Download Aptitude Crack
img not found img not found

Communication Systems

Q1: Companding is used

A to overcome quantising noise in PCM

B in PWM receivers to reduce impulse noise

C to protect small signals in PCM from quantising noise

D none of the above

ANS:C - to protect small signals in PCM from quantising noise

I believe answer is correct.

Because the idea is to have more levels at the lower levels than at high levels. True it does decrease S/N so some people might think option A is the right answer but more accurate is option C.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.