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Old December 7th 04, 12:55 PM
 
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Default New version 4nec2 freeware antenna optimizer

Hello...,

for those interested, just released the latest 5.4.1 new version for
the freeware 4nec2 antenna visualizer and optimizer.
(see http://www.si-list.org/swindex2.html and look for 4nec2)

With this the below new features are now availble for use:

- Batch processing for automatic testing and calculation of multiple
(4)Nec2 files.
- Extensive Nec-2 segment- en geometry validation, such as:
Intersecting volumes, Short/thick wires at sharp angle, Unequal
segmentation for parallel wires, Too low hight, Large radius or
length changes at junctions, etc.
- Screen grabber for easy cut/paste and print or save parts of the
screen/window/form.
- Automatic convergence-testing function with line-chart result
display.
- Enhanced variable-sweeper function for more easy use.
- Automatic generation of L, Pi and T matching-networks (low- and
high-pass)
- Plot 2D and 3D graphs/charts using gnuplot freeware package
- Show Circular Polarization components for the far-field.
- Switchable Eznec- or traditional-style current display.
- Use of Insulated-Wires and 'LC-trap' loading-types.
- Updated build.exe to avoid unconnected or overlapping wires

For those not (yet) familiar with the 4nec2 package below some of the
other 4nec2 'highlights':

- Drawing style geometry editor to assist the starting antenne
modeller.
- Graphical 3D visualization of Far- and Near-field data and antenna
strutures
- Line-chart visualization for freq-sweep Gain, F/B, F/R, SWR and
impedance data.
- Full Nec-2 command support, including GX, GM, GR, GA, GH and
surface patches.
- Support for inclusion of surface-wave in far-field data.
- Variable substitution included for complete Nec-2 command set.
- Sophisticated real-time 3D viewer showing real wire-radius for
modern-computers
- Capable of using the max of 2Gb of windows on-board memory
(appr. 11000 segs)
- Interactive Smith chart visualization for freq-sweeps
- AO-style gradient/hill-climbing optimizer included.
- Genetic Algorithms based optimizer included.
- Automatic variable sweeper included.
- Integrated Sommerfeld ground calculations.
- Running on all systems from early Windows-95 to latest Windows-XP
- Context sensitive Help-file.
- Completely free.

Arie.

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Old December 7th 04, 01:37 PM
Frank
 
Posts: n/a
Default

Is 5.4.1 a stand-alone version? What is 4nec2X541.zip? Is anybody working
on a free Windows version of NEC4 (Providing you obtain the appropriate
license from Lawrence Livermore)?

Regards,

Frank


wrote in message
om...
Hello...,

for those interested, just released the latest 5.4.1 new version for
the freeware 4nec2 antenna visualizer and optimizer.
(see http://www.si-list.org/swindex2.html and look for 4nec2)

With this the below new features are now availble for use:

- Batch processing for automatic testing and calculation of multiple
(4)Nec2 files.
- Extensive Nec-2 segment- en geometry validation, such as:
Intersecting volumes, Short/thick wires at sharp angle, Unequal
segmentation for parallel wires, Too low hight, Large radius or
length changes at junctions, etc.
- Screen grabber for easy cut/paste and print or save parts of the
screen/window/form.
- Automatic convergence-testing function with line-chart result
display.
- Enhanced variable-sweeper function for more easy use.
- Automatic generation of L, Pi and T matching-networks (low- and
high-pass)
- Plot 2D and 3D graphs/charts using gnuplot freeware package
- Show Circular Polarization components for the far-field.
- Switchable Eznec- or traditional-style current display.
- Use of Insulated-Wires and 'LC-trap' loading-types.
- Updated build.exe to avoid unconnected or overlapping wires

For those not (yet) familiar with the 4nec2 package below some of the
other 4nec2 'highlights':

- Drawing style geometry editor to assist the starting antenne
modeller.
- Graphical 3D visualization of Far- and Near-field data and antenna
strutures
- Line-chart visualization for freq-sweep Gain, F/B, F/R, SWR and
impedance data.
- Full Nec-2 command support, including GX, GM, GR, GA, GH and
surface patches.
- Support for inclusion of surface-wave in far-field data.
- Variable substitution included for complete Nec-2 command set.
- Sophisticated real-time 3D viewer showing real wire-radius for
modern-computers
- Capable of using the max of 2Gb of windows on-board memory
(appr. 11000 segs)
- Interactive Smith chart visualization for freq-sweeps
- AO-style gradient/hill-climbing optimizer included.
- Genetic Algorithms based optimizer included.
- Automatic variable sweeper included.
- Integrated Sommerfeld ground calculations.
- Running on all systems from early Windows-95 to latest Windows-XP
- Context sensitive Help-file.
- Completely free.

Arie.



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Old December 7th 04, 03:55 PM
Dan Richardson
 
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Default

On Tue, 07 Dec 2004 13:37:31 GMT, "Frank"
wrote:

Is 5.4.1 a stand-alone version?


Yes

What is 4nec2X541.zip?


It is explained on the download page Arie gave.

Is anybody working
on a free Windows version of NEC4 (Providing you obtain the appropriate
license from Lawrence Livermore)?


If you have purchased a license then you were provided with a copy of
NEC4 so that question is moot.

Danny, K6MHE

Regards,

Frank


wrote in message
. com...
Hello...,

for those interested, just released the latest 5.4.1 new version for
the freeware 4nec2 antenna visualizer and optimizer.
(see http://www.si-list.org/swindex2.html and look for 4nec2)

[SINP]
Arie.



  #4   Report Post  
Old December 7th 04, 04:51 PM
Frank
 
Posts: n/a
Default

Thanks for the info. I was thinking in terms of Nittany Scientifics GNEC, a
NEC4 based program. Did not realize if I get a license I would also get a
copy of NEC4.

Regards,

Frank


"Dan Richardson" wrote in message
...
On Tue, 07 Dec 2004 13:37:31 GMT, "Frank"
wrote:

Is 5.4.1 a stand-alone version?


Yes

What is 4nec2X541.zip?


It is explained on the download page Arie gave.

Is anybody working
on a free Windows version of NEC4 (Providing you obtain the appropriate
license from Lawrence Livermore)?


If you have purchased a license then you were provided with a copy of
NEC4 so that question is moot.

Danny, K6MHE

Regards,

Frank


wrote in message
.com...
Hello...,

for those interested, just released the latest 5.4.1 new version for
the freeware 4nec2 antenna visualizer and optimizer.
(see http://www.si-list.org/swindex2.html and look for 4nec2)

[SINP]
Arie.





  #5   Report Post  
Old December 9th 04, 04:38 AM
Frank
 
Posts: n/a
Default

If you have purchased a license then you were provided with a copy of
NEC4 so that question is moot.

Danny, K6MHE


You either have a license for NEC4 or not; you would know.Listen to Danny
(hello OM!)

73,
Chip N1IR


No, do not have license, or GNEC. Just thinking about upgrading to NEC4.

73,

Frank




  #6   Report Post  
Old December 9th 04, 11:39 AM
Roy Lewallen
 
Posts: n/a
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For information about obtaining an NEC-4 license, see
http://www.llnl.gov/IPandC/technolog...titles/nec.php.

Roy Lewallen, W7EL

Frank wrote:


No, do not have license, or GNEC. Just thinking about upgrading to NEC4.

  #7   Report Post  
Old December 9th 04, 03:24 PM
Frank
 
Posts: n/a
Default

Thanks for the info Roy.

Regards,

Frank

"Roy Lewallen" wrote in message
...
For information about obtaining an NEC-4 license, see
http://www.llnl.gov/IPandC/technolog...titles/nec.php.

Roy Lewallen, W7EL

Frank wrote:


No, do not have license, or GNEC. Just thinking about upgrading to NEC4.





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