[sdiy] 100 MHz EMI, what can it be?

[Grant Richter]

> The air is full of RF, the railway will add
> 16 2/3 Hz power line noise and magnetic fields
> to that. Could you ask for more for such a
> test? ;->

In one interview with Wendy Carlos, she talked about building her studio
with aluminum backed drywall, and and connecting and grounding all of them
to form a Faraday shield around the entire studio.

She mentioned a 10 dB drop in the noise floor of analog gear, and realized
some of the transistor hiss was actually rectified broadband RF.

That would be a good tip if you were building a new studio installation. I
don't think aluminum backed drywall costs that much more than the regular
kind.

Of course, this is electrostatic shielding, magnetic shielding would be much
more expensive.