Another excellent source of programs for tuner network analysis is
http://www.btinternet.com/~g4fgq.regp/index.html#S102
These programs include analyses for the L, T, and PI networks with provision
for specifying component Q's so that losses can be calculated not only for
the basic tuner design but also for specific loading conditions.
Reg Edwards is an old-time English ham and retired engineer with a penchant
for turning out easy to use, very informative programs for a variety of
amateur applications.
Using these programs, one can directly compare the tuner losses for a given
load for each network configuration. Although they are DOS programs, I run
them all the time under XP PRO with no difficulty or special steps.
73/72, George
Amateur Radio W5YR - the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
<mailto:w5yr@att.net>
----- Original Message -----
From: "Al Scanandoah" <k2zn@rochester.rr.com>
To: "Alfred Lorona" <w6wqc@dslextreme.com>; <tentec@contesting.com>
Sent: Friday, July 04, 2003 7:25 AM
Subject: Re: [TenTec] Re: L net tuners
> With regard to network loss, here are a couple tools that I use
> regularly:
>
> http://www.qsl.net/ac6la/xlzizl.html (requires Excel)
>
> ftp://ftp.qrz.com/files/antennas/tl.zip (DOS app.)
>
> It's amazing how much loss there can be between a T and L network.
>
> Al, K2ZN
>
> Alfred Lorona wrote:
> >
>
> >
> > Usually, the L network tuner will provide the least loss compared to the
Pi
> > or Tee configurations.
> >
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