Topband: Ground Screens - Another Small Space Option
k2hk at arrl.net
Tue Sep 25 14:02:34 EDT 2012
Rob Sherwood was once a strong advocate of chicken wire and has run many tests. Perhaps he might chime in here with some comments.
> From: zr at jeremy.mv.com
> To: jim at audiosystemsgroup.com; topband at contesting.com
> Date: Mon, 24 Sep 2012 22:07:03 -0400
> Subject: Re: Topband: Ground Screens - Another Small Space Option
> I got the idea of the mesh at work from a Tech Class engineer but dont
> remember him referencing HRM. This was in the mid 80's and I was complaining
> about the poor performance of a shunt fed 100' tower with 10/15/20 4el yagis
> for top loading and 60 radials of 60-130' or so.
> Since chicken wire is only twisted, thin, and very cheap, I decided its
> utility would be very short lived and went with the 2X4" rabbit wire which
> is welded, hot dip galvanized and plastic coated. Quite expensive (no China
> brands) but I found 5 4x50' reels in the next town in the local "Want
> Advertiser" that had been used less than a year and was a fraction the cost.
> When I moved here it came with me and its been rolled up in the woods since
> 1989, still looking fine. I went with elevated radials instead for the 2
> element 1/4 waves.
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