New idea for presenting these Imax results.
I worked with just one model here in order to prevent my accidental use of a different model with some different data entered. That is except for the data changes made for comparison.
I only changed the height, the angle for the radials, and the length of the radials between the stock 72" inches and a full 1/4 wave set at 102" inches, or 8.5' feet. It's probably true that 105"-107" might be better with the thin wire I used, but I've been using the middle of what Bob suggested earlier at 8'-9' feet for the radials, so I just maintained that use.
I did Cebikize the model before I started, so these results may be a bit different than some previous models presented.
Hope this hand written work is legible enough. Within reason I will make some reasonable additions in case I didn't think of some aspects to consider, or in the case of errors. I also didn't save any of these models, so if I have to redo one I'll have to tweak the model and the effort could produce a little different results.
The notation under currents for good, bad, medium, were made based on my personal judgments on how much current I noted in the Antenna View, and was done because I try to keep and eye on the currents. Sometimes bad currents on the mast really add to the overall gain, and maybe on rare occassions they don't, but in this case marked with an (*) I think the gains were improved due to the bad currents I noted.
I used 65' because of the work I did the other day for Needle Bender. I also made a group at 36' & 40' feet, common install heights.
Here is what Eznec5 says about a .625 radiator like an Imax. It is not matched, and is done using Eznec's Real Earth feature.
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Wavrider, I think you see the little advantage for 72" radials that I see. Maybe that's why Solarcon made their radials 72".
