Right. Which is why it's unlikely. But interesting channel.
I sometimes think about power analysis, picking up the high frequency signal through your home power lines.
Add some capacitors between your mains and ground to create a cheap low-pass filter.
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Remind me what a ferrite core/choke/ring/bead is for. Does it have the same effect?
Yes, that also works. Inductive vs capacitive. I think a full filter uses both. It has been so long since college.
