On Mon, 27 Apr 2009 18:42:15 GMT, "Brian Gaff"
wrote:

That was what I meant, its audible on medium wave, but the direction nulling
only seems to locate it in our block not much else. I've had all my stuff
out, and the neighbour one way seems clear, but its just like you might
hear from an AC arc, but in a short say up to ten seconds burst, then thirty
seconds of nothing, then its back again, and its very loud on medium, even
worse on long wave and detectable on the fm band as well.
Brian

Don't suppose you could record it and post it somewhere? Ten seconds
is a long time for a switch to be arcing - could it perhaps be a bad
DC motor brush?

d