For telegraphy the most commonly used modulation system is
A) fsk
B) two tone modulation
C) pcm
D) single tone modulation
Correct Answer:
Verified
Q4: VSB modulation is preferred in TV because
A)it
Q5: A woofer should be fed from the
Q6: When the length of antenna is a
Q7: Circular polarization
A)is useful in reducing depolarization effect
Q8: An FM radio receiver which is tuned
Q10: Commercial Frequency deviation of FM is
A)70 khz
B)75
Q11: The colour of an object is decided
Q12: In Pulse Code Modulation system
A)large bandwidth is
Q13: Which of the following statements is correct?
A)convex
Q14: In Modulation, "carrier" is
A)resultant wave
B)speech voltage to
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