IFT372__Practice

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IFT372__Practice_Mid_Term_Exam___Spring_A_2021
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11

March 2022

2021/2022

A+
1. A continuous-spectrum baseband signal has a spectrum extending from 3 kHz to 8 kHz. It is applied as one input to an ideal balanced modulator. The carrier input is a sinusoid having a frequency of 100 kHz. (a) Determine the range of frequencies contained in the DSB output spectrum. (b) Determine the required transmission bandwidth for an AM modulated system. The spectrum of the ranges from 5 to 8 kHz and the carrier frequency is 100 kHz. Therefore, fc=100 kHz and W=5Hz. The lowest frequenc...
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