Thanks Rambo and Freya that's exactly what I was talking about. I think the multi strand cable to the wall switch carried signals at SW ie 9 Megs or so but I may be wrong about that
. I sent my switch to Dave Moll years ago and received some money I hadn't asked for. That's the Forum for you, he wouldn't take it back. Apart from Rammy and Bexhill [Hastings Cable Service] my brother in law lives in Shoreham. There seemed to be a lot going on there as well. The proximity of French 819 broadcasts was an ongoing second "Channel" problem I gather.. especially in the summer heat
Dave W