[TowerTalk] 40m 4el KLM - replacing linear loading with coils

[Dan Maguire]

K6STI wrote:
>>> This describes an interesting trick for 40m Yagis:

>>> http://ham-radio.com/k6sti/owa.htm

Here are the four AO (.ant) models described on the above page
converted to AutoEZ (.weq) format, with the AO variable names used in
Brian's models converted to AutoEZ variables:

https://ac6la.com/adhoc/K6STI-Enhanced-OWA.zip

The original .ant files are included just for reference.  AutoEZ can
read .ant files, with some restrictions; for these four it took a bit
of post-processing to clean things up.

For the first model ("Enhanced OWA") here are comparisons of Gain and SWR:

https://i.imgur.com/SwP4yOA.png

https://i.imgur.com/mqQBUUg.png

Folks who enjoy messing around with antenna modeling may wish to use
the AutoEZ optimizer in an attempt to improve on the design goals that
Brian mentioned.  That may or may not be possible!  :-)

AutoEZ home page:  https://ac6la.com/autoez.html

Dan, AC6LA