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I don't own one but the theory should be fairly consistent across the board, I use the M Squared formula 11803 / freq(mhz) x .625 then I subtract the average circumference of the radiator and that usually gets me a 1:1 with very low reactance if any.

11803/27.2=433.95 x .625=271.25-13(top hat)-2.5"(average circumference)=255.75" for .625+6.5"=262.25" for .64 but I thought the top hat was 13". Add an inch if it's only 12" and our measurements are within 5/8".

I remember reading on a forum about someone who had an I10k and got better performance around 100 miles away by extending it to .64 and I was hoping you would try it for a few days to see if you noticed anything.

[QUOTE="Needle Bender, post: 343657, member: 13339"] I don't own one but the theory should be fairly consistent across the board, I use the M Squared formula 11803 / freq(mhz) x .625 then I subtract the average circumference of the radiator and that usually gets me a 1:1 with very low reactance if any. 11803/27.2=433.95 x .625=271.25-13(top hat)-2.5"(average circumference)=255.75" for .625+6.5"=262.25" for .64 but I thought the top hat was 13". Add an inch if it's only 12" and our measurements are within 5/8". I remember reading on a forum about someone who had an I10k and got better performance around 100 miles away by extending it to .64 and I was hoping you would try it for a few days to see if [B][I]you [/I][/B]noticed anything. [/QUOTE]

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