In article ,
Keith G wrote:
You may be interested to know that the FM signal on my car radio
disappears (mostly, not *always*) when I pull off the main drag down
the bottom of the road from here!!??

Years ago before the fill in R4 transmitter at CP, Wrotham used to totally
disappear when crossing Wandsworth Common on Trinity Road in the car and
inching forward in a traffic jam. To the point where you couldn't hear
what was being said. Move a few feet and it came back. And the then DG,
John Birt, lived just off this road. But no external TV or radio aerial on
his house. Not far from that on the other side of the common I'd got an 8
element FM yagi to try and minimise FM multipath.

Either he didn't listen to BBC radio, or he had a line feed. ;-)

--
*If tennis elbow is painful, imagine suffering with tennis balls *

Dave Plowman London SW
To e-mail, change noise into sound.