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Old August 11th 10, 05:03 PM posted to rec.radio.amateur.antenna
K1TTT K1TTT is offline
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First recorded activity by RadioBanter: Apr 2010
Posts: 484
Default vemsa3d 1.1 - a floss visual em simulator for 3d antennas

On Aug 11, 1:10*pm, John Smith wrote:
On 8/10/2010 5:39 PM, wrote:



-
* *source
* *158 KB
* *VEMSA3D_source_11.zip
* *http://rga.googlecode.com/files/VEMSA3D_source_11.zip


* *exe standalone
* *971 KB
* *VEMSA3D_exe_standalone_11.zip
* *http://rga.googlecode.com/files/VEMS...ndalone_11.zip


* *vemsa3d all downloads:
* *http://code.google.com/p/rga/downloads/list


* *A FLOSS Visual EM Simulator for 3D Antennas
* *http://arxiv.org/abs/1006.0031


* *The RGA project:
* *http://code.google.com/p/rga/


* *Petros SV7BAX
* *Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU
* *-Not-for-Profit-


Well, that certainly allows "the little guy" to view the code and
extract the important parameters, math and formulas so that they can
construct their own specialized tools! *Just a bit of understanding how
math is defined by a computer language and you are good-to-go.

Regards,
JS


DANGER WILL ROBINSON!!! a 'bit of understanding' in this case could
lead to totally incorrect results. be sure you thoroughly understand
the limitations of the 'thin polygonal wire' model and any earth model
they are using. it is likely this will have lots of undocumented
limitations. also i worry about their claim of comparing to other
freeware results, do they only build models for comparison that are
well represented in both tools? and do they understand the
limitations of what they are comparing to?