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[TowerTalk] Models and Specs in QST Ads

To: <towertalk@contesting.com>
Subject: [TowerTalk] Models and Specs in QST Ads
From: sbest@cushcraft.com (sbest@cushcraft.com)
Date: Wed, 16 Sep 98 16:07:21

     Just a quick response to this issue.
     
     Cushcraft Corporation currently uses several commercially available 
     programs, including NEC4, to design and model our antennas.  We really 
     just began to think about releasing modeling data for the purpose of 
     QST advertising.  In fact, Dean Straw (N6BV) and I spoke very briefly 
     about it today.
     
     Relative to my refusal to provide detailed information to Dave 
     (w6anr), he quite simply asked for more information than we typically 
     provide to customers, like trap L, C and Q values.  This is a bit 
     different than standard technical support.  We thought we were doing 
     the community a big favor by placing all of our manuals on the web 
     page for FREE download.  Everyone should simply have fun with modeling 
     the antennas and comparing performance.
     
     Given the heated exchanges I've been involved in on the reflector, I 
     thought it best to avoid getting involved in supporting (directly or 
     indirectly) personal computer modeling efforts.  All of these software 
     packages provide accurate results based upon the input files.  The 
     problem is that the input files don't always represent the actual 
     antenna.  So if your not directly involved in creating the input file, 
     you can't be certain of the model validity.
     
     73
     Steve
     VE9SRB


______________________________ Reply Separator _________________________________
Subject: [TowerTalk] Models and Specs in QST Ads
Author:  Pete Smith <n4zr@contesting.com> at InterNet
To: <towertalk@contesting.com>
Date:    9/15/98 12:31 PM


It's now been 6 months or so since QST announced its new policy of 
permitting gain and F/B figures in advertisements, if the manufacturers 
would use NEC-4 modeling software to generate the figures and if they would 
share their models with the ham public.  I guess we have Cushcraft's 
answer, via someone who was refused modeling specifics for the X-7/9 
antennas.  I had always expected that Force 12 would be among the first, 
since they are so specific and direct about their specs and how they are 
derived, but nothing so far... Hy-Gain? 
     
So.... what are we dealing with?  Why not make the models, and the data, 
available.  Let the manufacturers respond.  You're all represented here on 
Towertalk ... how about it?
     
     
73,  Pete Smith N4ZR
In wild, wonderful, only middlin' rare WEST Virginia
     
     
     
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