A channel has a frequency range between 3 KHz and 14 KHz. The SNR in this channel is 25 dB. Find the maximum Bit rate of the channel and the Signal levels. [3 marks] For a bit stream "0 1 1 0 0 1 0 1", sketch the waveforms for (i) NRZ-I - (Assume the initial level at time zero is Low) (ii) NRZ-L – (assume 0 as High and 1 as Low) (iii) RZ Encoding - (Assume the initial level at time zero is Low) [3 marks]

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