The question (finally) is this: was it designed to pass the energy by RF
coupling? Isn't that a bit lossy on what is a weak signal anyway?

And have I ballsed it up by connecting it electrically? I guess it could
have been some sort of lightning protection, but I can't see it being all
that effective, and it's in a loft now anyway...

What make was it?. Wouldn't have been lightning protection anything like
that is akin to ****ing on a nuclear explosion let alone a house
fire;!...
--
Tony Sayer