4 x yagis stacked is only 4db ? Per the original article, it was a
flame thrower.
Jim VE7RF
On Fri, Sep 3, 2021 at 11:15 AM Peter Voelpel <dj7ww@t-online.de> wrote:
> The stacking gain on 20m will be less then 4dB.
>
> 73
> Peter
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> jim.thom jim.thom@telus.net
> Sent: Freitag, 3. September 2021 19:49
> To: towertalk@contesting.com
> Subject: [TowerTalk] TH-7
>
> 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".
>
> Jim VE7RF
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