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![]() "Ed" wrote I have two nice 100'+ trees between which it would be quite easy to install a dipole..... whether it be folded or standard depends on the comments I receive from you guys on the low noise characteristic I am questioning. Ed K7AAT Ed. if you let the ends of the dipole be the high points and avoid the inverted-vee (skip the temptation for a little wider bandwidth of the vee, it comes at some expense of optimum dipole performance and low noise of a real dipole) you should be very happy with new antenna. I too use nearly 100' trees and achieve between 1/4~ and 1/2~ elevation for the 60-70 meter bandwidth. I stopped at that height only because it was a point at which the tree trunks exhibited very little movement. With a 125' span between them, that was important! Higher would be better, but probably not survive high winds either. 3/16" milspec dacron holds a balun (supported only from both ends), the antenna copper, and all 60-odd feet of RG-8X feedline under it with no problem. I use kevlar standing rigging to hold the blocks of the running rigging for this antenna. This allows more flexibility than if the main horizontal support line made a bight over each tree limb at its two ends. It has survived two hurricanes, many Nor'Easters and a lot of ice as well. Not too many locales have all those extremes ;-) 73, Jack Painter Virginia Beach, Virginia |
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