Power conditioner filters AC but just as any piece of electronics it will generate and radiate EMI. If you look inside your furnan there are several transformers and all the components you plug into it will result in current flow thru the Furnan. Which means it will generate and radiate EMI.

as a simple test you can order this gadget from amazon and measure it.
Hey I’m just giving you a free advice. Treat it for what it’s worth

