Was the antenna installed with pulleys and a weight on one end? Any
antenna rigged between trees without that method WILL be on the ground
when the wind blows hard.
I use Synthetic Textiles antenna rope sold by several ham vendors. It's
good stuff, but the outer jacket of the 5/16-in rope eventually frays
and breaks where it goes through the pulleys, and must be replaced. I've
gone to the 7/16-in rope for my high dipoles between redwoods. In this
rope, the strength is the interior white rope, while the black outer
jacket protects it from UV.
73, Jim K9YC
On 4/19/2019 5:04 AM, N4ZR wrote:
It was held up by a 70-foot pine tree, and my guess is that either the
wind caused it to be over-stressed or chafing against branches caused
it to fail.
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