The model is result of running the nec.opt script. The wire is 1/4 inch diameter 6061-T6 aluminum. The impedance is 300 Ohm
The charts and the 3D model are interactive. Position the cursor over a dot or a segment for info. View the model/pattern in full screen for print.
The nec model can be downloaded from here: GH4
All Gray-Hoverman designs are covered by GPL v3 or later as stated here.
Copyright 2010 Nikolay Mladenov.
nikolay dot mladenov at gmail dot com