Use the following to answer question 27 to 31. An angle modulated signal is given by x(t) = 10 cos [21 f1 +4 sin(2000ft)
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Use the following to answer question 27 to 31. An angle modulated signal is given by x(t) = 10 cos [21 f1 +4 sin(2000ft)
question 27 to 31. An angle modulated signal is given by x(t) = 10 cos [21 f1 +4 sin(2000ft)] where f. =10 kHz. 27. Which modulation scheme is described by the preamble above? A. Phase modulation (PM) B. Frequency Modulation (FM) C. Both PM and FM D. Signal is amplitude modulated (AM) 28. Find the peak-phase deviation. A. 2 B. 4 C. 41 D. 87 29. Find the peak frequency deviation (from the center frequency, f.). A. 9000 B. 4000 C. 8000T D. 4000TC 30. Find the power of the signal. A. 100 B. 50 C. 25 D. 12.5 31. Find maximum instantaneous frequency of the signal described in the preamble. A. 20 kHz B. 16 kHz C. 14 kHz D. 12 kHz
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