EC8394 Question Paper Analog and Digital Communication
EC8394 Question Paper Analog and Digital Communication Regulation 2017 Anna University free download. Previous Year Analog and Digital Communication Question Paper EC8394 pdf free download.
Previous Year EC8394 Question Paper Analog and Digital Communication:
14. Write the relation between carrier power and side band power of an AM-DSBFC signal. EC8394 Question Paper Analog and Digital Communication
15. In FM as the modulation index increases the required bandwidth also increases. Why?
16. What is capture effect in FM receivers? [Ans: Ability of FM to diminish the effects of
interfering signal is called capture effect.]
17. Distinguish between narrow band FM and wideband FM.
18. Draw the frequency spectrum and mention the bandwidth of AM signal.
19. Define amplitude modulation.
20. What is meant by RF?
21. What are the inputs to an amplitude modulator?
22. In an AM communications system, define modulating signal, carrier, modulated wave and
AM envelope EC8394 Question Paper Analog and Digital Communication
23. Describe the upper and lower sidebands and upper, lower side frequencies.
24. What is the highest modulation coefficient and percent modulation possible with a
conventional AM system without causing excessive distortion?
25. For 100% modulation what is the relationship between the voltage amplitudes of the side
frequencies and the carrier?
26. What effect does modulation have on the amplitude of the carrier component of the
modulated signal spectrum?
27. What does AM-DSBFC stand for? EC8394 Question Paper Analog and Digital Communication
28. What is the predominant advantage and disadvantage of AM DSBFC
| Subject name | Analog and Digital Communication |
| Semester | 3 |
| Subject Code | EC8394 |
| Regulation | 2017 regulation |
EC8394 Question Paper Analog and Digital Communication Click Here To Download
EC8394 Syllabus Analog and Digital Communication
EC8394 Notes Analog and Digital Communication
EC8394 Important Questions Analog and Digital Communication