Towertalkers,
I am upgrading Cushcraft 402-CDs. The plan is to replace the stock
loading coils with high-Q coils made from 1/4 inch copper tubing.
I'd prefer to apply a low loss protective coating directly to the
copper tubing rather than construct housings for the coils.
Heat shrink tubing seemed a possible solution but finding the right
combination of UV resistance, low RF loss, and price has been
unsuccessful. (PTFE heatshrink has good properties but runs almost
$2/foot.)
Are there any low loss paints or coatings that adhere well to copper
and can withstand a north Texas environment for several years?
Any suggestions on how best to weatherproof the coils is welcome....
Steve
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Steve Miller N8SM millersg@dma.org http://www.dma.org/~millersg
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