[Antennaware] model sources

[Paul Decker]

Hi group, 



I use EZ-NEC 5.0, but I'm wondering what the different sources mean and when they should be used.  For example there is a selection for I, V, SI and SV .   Over the past few years I have been using them mostly interchangeably without seeing any differences in the the results.   Now I have built a model where I see dramatic difference between using I sources vs. using V sources, so I'm interested in what the different sources mean. 



thanks and 73, 
Paul (KG7HF)