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Steve wrote:
How about coming down from the main with a 3' insulated penant, then split the twin backstays with insulators on each at the lower end of each. Using your calculation, that would give you a total length of 66ft. In my own SSB installation on my 38 ft cutter, with twin back stays, the upper insulator is only about a foot from the other rigging (and grounded twin). I haven't noticed any problem (so far). Since my backstays, run only a couple inches from my radar arch, at the lower end, I placed the lower insulator just above the arch. As I side note: I don't fully trust radio insulators (not that I have ever known of one to fail), so I like the idea of leaving the one backstay out of the potential failure equation. My main mast can stand and continue to carry full canvas, even if the insulated backstay were to fail. Just my thoughts, FWIW. Steve s/v Good Intentions The main thing for good xmission is good counterpoise. krj |
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