Thomas wrote:


What about free versions of the NEC code?

I am interested in modeling a helically wound antenna and so need a lot
of segments.

Thanks.

Thomas

For free packages, I find the 4nec2 program amongst the most powerful
and easy to use. You can download it from the NEC Archives at
http://www.qsl.net/wb6tpu/swindex.html

It has most, if not all, of the features of many of the commercial
packages plus a few that they don't have. I believe the NEC2 engine
underlying the gui is set up to handle up to 11,000 segments.


-Ray WB6TPU