This model shows several notable issues in modeling.
1. Shows the Eznec Control Center (CS) screen and it also shows the Free Space model that I start with when modeling the Real Earth model I hope to make accurately. This CS image shows the Average Gain Test results = 1.001, a perfect result, and it indicates accuracy for the model. If I start with this model and I don't mess with the dimensions, then the Real Earth new model should also be accurate. Average Gain located on the bottom line in the image.
This test indicates several technical things, but in General, it shows the modeler that the structure of the model and the location of the source is accurate.
2. Here is the new S4 model with a gamma match that effectively corrects this model's mismatch.
The ground type characteristic is set to Average Soil.
3. The DB reports that the gamma match on his Vector model has to have a short extension located above the dog bond connection. See wire #9 in my new model above. I modeled my S4 with this extension included, but I wanted to see if I could remove this part of the gamma and the antenna still work. So, I did another model and removed wire #9. This model shows this does not prevent me tuning the model or getting a good match.
Note: this said however, DB's Vector model is a bit different, so that has to be considered. I will have to check this with one of my New Vector 4000 models too.
4. This last image is my Eznec notes suggesting DB re-check his model
