InterviewSolution
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InterviewSolution
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In the block diagram of a simple modulator for obtaining an AM signal shown in the figure, identify the boxes A and B. Write their functions. |
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Answer» Identification: A is the square law device. B is the bandpass filter. Functions: Square law device is a non linear device and produces the output. Bandpass filter rejects dc and sinusoidal frequencies,ωm, 2ωm,2ωc and gives the AM wave as its output. |
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