Jazzsinger, I disagree that a proper 5/8 wave GP will blow away an Imax without radials, based on the typical Internet report. The GP may show a slightly better signal in some cases maybe, but blow it away...is like an Alice in Wonderland fantasy. I wish I have done a video of this test, but that was before I got my camera, that showed the forum some of my tests.
I didn't test my Imax with one of my 5/8 wave ground planes, the only test I did using my Imax was compared to my new Gain Master last year right after I got it up and working.
If I had allowed any personal bias into this comparison at the time, it would likely have been in favor of my brand new GM, plus I've always said I didn't particularly like my Imax, so I don't see any bias that favors either?
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I posted the only other evidence I have, a group of 4 Eznec models, that suggest, again, that you might be wrong making such a bigggggggg claim as noted above.
If you have a video, an anecdotal link by another comparison on the Internet, or an article from a reputed big dog in antenna work that proves or suggest that you're right, then I would like to see it if you could provide link(s). I would even like to see some evidence of your own testing of an Imax vs. 5/8 wave ground plane, that supports your claim...besides just your words.
Here are my models showing an Imax without radials, both isolated and not, at 40' feet high. Next are models of the same antenna with 4 x 8.5' ground plane radials, isolated and not, at 40' feet high. These are over Eznec's real Earth feature.
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