[Milsurplus] LO radiation

[Dave Merrill]

>Argh, one always finds something after hitting the "send" button.
>
>The source for Greg Goebel's assertion about Metox  
><http://www.vectorsite.net/ttwiz4.html#m3> is apparently
>
>"A Radar History of World War II: Technical and Military Imperatives"  
>by  Louis Brown
><http://www.amazon.com/exec/obidos/ASIN/0750306599/ref=sib_rdr_dp/102 
>-2646842-0630532>.
>
>The index for this book is viewable on-line, and contains the following  
>entry "Metox, Local oscillator emanation, (pg) 341". Perhaps someone  
>with ready access to this book could post an excerpt from page 341?

Here you go, happened to have it handy:

Louis Brown "A Radar history of World War II: Technical amd Military 
Imperatives" Bristol and Philadelphia: Institute of Physics Publishing, 1999

pp 341-342:

"A third possibility was that the aircraft were using some means of
homing on the surfaced boats, and emaninations from Metox receivers
immediately came to mind.  All heterodyne receivers radiate to some 
degree at the local oscillator frequency, detectable if one seeks it.  At
about this time an unknown Costal Command prisoner told his interrogators
that the patrol planes were indeed homing on the receivers.  Coming at the
time that it did, this removed all doubt about the origin of the mysterious
attacks, and on 13 August Donitz ordered all Metox sets removed from
service.  A replacement receiver that radiated substantially less and that
was also specially designed to detect short bursts of radar signal, the
Wanz G-1, was quickly put into service and just as quickly removed, yet
most patrol aircraft were still equipped with the 1.5 m radar.  By the end
of 1943 U-boat skippers mistrusted all radio equipment [34].  The identity
of the prisoner who 'confirmed' the Metox radiation theory has never come
to light.  Evidence points to individual imagination and action, not to
an intellence plant [35].  Patrol aircraft crashed into the ocean, so 
examination of the equipment they employed could not be made."

[34] PRICE 4, pp 165-171; REUTER, pp 162-166
[35] PRICE 4, pp 165-171

PRICE 4 = Alfred Price "Aircraft verses Submarine: the Evolution of the
Antisubmarine Aircraft, 1912-1980" London: Jane's Publishing Co., Ltd, 1980

REUTER = Frank Reuter "Funkness: Die Entwicklung and Einsatz des RADAR-
Verfahrens in Deutschland bis zum Ende des Zweiten Weltkrieges" Opladen:
Westdeutscher Verlag GmbH, 1971