12. Vary the variable DCV module’s VDC control left and right. At the same time, slowly turn the tunable low-pass filter module’s cut-off frequency adjust control anti-clockwise.
13. Stop turning the tunable low-pass filter module’s cut-off frequency adjust control once the PCM decoder module’s output becomes corrupted.
Question 1
Why does bandwidth limiting of the channel cause the PCM decoder module to output incorrect voltages as well as the correct one? Tip: If you’re not sure, see the preliminary discussion.