R

Rakesh Kumar • 28.44K Points
Instructor II 

Q. Gaussian pulses are used when cost and power efficiency are major factors.

(A) true
(B) false
(C) ---
(D) ---
Correct : Option (A)

Explanation: 
 gaussian pulses are used when cost and power efficiency are major factors. but the bit error rates due to isi are deemed to be lower than what is nominally required. thus, there is a trade-off between desired rf bandwidth and irreducible error due to isi.

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