1- Which of the following analogue modulation scheme requires the minimum transmitted power and minimum channel bandwidth: a) VSB b) DSB c) SSB d) AM

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1- Which of the following analogue modulation scheme requires the minimum transmitted
power and minimum channel bandwidth:
a) VSB
b) DSB
c) SSB
d) AM
2- Consider the frequency modulated signal 10 cos[27 x 105t + 5 sin(2π x 1500t) +
7.5 sin(2n x 1000t)] with carrier frequency of 10³ Hz. The modulation index is :
=
a) 12.5
AE
d)s
fm
b) Yo
(c) 7.5
Ac eve [1+ mxm
famplitude
Transcribed Image Text:1- Which of the following analogue modulation scheme requires the minimum transmitted power and minimum channel bandwidth: a) VSB b) DSB c) SSB d) AM 2- Consider the frequency modulated signal 10 cos[27 x 105t + 5 sin(2π x 1500t) + 7.5 sin(2n x 1000t)] with carrier frequency of 10³ Hz. The modulation index is : = a) 12.5 AE d)s fm b) Yo (c) 7.5 Ac eve [1+ mxm famplitude
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