The EZNEC insulation modeling method is basically similar to that used
by NEC-4, but different. The accuracy is comparable. Both programs
(EZNEC and NEC-4) are accurate only for thin layers of material with
relatively low conductivity and permittivity, i.e., like typical wire
insulation. But since the typical change in effective wire length is
only on the order of 3% or so, high accuracy isn't required.

I believe I recall your mentioning a multi-turn loop in an earlier
posting. The insulation feature in these programs doesn't model the
effect of insulation between wires, which might be an important factor
for a multi-turn loop. It only models the effect of the insulation on
the wire's self impedance. So use with care.

Roy Lewallen, W7EL

Owen Duffy wrote:
Roy Lewallen wrote in news:130125qpgle3i23
@corp.supernews.com:

Owen Duffy wrote:
My version of EZNEC (a pay for version) appears not to model insulation.
You have v. 3.0. Wire insulation was one of the features added at v. 4.0.

Yes, that is correct.

Where V4 uses the NEC2 engine, is insulation modelled the same way as in
NEC4? If not, is the accuracy comparable?

Owen