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Topband: KM5KG network designer

To: Topband <topband@contesting.com>
Subject: Topband: KM5KG network designer
From: Eric Scace K3NA <eric@k3na.org>
Date: Wed, 10 Feb 2021 10:16:52 -0700
List-post: <mailto:topband@contesting.com>
   Grant KM5KG (SK) had a Windows program for impedance matching network design 
that provided current and voltage levels for each component in the system, 
based on the power passing through the network to the load, as well as many 
other useful features for reducing a theoretical design into a practical 
implementation. I had a copy at one time, but it seems to have disappeared.

   Does anyone have a copy?

   More generally, is there a modern software tool available that:
supports an arbitrary placement of inductors, capacitors, stubs and line 
segments between generator and load
calculates the peak V and I on each element
calculates Z at the input of each stage in the network
nice to have:
Smith chart overview
multiple frequencies; i.e.:
load characterized by Z at several frequencies
Smith chart display of Z with those frequencies at each stage

   I’ve hand-built Excel spreadsheets for specific networks to do the above, 
but it’s very easy to make programming errors on a complex spreadsheet…

   Thanks for any suggestions.

— Eric K3NA
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