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OK but I don't see a need for that top hat. To me it's just losing 10" of vertical length and adding wind load. If someone is going to run a million watts then a simple ball on top about 2"-3" in diameter would work fine and eliminate the sharp edges of the cross top hat. The Maco, Workman, Gainmaster, Imax, A99 and sigma 5/8 don't have a top hat and they seem to work fine.
Maybe I'll spend some cash and learn to upload you-tube videos and try an I10k at 1/2 wave, 19.5', .625 and .64 just to see what difference the lengths make in performance to different stations at different distances. Now that I think about it, that antenna is made for testing which length works best for certain distances.
I wonder if Jay ever tried and tested it at .64?

[QUOTE="Needle Bender, post: 343739, member: 13339"] OK but I don't see a need for that top hat. To me it's just losing 10" of vertical length and adding wind load. If someone is going to run a million watts then a simple ball on top about 2"-3" in diameter would work fine and eliminate the sharp edges of the cross top hat. The Maco, Workman, Gainmaster, Imax, A99 and sigma 5/8 don't have a top hat and they seem to work fine. Maybe I'll spend some cash and learn to upload you-tube videos and try an I10k at 1/2 wave, 19.5', .625 and .64 just to see what difference the lengths make in performance to different stations at different distances. Now that I think about it, that antenna is made for testing which length works best for certain distances. I wonder if Jay ever tried and tested it at .64? [/QUOTE]

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