I suspect that it is part of the radio direction finding gear. Threshold
gain = squelch, Loop Gain = sensitivity.
dDvid, K1LD
----- Original Message -----
From: "K1TTT" <K1TTT@ARRL.NET>
To: "YCCC" <yccc@yccc.org>; "reflector cq-contest"
<CQ-Contest@Contesting.COM>; <antennas@qth.net>; "reflector -tower"
<towertalk@contesting.com>
Sent: Thursday, July 24, 2008 5:24 PM
Subject: Re: [YCCC] 1942 aircraft radio question
>
> Yes, one of my guesses was 'Threshold Sensitivity'... but to me that
sounds
> redundant. You set a threshold or you set a sensitivity, a threshold
> sensitivity doesn't seem right to me, but then again this was 60+ years
ago,
> maybe the concepts were a bit different. I am kind of hoping for a bit
> better identification of what it might be off of.
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt@arrl.net
> web: http://www.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
>
>
> > -----Original Message-----
> > From: K1TTT [mailto:K1TTT@ARRL.NET]
> > Sent: Thursday, July 24, 2008 21:10
> > To: YCCC (yccc@yccc.org); reflector cq-contest; antennas@qth.net;
> > reflector -tower
> > Subject: 1942 aircraft radio question
> >
> > Got this from a local kid who has visited here... anyone have an idea of
> > what it is off of?
> >
> > <quote>
> > I have a question for you. While walking around the site of the 1942
> > plane crash near Garnet Peak on the south end of town, someone picked up
> > an oval shaped tag, put it in some solvent, and found that it read
> > "THRES SENS" on one side and "LOOP GAIN" on the other. I would assume
> > this would be off some part of the plane's radio. Do you have any idea
> > what "THRES SENS" means or can you confirm it could be off the radio?
> > <quote>
> >
> > from the web page: http://home.att.net/~jbaugher/1942_1.html
> > I can give you the usaaf serial numbers:
> >
> > 42-6455/6504 Douglas C-53-DO
> > c/n 4907/4956
> > 6463 (c/n 4915) crashed Oct 10, 1942 east of Garnet Peak, Peru, MA.
> >
> > And it was big news at the time:
> >
http://select.nytimes.com/gst/abstract.html?res=F00D11F63A58167B93C5A81783
> > D85F468485F9
> >
> >
> > David Robbins K1TTT
> > e-mail: mailto:k1ttt@arrl.net
> > web: http://www.k1ttt.net
> > AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> >
>
>
>
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>
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