This turned up to be a known bug - according to the Antennavis package
TODO file:
KNOWN BUGS:
...
- I think the axes are screwed up; in trying to do multiple .nec input
files, something got changed, and all RF patterns are 90 degrees CW or CCW
(I forget) from where they should be.
.
Anyone had a chance to confirm/reject this bug?
I believe visualization from antennavis is incorrect.
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https://bugs.launchpad.net/bugs/1083301
Title:
wrong vis. routine: single dipole n
** Changed in: antennavis (Ubuntu)
Assignee: (unassigned) => Bohumir Jelinek (bohumir)
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https://bugs.launchpad.net/bugs/1083301
Title:
wrong vis. routine: single dipole
Could someone please check if my statements make sense?
I will be glad to explain if something is not clear.
Thanks,
-Bohumir
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Title:
wrong vis
To clarify why the fix is needed, I suggest this temporary code
change:
In the "WriteCardFile" function, "pccard.c" file line 321, replace
this line:
increment, increment, step_size, step_size);
by this line:
3, 10, 5, 5);
That will calculate and plot antenna gain for only 3 theta an
** Attachment added: "Input file to compare Antenavis output with "xnec2c",
showing the bug and correctness of the fix."
https://bugs.launchpad.net/ubuntu/+source/antennavis/+bug/1083301/+attachment/3449529/+files/D12K6_190.nec
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Dear Antennavis maintainers (or upstream developers),
I tested my fix with many input files. It corrects the visualization
issue.
Try e.g. the attached input file. As you Load "D12K6_190.nec" and click
on "Compute RF Field", those side lobes of radiation pattern should
point dominantly in "up" an
Public bug reported:
Dear Antennavis maintainers,
I am Bohumir, co-author of http://yagi-logper.sourceforge.net/.
Thanks for maintaining antennavis package. I am fond of antennavis.
I believe I found a small bug in the antennavis visualization routines.
It appears, for example, when you give Ant
