Noise studies - scope traces for ch16, which shows the largest amount of 4MHz pickup.
Noise 1950V, 90/10 premix
|
Noise - zoom on 4MHz - 1950V, 90/10 premix
|
After connecting the preamp ground to the preamp end of the cable shielding
Noise - cable shield connected to preamp ground, 1950V, 90/10 premix
|
Noise - zoom on 4MHz - cable shield connected to preamp ground, 1950V, 90/10 premix
|