[RFI] Pulse EMI on 20M

[Facility 406]

> This is some form of power-handling electronics cycling on and off. 
> Anything from lights to heaters to industrial equipment. It is NOT power 
> line noise.

Any info, links, pictures, documents, on the type of equipment that 
would suddenly appear, and do this?

I've heard a a lot of things, but never like what the fellow posted, and 
not seen such things in the forums over the years.

Kurt