ONGC Electronics and Communication EngineeringCommunication Systems practice questions with answers,ONGC model questions for practice,ONGC technical questions with answers
1. The input to a coherent detector is DSB-SC signal plus noise. The noise at the detector output is
(a) The in-phase component (Ans)
(b) The Quadrature-component
(c) Zero
(d) The envelope
Solution : The noise at (DSB-SC) detector output is only in phase component
2. The noise at the input to an ideal frequency detector is white. The detector is opera
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