As I drive home in the evenings I listen to radio 4. Mornings it's Wogan, in the evenings it's Radio 4, it's just an age I'm going through. At a certain exact point on the road, most evenings, radio 4 is fleetingly replaced by what sounds like some local channel. It happens, and sorts itself, too fast to be sure what it is.
The first few times I heard it I reckoned a vehicle going the other way might have an FM transmiter on their MTP3 player, but I make that journey so often that I've narrowed it down to an exact spot on the road. It's nothing to do with traffic. There are some LV power lines along that road, but they come closer to the road further North wher there's no problem. At the exact spot I get the interfrence there's nothing but hedges and trees. There's what looks like a GSM antenna tower a few hundred feet away in a field, but it gets closer to the road further down with no problems.
One of these days I'm going to park the car and then wander up and down with a hand-held radio to see what happens. That's a less attractive idea with the cold weather and dark evenings, so if anybody has other ideas I'd be fascinated to hear.
To be absoulutely specific, I'm talking of A413 Southbound approaching Whitchurch near Aylesbury, about 100ft before the 30mph signs. I wonder what effect it has on DSL for nearby properties