- An AM transmitter is modulated with an audio testing signal given by m(t) = 0.8...

  

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- An AM transmitter is modulated with an audio testing signal given by m(t) = 0.8 sin(wt) + 0.4 cos(wt), where f = 300 Hz, f = 450 Hz, Ac = 100 and fe=700kHz. Assume that the AM signal is fed into a 75-Q load. (a) Evaluate and sketch the spectrum of the AM waveform. (b) Evaluate the average power of the AM signal. - An AM transmitter is modulated with an audio testing signal given by m(t) = 0.8 sin(wt) + 0.4 cos(wt), where f = 300 Hz, f = 450 Hz, Ac = 100 and fe=700kHz. Assume that the AM signal is fed into a 75-Q load. (a) Evaluate and sketch the spectrum of the AM waveform. (b) Evaluate the average power of the AM signal.