Not free but the software "antenna model" looks interesting
since it does have some corrections to the MININEC code
http://www.antennamodel.com/mininec.htm
With MMANA one has to be careful due to the MININEC
code problems that hasn´t been corrected (AFAIK).
For me NEC4 is too much money, can´t justify it.
/ Jim SM2EKM
-------------------
Jim Lux wrote:
> At 06:08 PM 12/24/2006, Bob Nielsen wrote:
>> Of course, NEC4 isn't anywhere close to "free".
>
> True, but the original poster was looking for a comparison. And that
> comparison (NEC4 wasn't used in the previous comparison) might
> justify forking out the few hundred bucks for the NEC4 engine. Could
> be worse.. other codes like HFSS are even pricier, but if you need
> it, you need it.
>
>
> MMANA also (I understand from reading.. I haven't used it) uses the
> MININEC modeling code, not the NEC codes.
> There are some significant differences, particularly for antennas
> with "non thin wire" elements and ones that are "close to the ground".
>
> FWIW, I use 4nec2 as the front/back end, and both NEC2 and NEC4 back
> ends, although I've got a fair amount of one-off stuff for specific
> applications in VB, C, and Matlab that calls the NEC4 (or NEC2) backend.
>
>
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