Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!pt.cs.cmu.edu!vi.ri.cmu.edu!rwb
From: rwb@vi.ri.cmu.edu (Bob Berger)
Newsgroups: sci.electronics
Subject: RE: detector-detectors in WWII
Keywords: it ain't true
Message-ID: <10090@pt.cs.cmu.edu>
Date: 2 Aug 90 18:58:11 GMT
Organization: Carnegie-Mellon University, CS/RI
Lines: 19


> In WW II, the Germans installed radar detectors on U-boats.  These 
> also had a problem with local-oscillator radiation, and Allied ASW 
> aircraft were able to home-in on them without radar.

The above statement is NOT true. The mistake is understandable, however,
because the above statement is EXACTLY what a captured British navigator said
when his German captors asked how the submarines were being found.

What was really happening is the British were using a new X band radar
which was beyond the frequency coverage of the German radar detectors. The
story about local oscillator leakage was deliberate disinformation.

Pretty sneaky, huh?

Source: 	"Submarines"
		Antony Preston
		Gallery Books
		ISBN 0-8317-8526-8