Quote Originally Posted by Robh3606 View Post
Not so look at the conical lense. The serpentine and slat lense have minimal effect in that plane. You essentially go back to the horns directivity. Look at the directivity curve for the horn and horizontal pattern they mirror each other. They didn't plot the verticle but it would follow as the other plot does. That 22 degree and less wedge works in well with Jack quoted post.

http://www.lansingheritage.org/html/...nical/lens.htm
I noticed that the DI didn't support what I was saying, but chose to ignore it.

[O.K., I get that now.... ]

Quote Originally Posted by Robh3606 View Post
This is Deja-vu. We going back to the 4430??
Naw, it's de riguer - PT Waveguides at ZilchLab.

For a symmetrical waveguide, the little work I did with the Engebretson indicated it "promising." Maybe I'll continue some with that:

http://www.ddshorns.com/catalog.php?page=ENG190Pro

If it's good, someone should document the profile for DIY.

["Family".... ]