railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Angle Modulation Frequency Modulation
Which of the following statements about FM detection using PLL circuit are correct?
S1: At the error amplifier output, we get demodulated FM output.
S2: FM signal is applied to the input of the PLL.
1
Only S1
2
Neither S1 nor S2
3
Only S2
4
Both S1 and S2