LF: Re: Circuit Analysis Programs

To:	"RSGB LF Gp" <[email protected]>
Subject:	LF: Re: Circuit Analysis Programs
From:	"Alan Melia" <[email protected]>
Date:	Wed, 6 Jul 2011 18:46:31 +0100
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Hi John, a Smith Chart program?? have a look this simple one there are many
others. You can get a visual idea of what is happening. There is also a
simple network analysis program (ACN)
http://www.alan.melia.btinternet.co.uk/programs.htm

Alan

----- Original Message ----- 
From: "John Rabson" <[email protected]>
To: <[email protected]>
Cc: "Robin Gape" <[email protected]>
Sent: Wednesday, July 06, 2011 6:21 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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