A DSB modulated signal u(t) = \frac{A}{2} m(t) cos4\pifct is mixed (multplied) with a local carrier xL(t) = cos(4\pifct + \theta ) and the output is passed through a lowpass filter with a bandwidth equal to the bandwidth of the message m(t). The signal power at the output of the lowpass filter is denoted by Pout. The modulator signal power is denoted by Pu. Plot \frac{P_{out}}{P_{u}} as a function of \theta for \theta \leq \theta \leq \pi

A DSB modulated signal u(t) =  m(t) cos4fct is mixed (multplied) with a local carrier xL(t) = cos(4fct +  ) and the output is passed through a lowpass filter with a bandwidth equal to the bandwidth of the message m(t). The signal power at the output of the lowpass filter is denoted by Pout. The modulator signal power is denoted by PuPlot  as a function of  for

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