Frequency Modulation Quizz 1
Authored by Manjunatha P
Engineering
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The man behind the invention of frequency modulation is
Edwin Howard Armstrong
John Chowning
Reginald Fessenden
None of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Modulation index in frequency modulation can be determined by using
δf / fm
Am/fm
Am/Ac
Ac/fm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Noise immunity is superior in
Amplitude Modulation
Frequency Modulation
Phase Modulation
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In FM signals the amount of frequency deviated is dependent upon
Modulating frequency
Carrier frequency
Amplitude
Phase
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carson’s rule formula for bandwidth calculation is
fm
2fm (β+1)
2 fm
2(Δf+fm)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Δf in the Carson’s rule stands for
Peak deviation in frequency
Required bandwidth
Highest frequency
Modulating frequency
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parameters constant in FM are
Amplitude
Phase
Frequency
Both a and b
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