Re: gEDA-user: Antenna Simulation
On 4/19/07, DJ Delorie <[EMAIL PROTECTED]> wrote: > Am I getting all the bad luck? First I couldn't get into DJ's site, Not getting into my site wasn't *your* bad luck! Worst luck I've heard of so far - river washed away one family's whole yard, leaving their septic system fully exposed. Is that what you would call "tough shit"? -- Svenn ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Antenna Simulation
On Thu, 19 Apr 2007 22:27:29 +0200 Stefan Dröge <[EMAIL PROTECTED]> wrote: > > I have no problem at accessing the site. > > Stefan Thanks Stefan. I accessed the site through an anonymizer and had no problem. Probably some countries are blocked at that server. John ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Antenna Simulation
On Thu, 19 Apr 2007 16:09:58 -0400 DJ Delorie <[EMAIL PROTECTED]> wrote: > Not getting into my site wasn't *your* bad luck! Yes... Of course I should've chosen my words a bit more carefully. My apologies! John ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Antenna Simulation
John Coppens schrieb:
> On Thu, 19 Apr 2007 11:51:02 +0200
> Wojciech Kazubski <[EMAIL PROTECTED]> wrote:
>
>> Hello!
>> Try xnec2c by Neoklis ("Nick") 5B4AZ:
>> http://5b4az.chronos.org.uk/pages/nec2.html
>>
>> Wojciech Kazubski
>
> Am I getting all the bad luck? First I couldn't get into DJ's site, now
> chronos.org.uk seems to be down. Ping works, but no http:// access.
> Anyone can open the page?
>
> John
I have no problem at accessing the site.
Stefan
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Re: gEDA-user: Antenna Simulation
> Am I getting all the bad luck? First I couldn't get into DJ's site, Not getting into my site wasn't *your* bad luck! Worst luck I've heard of so far - river washed away one family's whole yard, leaving their septic system fully exposed. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Antenna Simulation
On Thu, 19 Apr 2007 11:51:02 +0200
Wojciech Kazubski <[EMAIL PROTECTED]> wrote:
> Hello!
> Try xnec2c by Neoklis ("Nick") 5B4AZ:
> http://5b4az.chronos.org.uk/pages/nec2.html
>
> Wojciech Kazubski
Am I getting all the bad luck? First I couldn't get into DJ's site, now
chronos.org.uk seems to be down. Ping works, but no http:// access.
Anyone can open the page?
John
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Re: gEDA-user: Antenna Simulation
Dave N6NZ wrote: > Don't know of one for Linux. But in my experience, a graphical editor > for NEC isn't of great value anyway. The amounts that the wire lengths > are changing while you are tuning antennas is too small relative to the > rest of the structure and to the screen size. > > What *is* useful is symbolic expressions in wire lists, so that specific > points in space can be given names. Makes it much easier to move a wire > joint, since by changing the X/Y/Z values for one point all the > associated wire dimensions are adjusted. Brian Beezley's old AO and YO > programs did that, and it was very convenient. I've often thought that > a simple text-to-text preprocessor that resolved symbolic expressions > would be very useful. > > -dave > > Stefan Dröge wrote: >> Hi, I'm searching for a graphical editor for antennas that produces >> input files for NEC (for those that don't know NEC: >> http://en.wikipedia.org/wiki/Numerical_Electromagnetics_Code). >> So it doesn't have to be a special antenna construction program, it >> just has to put out files in NEC format. >> I tried to run 4nec2 with wine under linux, but its so slow in the >> geometry editor that its not usable. >> >> Any ideas? >> >> Greetings, Stefan I agree to you when the antenna geometry is simple, but for complex geometries like cars, or airplanes it is very confusing when you look on hundreds of lines of code. Stefan ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Antenna Simulation
Wojciech Kazubski wrote:
> Hello!
> Try xnec2c by Neoklis ("Nick") 5B4AZ:
> http://5b4az.chronos.org.uk/pages/nec2.html
>
> Wojciech Kazubski
>
Ah, nice program. It is not exactly what I've wanted, but its a huge
improvement compared to a simple texteditor. For those who want to use it, I
recommend to do a "export LC_NUMERIC=C" before starting the program.
I wondered first why a yagi had a radiation pattern like a star ;-) but then I
remembered that in earlier versions of the program "gpsview" it showed me the
wrong position on the map, and that was in cause of we use in germany a ","
instead of a "." as decimal seperator. With LC_NUMERIC you change this to use a
"." as a decimal seperator for the time you run the program. xnec2c has the
same bug.
Thanks Wojciech!
Greetings, Stefan
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Re: gEDA-user: Antenna Simulation
Hello!
Try xnec2c by Neoklis ("Nick") 5B4AZ:
http://5b4az.chronos.org.uk/pages/nec2.html
Wojciech Kazubski
> Hi, I'm searching for a graphical editor for antennas that produces input
> files for NEC (for those that don't know NEC:
> http://en.wikipedia.org/wiki/Numerical_Electromagnetics_Code).
> So it doesn't have to be a special antenna construction program, it just has
> to put out files in NEC format.
> I tried to run 4nec2 with wine under linux, but its so slow in the geometry
> editor that its not usable.
>
> Any ideas?
>
> Greetings, Stefan
>
>
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Re: gEDA-user: Antenna Simulation
Don't know of one for Linux. But in my experience, a graphical editor for NEC isn't of great value anyway. The amounts that the wire lengths are changing while you are tuning antennas is too small relative to the rest of the structure and to the screen size. What *is* useful is symbolic expressions in wire lists, so that specific points in space can be given names. Makes it much easier to move a wire joint, since by changing the X/Y/Z values for one point all the associated wire dimensions are adjusted. Brian Beezley's old AO and YO programs did that, and it was very convenient. I've often thought that a simple text-to-text preprocessor that resolved symbolic expressions would be very useful. -dave Stefan Dröge wrote: Hi, I'm searching for a graphical editor for antennas that produces input files for NEC (for those that don't know NEC: http://en.wikipedia.org/wiki/Numerical_Electromagnetics_Code). So it doesn't have to be a special antenna construction program, it just has to put out files in NEC format. I tried to run 4nec2 with wine under linux, but its so slow in the geometry editor that its not usable. Any ideas? Greetings, Stefan ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Antenna Simulation
Hi, I'm searching for a graphical editor for antennas that produces input files for NEC (for those that don't know NEC: http://en.wikipedia.org/wiki/Numerical_Electromagnetics_Code). So it doesn't have to be a special antenna construction program, it just has to put out files in NEC format. I tried to run 4nec2 with wine under linux, but its so slow in the geometry editor that its not usable. Any ideas? Greetings, Stefan ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
