AppCAD. Brian, I mentioned this way back when you started this plotter project.
It is now available as....
And is the old HP semiconductor group, formed AVAGO semi off shoot and now under BROADCOM.
It does more than S parameter 2 port circuit analysis and is quite worthwhile to bring into a classroom environment.
Program permits up to 6 s data files to be compared and I have used it to illustrate stability analysis on amplifiers as
I can add feedback and compare an unstable s data file with one that is stabilized.
Many features at an attractive price,,,
Alan
