[Test-Equipment] question

[Richard Knoppow]

----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "Discussion of Electronic Test Equipment" 
<test-equipment at mailman.qth.net>
Sent: Sunday, December 13, 2009 9:21 AM
Subject: Re: [Test-Equipment] question


>I spent too many hours in a Link Trainer in the Early '60s.
>
> The "side" of the beam where A was heard changed when you 
> went through
> the "cone of silence" and came out the other side.  These 
> things could
> confuse you no end.
>
> They were spaced 200mi apart.  You had to switch over from 
> one to the
> next quickly.
>
> Too many old memories!
>
> Just remember, it took significantly more than the filter!
>
> Bob - N0DGN
>
     I actually had a very little experience with a Link 
trainer. The local CAP section had one on loan from probably 
the USAF. I got to fly it once. I was about junior 
highschool age. What an amazing machine:-)
     Several of the old electronics (pardon, RADIO) books to 
be found on-line have sections on the old radio navigation 
system with explanations of the antenna systems and keying 
methods. Old range maps are probably collector's items now.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com