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An audio signal given by `e_1 = 12 sin 2pi`(2000 t) amplitude modulates a sinusoidal carrier wave `e^2 = 50 sin 2pi` ( 100, I00t). What is the upper side band frequency?A. a. 101 KHzB. b. 99 KHzC. c. 100 KHzD. d. 102 KHz |
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Answer» Correct Answer - D Comparing the two equations with the standard equation `e=A sin 2 pint` , we get `f_m`=2000 Hz = 2 KHz = frequency of the modulating signal and `f_C` = 1,00,000 Hz = 100 KHz = frequency of the carrier wave `therefore` Upper side band =`f_C+f_m`= 100 + 2 =102 KHz |
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