26. The disadvantage of FM over AM is that A. High output power is needed B. High modulating power is needed C. Noise is very high for high frequency D. Large bandwidth is required Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
27. VSB modulation is preferred in TV because A. It reduces the bandwidth requirement to half B. It avoids phase distortion at low frequencies C. It results in better reception D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
28. Which one of the following is analog? A. PCM B. PWM C. Delta modulation D. Differential PCM Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
29. As per Shannon-Hartley theorem, a noise less Gaussian channel has A. Zero capacity B. Infinite capacity C. Small capacity D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
30. In a TV receiver antenna the length of reflector rod A. Is the same as that of dipole B. Is less than that of dipole C. Is more than that of dipole D. May be equal, more or less than that of dipole Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
