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General Forums => Antennas => : K7JEB June 04, 2013, 08:36:11 PM

: Smith Chart and NEC Links
: K7JEB June 04, 2013, 08:36:11 PM

I was asked by KD6GN for Smith Chart info. 
Here is the e-mail message I sent him.
I thought other participants here would be interested.... 
Jim, K7JEB
----------------------
Here's the website for JJSmith, the Smith chart program
I had a hand in writing.  First is the top-level page
for Tonne Software, an enterprise by my good friend
Jim Tonne, W4ENE:

  http://www.tonnesoftware.com/

And here's the link to the program download page:

  http://www.tonnesoftware.com/jjsmith.html



Here are some other websites that I've found have
interesting info on them:


 http://www.amanogawa.com/archive/transmissionA.html

This website requires Java to run, but is very
"animated".


http://www.ae6ty.com/Smith_Charts.html

This is another Java-enabled on-line Smith Chart
calculator.


 http://home.roadrunner.com/~w4fal/FrankLynch/reference.html

This is the "Smith Chart Society Reference Page"
There's some good info on it and some hi-resolution
PDF's of the Chart.


http://www.edn.com/ContentEETimes/Documents/Tools_EDN_Smith_Chart.pdf

This is a nice PDF of the Chart, suitable for printing.


http://www.edn.com/design/design-tools/development-kits/4373834/Smith-chart-and-how-to-use-it

This is a basic tutorial, an easy read.


http://www.tmworld.com/electronics-news/4384297/How-does-a-Smith-chart-work-

Another tutorial, a bit more advanced and mathematical.


http://vk1od.net/transmissionline/index.htm

A plethora of articles from VK1OD.


http://www.printfreegraphpaper.com/gp/smith.pdf

Another printable Smith Chart in PDF format.


We spoke of the antenna analysis programs based on NEC-2.
Here are the websites:


http://www.eznec.com/

This is the website for the EZNEC program written
by Roy Lewallen, W7EL.  It's worth a look-see and
perhaps downloading his free, trial version.


http://www.qsl.net/4nec2/

This is Arie Voors' website for his 4NEC2 program.
It's worth a bit of exploration as well.  4NEC2
is free, and capable of handling very large designs.
It is a bit harder to use than EZNEC, but also
closer to the "bare metal" of the NEC-2 code.

: Re: Smith Chart and NEC Links
: KE7TRP June 05, 2013, 07:56:11 AM

Jim thanks for the post!  When I have time today, I am going to study the links and software. 

C