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What did you use to calculate the spacing Gary? IIRC maximum gain occurs with wide spacing up to 0.25 wavelengths. At 11m that would be over 8 feet which is truly too wide considering a much shorter boom will be easier to manage and have only a fraction of a dB less gain. IRC most commercial quads had spacing in the range of 60-66 inches so you are not far off. Admittedly I have never build a quad for 11m other than assemble the old Hygain two element quad. My quad experience has been on 6m/2m/70cm.

[QUOTE="Captain Kilowatt, post: 682164, member: 39"] What did you use to calculate the spacing Gary? IIRC maximum gain occurs with wide spacing up to 0.25 wavelengths. At 11m that would be over 8 feet which is truly too wide considering a much shorter boom will be easier to manage and have only a fraction of a dB less gain. IRC most commercial quads had spacing in the range of 60-66 inches so you are not far off. Admittedly I have never build a quad for 11m other than assemble the old Hygain two element quad. My quad experience has been on 6m/2m/70cm. [/QUOTE]

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