I never used TA and I was not aware that it worked modeled stacks. That is
fantastic. I would love to see a program that could model verticals over
terrain. I used YO and AO a lot, Brian did an amazing job writing these
programs. YO was super user friendly and fast that anyone could design a
Yagi. It's too bad that he walked away from the ham market, imagine what he
could have done in two+ decades.
John KK9A
To: <towertalk@contesting.com>, "Grant Saviers"
<grants2@pacbell.net>
Subject: Re: [TowerTalk] add a 3rd el to 40-2cd
From: "Bob Shohet, KQ2M" <kq2m@kq2m.com>
Date: Tue, 13 Mar 2018 18:03:46 -0400
I was fortunate to be using K6STI's YO and TA programs to model my antennas
over my incredibly complex terrain. I found no equal program when it came
to
the combination of modeling antenna stacks over terrain files that you could
easily construct and use. Of course it runs only in DOS which is one of the
reasons that I continue to maintain my two DOS based computers.
I stayed with YO and TA precisely because it did not compromise stack
modeling
or terrain modeling. And it was/is amazingly accurate.
I also found the NW program to be very useful to model and build wire beam,
4-square and phased vertical antennas. It was also great for modeling and
designing phased beverages back about 15 years ago.
With the incredible advances in technology and knowledge over the past 20+
years since K6STI created his program, I'm not sure why someone hasn't yet
designed a Windows program that can accurately model any combination of wl
phasing with any combination of antennas over any type of terrain from a
terrain file that you create yourself. Certainly the need and demand for
such
a program is there especially given just how many people who "pooh-poohed"
the
idea of such a program decades ago would gladly pay for such a program
today!
Bob KQ2M
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