Electronics and Communication Engineering - Communication Systems

6.
How much is contributed by each bit in the code word of a PCM system under uniform and symmetric quantization to the signal to noise ratio?
3 dB
4 dB
5 dB
6 dB
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
Noise which assumes great importance at high frequencies is
flicker noise
Johnson noise
transit-time noise
shot noise
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Which one is Analog Continuous modulation technique?
AM
DM
PAM
PCM
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
AM transmitter employing low level modulation
uses class C amplifier for amplification
requires higher audio power
has a poor efficiency
has a higher efficiency
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
As the area of a public meeting increases the amplifier power output required increases.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.