Hello Dave,

thanks for your hint. I know the problem with perl scripts. What I am
searching is, that no text or symbol replacement or calculating
symbols is done on your source nec file. I am searching for a compiler/
pre-processor, that makes from source file (antenna model) a
compatible nec file (still left in symbolic 4nec2-format).
I am sick off, to code many symbolic lines of nec code. It is boring
and difficult, when your model gets complex and has much more
segments.
Therefore I started with my pre-processor few month ago, that makes
the code for me automatically. It supports primitive object and
complex structures. It also let you "to program" your antenna model.
But the most advantage of letting the nec file symbolic, you can
optimize the antenna parameters.
I tried and constructed many antenna models and wont miss the
optimizer tool from 4nec2.

I am wondering, that nobody made such a tool till now.

Aziz