I have used Option 2 many times, but with the addition of the 10, 18 and 24-MHz bands at WARC-79, it's difficult to find a guy-segment length that does not resonate in at least one of the ham bands between 3.5 and 29.7 MHz. Use conductive, continuous guys with no insulators or segmentation whatsoever.įor many hams like me, Option I is often out of the question because of its cost.Use conductive guys, but break them into nonresonant segments with insulators.
Use continuous, nonconductive guy material, such as Phillystran.You have three options when constructing a guyed tower. I hope that the following analysis will dispel some of the myths about conductive guying. In contrast, I recall that, a number of years ago, the builder and owner of one of the most successful contest stations in the world, Ed Bissell, W3AU (ex-W3MSK), did not use insulator-segmented guys on some of his towers - and his signals were legendary throughout the world on all bands.Ĭontinuous, conductive guys - no segmentation, no insulators - currently support two of my nine towers, and I observe no discernible per%onm-re degradation attributable to their presence. Ham lore has long preached that tower guy wires not broken up into short, nonresonant lengths by insulators will significantly degrade the performance of antennas on the guyed tower. Now, computer modeling reveals that unbroken guys can work just about as well. Radio amateurs have long worked to preserve antenna patterns by installing segmented, nonresonant guys. Home - Techniek - Electronica - Radiotechniek - Radio amateur bladen - QST - The effect of continuous, conductive guy wires on antenna performance
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