An AM modulator operates with the message signal
m(t) = 6 cos(10t) + 4 sin(30t) (3)
with unmodulated carrier 50 cos(30t) and index of .1
(a) Write the equation for mn(t) the normalized signal with minimum value of -1.
(b) Determine the power [m2n(t)].
(c) Determine the eciency of the modulator.
(d) Sketch the double-sided spectrum of xc(t), the modulator output, and the weights and frequencies of the components.