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Briefly explain the concept of a digital signal as a composite analog signal. Explain the baseband transmission of the digital signal. What do the Nyquist

Briefly explain the concept of a digital signal as a composite analog signal. Explain the baseband transmission of the digital signal. What do the Nyquist theorem and the Shannon capacity have to do with communications? We have a channel with 4 kHz bandwidth. If we want to send data at 100 Kbps, what is the minimum SNRdB? What is the SNR

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