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a. A periodic composite signal with a bandwidth of 2100 Hz is composed of two sine waves. The first one has a frequency of
a. A periodic composite signal with a bandwidth of 2100 Hz is composed of two sine waves. The first one has a frequency of 50 Hz with a maximum amplitude of 20 V; the second one has a maximum amplitude of 5 V. (1) Find the frequency of the second wave. (ii) Draw the bandwidth. (1 mark) (0.5 mark) b. A signal has passed through FOUR amplifiers, each with a 5 dB gain. What is the total gain? (0.5 mark) Point 1 Amplifier Point 2 Amplifier Point 3 Amplifier Point 4 Amplifier Point 5
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Data Communications and Networking
Authors: Behrouz A. Forouzan
5th edition
73376221, 978-0073376226
