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Modulation is required to (a) distingu...

Modulation is required to
(a) distinguish different transmissions
(b) ensure that the information may be trans mitted over long distances
© allow the information accessible for different people

A

a & b are true

B

b & c are true

C

c & a are true

D

a, b & c are true

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-COMMUNICATION SYSTEMS -Exercise - IA (Modulation)
  1. The process of translating the information conta-ined by the low base ...

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  2. During the process of modulation the RF wave is called

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  3. Modulation is required to (a) distinguish different transmissions ...

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  4. In Amplitude modulation

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  5. The physical quantities of the wave used for modulation

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  6. Amplitude modulation is used for broad casting because

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  7. Draw backs of Amplitude modulation

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  8. Purpose of oscillator in the AM transmitter

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  9. In frequency modulation

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  10. In a communication system, noise is most likely to affect the signal

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  11. The difference between phase and frequency modulation

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  12. While tuning in a certain broad cast station with a receiver, we are a...

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  13. Digitals signals (i) do not provide a continous set of values (ii)...

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  14. In T.V. broadcasting both picture and sound are transmitted simultaneo...

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  15. The process of separating radio signal from the modulated wave is know...

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  16. The sound waves after being converted into electrical waves are not tr...

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  17. In amplitude modulation, the total modulation index should not exceed ...

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  18. Modem is device which performs

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  19. Audio signal cannot be transmitted, because

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  20. Of the following which is perferred modulation scheme for digital comm...

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