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Re: Topband: Ground Screens - Another Small Space Option

To: Howard K2HK <k2hk@arrl.net>
Subject: Re: Topband: Ground Screens - Another Small Space Option
From: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 25 Sep 2012 16:45:56 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Some rabbit wire sold here is coated which should solve some of the corrosion problems but if they are laid side by side they probably would require scraping of the coat and welding every five feet or so to maintain radial field continuity, and then re-coating the welded joint. Any difference by "floating" in the dirt is a calculation above my pay grade.

Herb Schoenbohm, KV4FZ





On 9/25/2012 4:13 PM, Howard K2HK wrote:
I didn't mean to imply that chicken wire is as good as the rabbit wire. In fact 
I had exactly that situation with chicken wire. Definitely agree that most 
situations must be evaluated on their own merits and circumstances. I am aware 
of Rob's call but just thought this might prompt him to relay some of his 
experiences.

Howard  K2HK


From: zr@jeremy.mv.com
To: k2hk@arrl.net; topband@contesting.com
Subject: Re: Topband: Ground Screens - Another Small Space Option
Date: Tue, 25 Sep 2012 15:11:26 -0400

Im sure chicken wire lasts longer in the great southwest but it rapidly
turns to rust in the acidic soil and acid rain of the New England rust belt.
I see rolls of it regularly at our trash transfer station and Id be willing
to bet the current Chinese variety rusts a lot faster than the earlier US
variety.

I keep stressing that the one size fits all theory of some just doesnt work
for Topband antennas and grounds.

It is not recommended to use stranded copper wire for RF or DC/AC grounds
and that should also apply to galvanized wire that only has a few twists at
each junction. Each junction can eventually become a diode and I believe
most of us on here are aware what that can cause.

Carl
KM1H

Rob Sherwood was once a strong advocate of chicken wire and has run many
tests. Perhaps he might chime in here with some comments.


Howard  K2HK


                                        
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UR RST IS ... ... ..9 QSB QSB - hw? BK

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UR RST IS ... ... ..9 QSB QSB - hw? BK

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