Roy Lewallen wrote:
I'm looking for a Windows-based program that runs on a local machine
rather than remotely as at a web site.

Somebody tell Roy that Robert Lay, W9DMK, has a
SMARTSMITH program that may or may not be what
he is looking for and may or may not be
EZNEC compatible.

http://www.qsl.net/w9dmk/
--
73, Cecil http://www.w5dxp.com

On Thu, 12 Apr 2007 11:25:45 -0700, Roy Lewallen wrote:

I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Roy
Here is the URL for WinSMITH from Sci Tech Publishing at $125 their price.
Dave Foreman

http://www.scitechpub.com/WinSmith.htm


winSMITH 2.0 automates the graphical solution of transmission line and lumped
element matching networks. It is also an excellent training aid for RF and
microwave circuit design.

The power of the Smith chart is the ability to present complex data visually,
making possible informed judgments regarding transmission line systems, measured
data, antennas, matching and other networks.

winSMITH simplifies the process by replacing the paper chart, a pencil, compass
(and eraser!) with computerized screen graphics. It offers the speed, accuracy,
and repeatability provided by the personal computer and instantaneous data
readout in multiple formats. This program is for Windows 98 and XP.

Thanks, everyone, for the info. I'm surprised and glad to see that
WinSMITH is available again. It was offered first by its publisher,
Noble, then later by the ARRL. I'm quite sure there was a period after
the ARRL dropped it when it wasn't available. There are some things
about it I and others don't like, particularly the 15 step limit to
imported impedance data. But EZNEC currently writes files compatible
with the "current" (1998) version of WinSMITH. It's apparent, though,
that it won't be updated, so it's a good idea to locate a substitute
anyway. I've downloaded the Swiss program and will look over the others
you've been kind enough to recommend. Thanks again.

Roy Lewallen, W7EL

In rec.radio.amateur.antenna Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like.

Try QUCS:

http://qucs.sourceforge.net/

I have used it to help in the design of RF matching circuits. It accepts
S-parameter model input, and depicts sim results on a Smith chart.

Take care,
-Chris

--
| Christopher Cole, Cole Design and Development |
| Embedded Electronics and Software Design http://coledd.com |

"K7ITM" wrote in message
ups.com...
Additional comment: if you write impedance files in standard network
analyzer format, they can be used by a lot of programs.

Good idea Tom. Roy: Besides RFSim99, Agilent's free AppCAD program has a
mode where it can overlay a set of data on a Smith chart, having read it
from the Touchstone ("standard network analyzer format") files.