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Modulation is the process of superposing...

Modulation is the process of superposing

A

low frequency audio signal of high frequency waves

B

low frequency radio signal on low frequency audio waves

C

high frequency ratio signal on low frequency audio signal

D

low fequency radio signal on high frequency audio waves.

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Modulatation is the process of superposing the low frequency audio signal on high frequency wave.
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PRADEEP-COMMUNICATION SYSTEMS-Exercise
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  2. In amplitude modulation, the modulation index mu, is kept less than or...

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  3. Modulation is the process of superposing

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  4. A carrier wave is modulated by n number of sine waves with modulation ...

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  5. Which of the following is not transducer?

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  6. For what value of m(a) will the total power per cycle be maximum in th...

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  7. In amplitude modulation, sinusoidal carrier frequency used is denoted ...

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  8. A dilode AM detector with the output circuit consisting of R=1 kOmega ...

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  9. In an amplitude modulation with modulation index 0.5 the ratio of the ...

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  10. A signal wave of frequency 12 kHz is modulated with a carrier wave of ...

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  11. Which of the following device is full duplex?

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  12. A signal of 5 kHz frequency is amplitude modulated on a carrier wave o...

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  13. A radiostation has two channels. One is AM at 1020 kHz and the other F...

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  14. Fig. 10 (CF).1 is the circuit diagram of an AM demondulator. For good ...

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  15. If both the length of an antenna and the wavelength of the signal to b...

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  16. Which of the following four alternatives is not correct, We need modul...

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  17. Refractive index of ionosphere is:

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  18. Greenhouse 'warming' is caused by an atomosphere which is

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  19. Beyond which frequency, the ionosphere bends any incidne electrognetic...

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