For EZNEC v. 6.0 users, maintenance update v. 6.0.26 is now available. See http://eznec.com/Updates60.html and http://eznec.com/ez60updates/index.html == For EZNEC v. 5.0 users, maintenance update v.
Like this: https://forums.qrz.com/index.php?attachments/upload_2020-6-8_6-33-57-png.670446/ https://forums.qrz.com/index.php?threads/single-ground-radial-wire-placed-beneath-a-dipole-how-effective-is
See https://i.imgur.com/aXqmRJm.png As Jim Lux mentioned there is a slight difference in the calculated feedpoint impedance at resonance (jX=0) but the Gain (dBi) values are almost identical. Also se
A few years ago I did a little EZNEC study on that. Details here (Reply #16): https://forums.qrz.com/index.php?threads/touching-the-antenna-during-transmission.556342/page-2#post-4157410 Dan, AC6LA _
The NEC-5 release does not include source code, at least not yet. Not sure if that might change in the future. The download package (zip file) includes Windows executable files. The zip also has a se
See https://eznec.com/nec-5.htm Dan, AC6LA _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://list
If you've purchased a NEC-5 license and downloaded the NEC-5 package prior to today you might want to do the download again. The missing "NEC5GI Users Manual.pdf" manual for the "Graphical Interface"
For a detailed modeling look at that see "Stubs for Harmonic Suppression" here: https://ac6la.com/aetltu.html#Part6 Dan, AC6LA _______________________________________________ ________________________
As an alternative to DIY Excel plotting, and if you are willing to download and install the ITS HF Propagation package ( http://greg-hand.com/hfwin32.html ), that package has a utility program called
Here's another QRZ thread on the same subject: https://forums.qrz.com/index.php?threads/greyline-performance-antennas-apalling-service-and-customer-support.666291/ That thread is now up to 18 pages.
For those who enjoy modeling here's a little study that was done several years ago: https://forums.qrz.com/index.php?threads/modeling-the-new-force-12-ocf-vertical-dipole-with-tuners.536789/ AutoEZ a
Details along with several illustrations here: https://forums.qrz.com/index.php?threads/seeing-the-effects-of-local-terrain-on-radiation-patterns.733041/ Many thanks to TowerTalkers AC0C and N7WS for
Here's an additional study based partly on Jim's work: https://ac6la.com/aecollection5.html#19 Dan, AC6LA _______________________________________________ _____________________________________________
KN5L has made some nice measurements of window line using the technique shown here: https://www.kn5l.net/wm553/DXE-LL300/ For the results of using KN5L's OC/SC sweep files to calculate matched line l
... how about a short tower on a tall hill? Full details here: https://forums.qrz.com/index.php?threads/seeing-the-effects-of-local-terrain-on-radiation-patterns.733041/page-2#post-5698811 If that li
Thanks for the NCJ link, Jim. And speaking of K6OIK, he recently did a review of HOBBIES for QEX: https://www.fars.k6ya.org/docs/Stearns_K6OIK,_HOBBIES_Software_for_Computational_Electromagnetics,_QE
Oops. Here's the entire post, unabridged this time. KN5L has made some nice measurements of window line using the technique shown here: https://www.kn5l.net/wm553/DXE-LL300/ For the results of using
Detailed discussion and lots of illustrations here: https://forums.qrz.com/index.php?threads/modeling-the-oh1tv-opposite-voltage-feed-system-for-phased-arrays.742602/ Dan, AC6LA _____________________
Yeah, I kinda glossed over that. The model does not "calculate" the mutual impedances directly but the mutual coupling is taken into account. The model is first configured with two separate "current"