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Recent questions tagged modulation
+3
votes
1
answer
What is de-emphasis?
asked
Apr 7, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+3
votes
1
answer
Distinguish between amplitude modulation and frequency modulation.
asked
Apr 5, 2019
in
Physics
by
kratos
isc
cbse
communication
electromagnetic waves
communication systems
modulation
icse
class-12
contemporary physics
+1
vote
1
answer
Explain with circuit diagram the pre-emphasis and de-emphasis processes.
asked
Apr 5, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+3
votes
1
answer
Define modulation index for an AM wave. What is its significance?
asked
Apr 5, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+2
votes
0
answers
An FM signal has a deviation of 10kHz and modulating frequency of 5 kHz. Calculate the modulation index.
asked
Apr 4, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+2
votes
1
answer
Define modulation.
asked
Apr 3, 2019
in
Class 12
by
kratos
demodulation
isc
cbse
class-11
communication systems
biomolecules
modulation
icse
class-12
+1
vote
1
answer
Which is not true? The electronic devices are capable of performing the functions of a
asked
Apr 2, 2019
in
Class 12
by
kratos
semiconductor electronics
demodulation
modulation
real numbers
class-10
class-12
bitsat
+2
votes
1
answer
What is an envelop detector?
asked
Apr 2, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+3
votes
1
answer
A carrier voltage frequency is 1MHz and modulating signal frequency is 5KHz.
asked
Apr 1, 2019
in
Class 12
by
kratos
demodulation
bsnl
communication systems
modulation
class-12
+1
vote
1
answer
Which is better for high sensitivity reception FM or AM?
asked
Apr 1, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+1
vote
1
answer
In the block diagram of a simple modulator for obtaining an AM signal shown in the figure, identify the boxes A and B. Write their functions.
asked
Mar 30, 2019
in
Class 12
by
kratos
modulation
class-12
communication systems
cbse
+2
votes
1
answer
What are the disadvantages of FM system?
asked
Mar 29, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+1
vote
1
answer
What is **** antenna?
asked
Mar 29, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+2
votes
1
answer
The antenna current of an AM broadcast transmitter, modulated to a depth of 40% by an audio sine wave is 11 A.
asked
Mar 29, 2019
in
JEE
by
kratos
demodulation
waves and optics
cbse
physical optics
jee
modulation
jee mains
class-12
+3
votes
1
answer
What difference between sky wave and space wave
asked
Mar 27, 2019
in
Class 12
by
kratos
neet
cbse
aiims
communication systems
modulation
class-12
+3
votes
1
answer
What is digital communication?
asked
Mar 26, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+3
votes
1
answer
Due to economic reasons, only the upper sideband of an AM wave is transmitted,
asked
Mar 25, 2019
in
Class 12
by
kratos
communication systems
modulation
class-12
demodulation
+3
votes
1
answer
What is SSB-TC?
asked
Mar 20, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+2
votes
1
answer
What is the purpose of AFC loop? Why is it necessary for a receiver?
asked
Mar 20, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
+1
vote
1
answer
Define sensitivity.
asked
Mar 20, 2019
in
Class 12
by
kratos
modulation
class-12
demodulation
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