Noise on [a signal] in [my
setup]. An ordered hunt —
grounding, layout, coupling
path, supply — with what to
measure and what result clears
each suspect.

Track Down Electrical Noise

An ordered hunt, with a clearing test at each step.

Prompt

I'm seeing noise on [a signal] in [describe the setup]. Give me an ordered hunting procedure — grounding, layout, coupling path, supply — with what to measure at each step and what result would clear that suspect.