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Re: [TowerTalk] log modeling and reality

To: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Subject: Re: [TowerTalk] log modeling and reality
From: "Steve, W3AHL" <w3ahl@att.net>
Reply-to: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Date: Sat, 23 Jan 2010 21:13:51 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I helped a local ham build a T-8 last fall and it still has a 1.5" square 
aluminum tubing split boom transmission line.  I've heard that some of the 
early Tennadynes used round tubing split booms, but that shouldn't affect 
efficiency either way.

Steve, W3AHL
----- Original Message ----- 
From: "jim Jarvis" <jimjarvis@optonline.net>
To: <towertalk@contesting.com>
Sent: Saturday, January 23, 2010 8:59 PM
Subject: [TowerTalk] log modeling and reality


>
> I had both an ASL 2010 and a T8.
> The 2010 was a dog.    The T8 wasn't.
>
> I suspect this had to do with the feed system.   The then Tennadyne design
> was extremely efficient.  ( Someone said they've changed the boom
> design, and no longer use the transmission line boom.  I'd be suspicious 
> of
> current performance. )
>
> The devil is in the details, and the models tend to ignore many of those.
> If the 2010 and T8 were judged using the same model, relevance comes into 
> question.
>
> 73, n2ea
>
>
>
>
>
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