On 9/3/21 10:49 AM, jim.thom jim.thom@telus.net wrote:
Date: Fri, 3 Sep 2021 09:59:46 -0400
From: "Mike Ryan" <mryan001@tampabay.rr.com>
To: <TowerTalk@contesting.com>
Subject: Re: [TowerTalk] TH-7
<There was an op in Texas who mounted 4 of these on a rotating tower. There
<was an article in one of the ham magazines some years ago about it. But it
<was impressive. The TH7 has 5 elements on 10mtrs which soon will be more in
## It was on the front cover of a CQ magazine, back in the 80's. He
stacked em at 35-70-105-140'. With all 4 driven in phase, he was 20 db
louder than another ham, close by, who had just a single TH-7 up 70'.
I find that hard to believe, but that was what was reported.
The article was entitled.... "TH-28".
maybe the single TH-7 was at the "wrong" height for the propagation
path, or he was feeding it with RG174 or something..
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