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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 22
16.
FM has poor efficiency than
AM
AM-SC
PAM
PCM
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The number of spectral component when two sine wave of same frequency multiplied is
2
3
∞
4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Public address systems generally use electret microphones.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The noise at the input to an ideal frequency detector is white. The detector is operating above threshold. The power spectral density of the noise at the output is
raised-cosine
flat
parabolic
Gaussian
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
As regards BCH code, Hamming code and Reed-Solomon code
BCH and Hamming code are special cases of Reed-Solomon code
Reed-Solomon and Hamming code are special cases of BCH code
BCH and Reed-Solomon code are special case of Hamming code
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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