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Can I avoid routing the antenna coax along the foam surface?

April 26, 2017antenna avoid coax foam routing

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Can I avoid routing the antenna coax along the foam surface?

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Yes. One builder describes how to drill the winglet about 1 inch from the leading edge, then feed the coax through the hole. A second hole is drilled from the balun area to intersect the first hole and the coax is snagged with stiff steel wire. In the case of a NAV antenna in the wing a hole is drilled from the balun to the electrical conduit.