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Maximum Message Bandwidth and Output Signal

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A PCM system uses a uniform quantizer followed by a 7-bit binary encoder. The bit rate of the system is equal to 50 megabits per second.

a) What is the maximum message bandwidth for which the system operates satisfactorily?

b) Determine the output signal to quantizing noise ratio when a full-load sinusoidal modulating wave of frequency 1 MHz is applied to the input.

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