[Milsurplus] Earhart flight, again.

[Nick England]

Hi Marty - Captain Safford of OP-20G fame seems to give fair credit to HFDF
in 
"A Brief History of Communications Intelligence in the U.S. Navy"
www.fas.org/irp/nsa/safford.pdf 

An interesting British account of HFDF development and particularly
shipboard use is at
http://www.naval-history.net/xGM-Tech-HFDF.htm

And this paper is also interesting -
Arthur O. Bauer. "HF/DF An Allied Weapon against German U-Boats 1939-1945"
http://www.xs4all.nl/~aobauer/HFDF1998.pdf

but I honestly don't know anything about this subject so maybe all those
post-war Wullenwebers really were  constructed just to keep the elephants
in....
cheers,
Nick K4NYW
www.virhistory.com/navy 

-----Original Message-----
From: Marty Reynolds [mailto:cosmoline at aa4rm.ba-watch.org] 
Sent: Thursday, February 26, 2009 7:59 AM
To: Nick England
Cc: Hue Miller; milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Earhart flight, again.
'way to go!

That indoor tunable adcock is a sight to behold

The fact that pt. Tare HFDF was decommissioned in '44 supports a
private theory.  That is, HFDF was a flop because of ionospheric
reflections - you just couldn't be sure the null direction was
the vector to the transmitter

British claim HFDF helped locate U boats in ww2.  But I think
they used a lot of signal averaging to better pinpoint tx source.
IE they had HFDF in Bermuda, Newfoundland, Scotland,

Chime in y'all

   Marty