You could use a handy smith program (free) from
http://www.fritz.dellsperger.net/
Smith V3.10 Setup
Easy to use,no steep lerning curve. :-)
The circuit elements are lossless though.
Another free smith chart program is at
http://ussu.us/Smith_Charts.html
Alternatively you could use TLW3 by Dean Straw (ARRL) which is included with the
ARRL
antenna handbook,but not downloadable from elsewhwere.
It can deal with lossy components.
73
Clemens
DL4RAJ
----- Original Message -----
From: "John Rabson" <[email protected]>
To: <[email protected]>
Cc: "Robin Gape" <[email protected]>
Sent: Wednesday, July 06, 2011 7:21 PM
Subject: LF: Circuit Analysis Programs
I am experimenting with various forms of matching network to go between my
136kHz antenna and the transmitter. It would be very handy if I had a fairly
simple circuit analysis program with which to do the following:
Having measured the input impedance to the combined matching unit and antenna,
then “subtract” the components of the matching network, see what I get and
compare it with what I actually measure. I'm not always convinced that what I
measure is what I think I'm measuring.
Platforms available: XP, Linux and MacOs X.
Yes, I could write something, but somebody must have done this and there is no
point in reinventing the wheel.
Any suggestions, please?
Regards
John F5VLF
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