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I don't agree with eznic and maybe I'm wrong but it seems to me the top of the antenna with or without a top hat would see the same lowest current / highest voltage point due to the overall length, and the match & bottom 1/8 wave causing the full in-phase top 1/2 wave of current to fill the top 18' of radiator.
If it moves current up it might be because it's bringing the top lower to where the current isn't yet at the lowest point as if it's just bending the top over sideways.
If you put on a 108" top hat then you would have the highest current at the very top but the antenna would also be 108" shorter.
But that's just something else to test on the I10k at both .625 & .64 with & without the top hat. I hope you're doing your curls and military presses!
It's nice that the I10k has enough extra tubing length to go full length even with the 10" top hat removed.

<blockquote data-quote="Needle Bender" data-source="post: 343789" data-attributes="member: 13339">I don&#039;t agree with eznic and maybe I&#039;m wrong but it seems to me the top of the antenna with or without a top hat would see the same lowest current / highest voltage point due to the overall length, and the match &amp; bottom 1/8 wave causing the full in-phase top 1/2 wave of current to fill the top 18&#039; of radiator.If it moves current up it might be because it&#039;s bringing the top lower to where the current isn&#039;t yet at the lowest point as if it&#039;s just bending the top over sideways.If you put on a 108&quot; top hat then you would have the highest current at the very top but the antenna would also be 108&quot; shorter.But that&#039;s just something else to test on the I10k at both .625 &amp; .64 with &amp; without the top hat. I hope you&#039;re doing your curls and military presses!<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f631.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":ohmy:" title="Eek!&nbsp; &nbsp; :ohmy:"&nbsp; data-smilie="9"data-shortname=":ohmy:" />It&#039;s nice that the I10k has enough extra tubing length to go full length even with the 10&quot; top hat removed.</blockquote>

[QUOTE="Needle Bender, post: 343789, member: 13339"] I don't agree with eznic and maybe I'm wrong but it seems to me the top of the antenna with or without a top hat would see the same lowest current / highest voltage point due to the overall length, and the match & bottom 1/8 wave causing the full in-phase top 1/2 wave of current to fill the top 18' of radiator. If it moves current up it might be because it's bringing the top lower to where the current isn't yet at the lowest point as if it's just bending the top over sideways. If you put on a 108" top hat then you would have the[B] highest[/B] current at the [B]very top[/B] but the antenna would also be 108" shorter. But that's just something else to test on the I10k at both .625 & .64 with & without the top hat. I hope you're doing your curls and military presses!:ohmy: It's nice that the I10k has enough extra tubing length to go full length even with the 10" top hat removed. [/QUOTE]

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