You're right Henry, I should have worded my response about your CST project a different way. Take your time.
I have given up on trying to understand what I see regarding current and phase using Eznec.
If I'm jumping the gun here Henry, just let me know. I know you are aware that some of the discussion about how the Sigma4/Vector works pertains to the current activity in the bottom portion of that antenna. I can only assume your CST project will be exploring these currents and phase in this area. If that is not the case, then can you tell us what you think you might be able to determine?
Regarding the 4Nec2 program. Some time ago I tried to transfer a simple Eznec file into 4Nec2, but I was not successful there either.
I don't have any problems sending Eznec files out, but for me this 4Nec2 product is difficult to get an idea for how it does things and I don't seem able to find an instruction manual. I looked at a video on YouTube and the guy sounds knowledgeable enough, but he seems to skip around too much and he make key strokes that I cannot follow. I know what he does makes sense to him, but I just can't quite follow him.
I also used a instruction video using An-Sof, and I picked up what they were saying and doing right away, but they probably did that video using a professional instructor.
I copied my Eznec Wires data using the Save feature in the Wires window. I pasted these wire values to the window you noted in 4Nec2. I saved this notepad screen with a name I wanted to work with, but when I tried to open it in the 4Nec2 main window...the file did not show up in the list.
I also noticed that all the files that did show up in that list were .nec files, and I'm pretty sure the file I copied was probably a .txt file.
I then tried to save the file again as an .nec file, but that didn't seem to work either. I looked around on my computer for both the files I saved, but I have no idea where they were saved to. The way it looked at the point in time that I did the save, I thought the file was going into the proper 4Nec2 folder.
This is where I'm stuck. Whatever the problem is Henry, I'll let you know if I'm able to figure it out.
Is it possible I can use an import/export feature to do what I wish to do? I'm sill curious how these models can be exchanged or email to others as well.