Roy Lewallen wrote:
Correction:

Roy Lewallen wrote:
. . .
Both NEC and EZNEC provide simple ways of generating a helical model.
. . .

NEC-4 has a built-in method for generating a helix (the GH 'card'), but
NEC-2 doesn't. I wouldn't be surprised, though, if the feature hasn't
...
Roy Lewallen, W7EL

The "paid" versions contain this, in a usable fashion, and,
begrudgingly, are worth it ... nuff said.

Regards,
JS