Homer, I re-did these models at 36' and 16' feet. I used 16' feet to the radiator because the radials are 9' feet long and this leaves 7' feet of clearance to the Earth just to be on the safe side.
1. the patterns still remain similar to the previous models posted. Maybe these similar patterns...are surprising. I can't explain exactly why, but I assume it might be what the test idea is meant to reveal.
2. I think you were looking for the 1/4 wave pattern that was covered up by the 5/8 wave pattern, and it was not listed by name in the list of other antennas. I fixed that with the models below.
3. the previous models were all at 36' = 432" inches to the radiator. Apparently I did not think about the height back when I posted the original models. I fixed that too, and lowered them to 16' feet above ground, and again, to allow space for radials.
4. Homer, I can only speculate as to why both 1/2 waves in this group, one that is end fed, and one that is center fed, show the best gain when all that were tested were laying horizontal.
I recall a WWDX member (?) that use to frequently make the claim, "...all antennas are 1/2 wave radiators..."
