[TenTec] TenTec Digest, Vol 46, Issue 45

[Gary Hoffman]

Mike,

I'm curious.  What is the theory behind this approach ?  I'm always
interested to learn more approaches to grounding.

Gary


----- Original Message ----- 
From: "Mike Gorniak" <mgorniak at genesiswireless.us>
To: <tentec at contesting.com>
Sent: Monday, October 16, 2006 11:39 AM
Subject: Re: [TenTec] TenTec Digest, Vol 46, Issue 45


> Hi John,
>
> If you are going to run that wire down to a ground rod, you might try
> using coax instead. Attach the center conductor Only at the rig end, and
> connect Both the shield And the center conductor at the ground rod end.
> Another variation is to connect the center conductor Only at both the
> rig and ground rod ends, and then use a .1 or .01 mfd. capacitor to
> connect between the shield and the Center conductor at the ground rod
> end, or both ends.
>
> When I had my ham shack on the second floor, this configuration worked
> for me.
>
> Good Luck, and please let us know of your progress!
>
> 73,
>
> Mike
> NM7X
>
> ------------------------------
>
> Message: 3
> Date: Sun, 15 Oct 2006 12:49:10 -0400
> From: "John K Gotwals" <john at gotwals.com>
> Subject: [TenTec] Orion and RF Feedback
> To: <tentec at contesting.com>
>
> Ray, many thanks for your comments. I have already found that touching the
> mike makes a difference, although that may just be the symptom of a more
> serious grounding problem at this end. Radioworks
> http://radioworks.com/nbgnd.html has an illuminating discussion of ground
> problems, and my next step is to drill another hole through the window
sill
> and run a wire down a story and a half to a ground rod. In addition I will
> try a counterpoise consisting of a 1/4 wavelength (at 40 meters) piece of
> hookup wire strung down the hall to determine its affect on my problem.
> W2DU
> choke filters between the Matchbox and amplifier and between the amplifier
> and Orion appear to have helped lessen the problem.
>
> John, N9JG
>
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