In message , rnf2
writes

snip

One way used was radio direction finding nad measuing the angles on
the source of german propraganda broadcasts...

Lord Haw Haw was apparantly used a fair bit as he was begining his
nightly braodcasts to reach the british public on dark winter nights
as the bombers were crossing the channel

ironic isn't it... the germans providing their own targettign for the
brits

The Germans shut down their B/C transmitters in groups as the bomber
stream passed over. This allowed the high power transmitter Aspidestra
at Crowborough (800 kW) to butt in on their frequency and play dance
tunes and relay false news programmes. Sefton Delmer 'Black Propaganda'.

Mike
--
M.J.Powell