Thursday 25 October 2012
Monday 22 October 2012
Wednesday 17 October 2012
chap 1 board question of w11 s11 w12
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SR.
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Question
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marks
|
year
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|
1.
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What is superhetrodyne
receiver ? explain with respect to AM receiver .
|
4 marks
|
S11
|
|
2.
|
draw square law diode detector
.State its limitations
|
-4marks
|
w11
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|
3.
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draw AM waveform in time domain
for m>1,m=1 &m<1
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6marks
|
w11
|
|
4.
|
Draw frequency spectrum of AM
.state 2 advantages of FM over AM
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4 marks
|
S12
|
|
5.
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Compare AM & FM
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4 marks
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W 11, w11
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6.
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Compare AM & PM
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4 marks
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W11
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7.
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Draw neat block diagram of
Communication system. State functions of each block
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4 marks
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S 12, S11
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8.
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Draw neat diagram of AM
transmitter ,Describe function of each block
|
6 marks
|
S 12
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9.
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Define FM state ideal &
practical B/W requirement of FM
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4 marks
|
S12
|
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10.
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Find % modulation when Emax=132 V.P.P. & Emin = 28 V.P.P Draw AM waveform
|
4 marks
|
S12
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11.
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Draw frequency spectrum of AM
.state 2 advantages of FM over AM
|
4 marks
|
S12
|
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12.
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Define modulation index of
AM , draw waveform for m=1,m<1,m>1
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4 marks
|
S12
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13.
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Define FM state ideal &
practical B/W requirement of FM
|
4 marks
|
S12
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14.
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Compare AM,FM ,PM w.r.t.
waveform ,B/W , MI, frequency Spectrum
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4 marks
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S11
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|
15.
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Compare AM,FM ,PM w.r.t.
waveform ,B/W , MI, frequency Spectrum
|
4 marks
|
S11
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Monday 8 October 2012
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