Question 1. Select the correct statement regarding the difference between the FM and the AM modulated signal waveforms. a. There is no difference between the FM and AM signal waves because they are both modulated by the same message wave, m(t) = Amcos(2fmt) b. The AM modulated signal accurately represents the message; the FM modulated signal does not accurately represent the message wave c. Neither AM nor FM modulated signals accurately represents the message wave d. The AM modulated signal accurately represents the message; the FM modulated signal accurately represents the message wave

Plot the following equations: m(t) = 10cos(2*300Hz*t) c(t) = 3cos(2*15kHz*t) Kvco = 1000 Question 2. Select the statement that best describes the resultant wave forms. a. The AM signal begins to distort because the AM index is too high b. The FM signal appears to faithfully represent m(t) c. Both AM and FM signals represent the message accurately. d. both a and b are true

Plot the following equations: m(t) = 3cos(2*300Hz*t) c(t) = 5cos(2*10kHz*t) Kvco = 10 Question 3. Select the statement that best describes your observation. a. Kvco is large enough to faithfully represent the modulated carrier s(t) b. By viewing the AM modulated plot, distortion can easily be seen, which is caused by a large AM index. c. Kvco is very small, which means that the FM index is very small, thus the FM modulated carrier does not faithfully represent m(t). d. b and c are correct

4.Select the statement that best describes the PM wave. a. Carrier phase angle changes represent the PM modulated signal, however, unlike FM and AM modulated carriers, it is not always easy to see these phase changes in the plot. b. The FM signal accurately represents the message. c. Although PM and FM techniques are classified as angular modulation techniques, they cannot be used interchangeably (i.e., modulated with FM and demodulated with PM, and visa versa). d. All statements are correct.

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