

Draw a labelled block diagram of a radio transmitter.

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BINA LIBRARY-COMMUNICATION SYSTEM -EXERCISE
  1. Draw block diagram of a generalized communication system.

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  2. Compare AM with FM wave.

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  3. Draw a labelled block diagram of a radio transmitter.

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  4. What are the different transmission media for communication?

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  5. Define the term noise used in electronic communication

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

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  7. Why is modulation necessary?

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  8. What is amplitude modulation? Explain with diagram.

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  9. What sign (+ve or-ve) is given to the focal length of a convex mirror?

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  10. For long distance radio broadeast, we use short wave only. Why?

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  11. Why satellites are used for long distance TV transmission.

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  12. in what respects radio waves and gamma rays are different ?

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  13. Why sky wave are not used in television signals.

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  14. expalin why Tv transmission are usually made high .

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  15. why high frequency carrier waves are employed for transmission ?

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  16. why is short wave communication over long distance not possible by sur...

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  17. A radio can turn to any station in 7.5HZ TO 12MZband . What is the cor...

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  18. The maximum peak volatage of an AM wave is 20 mV . If the modulating i...

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  19. Find the length of a dipole antenna at frequency 10KHZ.

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  20. what should be the height of a transmitting antenna if TV telecast is ...

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