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Re: [TenTec] RF Ground

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] RF Ground
From: Jim Brown <k9yc@audiosystemsgroup.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 04 Apr 2009 22:05:03 -0700
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Bob McGraw - K4TAX wrote:
> Several  points:
> (c)  I did mention that ground wires or conductors can radiate or receive 
Yes, you did, absolutely correct. I agree completely. I was keying in on 
the RF Ground idea and forgot to reinforce your many excellent comments. 
Sorry, Bob. My bad.
> (d) I've worked in professional audio for most of my life and dealing with 
> both balanced and unbalanced systems.   I don't have a clue about "pin 1" 
> problems as I've never encountered it.  I figure it is like RF ground, 
> likely a factor that doesn't exist in science
The "pin 1 problem" is a mis-termination of a cable shield, so-named 
because first addressed in the pro audio world, and pin 1 is the 
designated shield contact for XLR connectors, the dominant connector in 
that world. . Lots of tutorial material on my website.   
http://audiosystemsgroup.com/publish  It was first published by Neil 
Muncy, ex-W3WJE, who now lives near Toronto.

Pin 1 problems are the major cause of RFI in modern equipment of all 
sorts, including ham gear. Once you see the tutorial material, you'll 
say -- oh, yeah, of course it's dumb to do it that way! 


Jim Brown K9YC
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