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DFCCIL EE/EC Communication System QUIZ - 1
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In amplitude modulation, the modulation index μ, is kept less than or equal to 1 because
If the modulation index of an AM wave is changed from 0 to 1, the transmitted power
Determine the carrier swing of an FM which have modulation index 5 and modulating signal of 5 KHz
A signal having modulation depth of 0.4 and 0.5 in a multitone modulation AM. What is the overall modulation depth?
An angle modulated signal is given by s(t) = 20 cos[2πfct + 4 sin2000πt]. If fc is the carrier frequency, then the bandwidth of this angle modulated signal, according to the carson’s rule, will be
For a PM modulator with a deviation sensitivity K = 2.5 rad/V and a modulating signal vm(t) = 2cos(2π2000t), the peak phase deviation m will be
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Jun 27AE & JE Exams