On 31/03/2021 15:33, Adam Funk wrote:
Similarly, I had an out of use UHF aerial splitter under the floor, that
always floated high enough to give you a good belt, despite the cables
being connected to nothing else!
Well, that's weird.

In 55 years as an aerial installer I never came across such a thing.
Sounds like there actually was a connection to the mains hidden away
somewhere.

Bill