Kevlar Guy Wire?
I've got a 10-ft pole that my antenna mounts to, and it shakes just a bit in strong winds causing pixelation on the TV inside.
Steel guy wire is expensive, or more expensive than Kevlar thread which is supposed to be very strong stuff! How do you think Kevlar thread would work for guy wires? I only need 2 support wires, and each of them will be less than 20-ft in length. |
Kevlar can be as strong or stronger (per unit weight) than steel, but the down side is that it has poor UV resistance. I wouldn't recommended it for outdoor applications because you'd have to replace it regularly.
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Channel Master item number 3084 (100 feet of 20 gauge 6-strand galvanized steel wire) is available from their web site for $12.99 (link), and they have a free shipping promotion going right now. This kind of wire is only good for holding 100 pounds or so, but that should be sufficient for mast stabilization.
It's probably a lot cheaper than the typical galvanized or stainless steel "rope" you see at local hardware stores that can hold 700+ pounds and costs upwards of $1 per foot. That stuff will work too, but it's overkill for this kind of application. |
Good info. Thanks.
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A cheaper alternative that's OK with UV is black dacron rope. http://www.hamcity.com/store/pc/view...idCategory=392 |
So, whether I use Kevlar, steel or Dacron guy wire, how should I tie off this stuff?
I hear Kevlar will snap when it is bent. Steel guy wire - does that twist on itself like the ends of a wire coat hanger or would I use electrical type of crimp connections? I'm not sure what type of special material Dacron Rope is made of, but would it require anything special? |
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In most circumstances, you will need turnbuckles to apply the final tension tightening on the lines. Quote:
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Crimp on fasteners work well, but then you need to buy the crimp fittings and crimp tool to do the job. The figure-eight (or any other suitable knot) method also works, and does not require any extra tooling, however, it does require more slack at each end to allow you to tie the knot. If this kind of knot is new to you, then you might want to practice a few times in your living room until you've memorized it and also become better at judging how much slack you need at each end to complete the knot. |
So I went with the black dacron rope.
It got here, and guess what? This is the same stuff sold at Home Depot under the name Nylon Clothes Line rope. Same price, with no shipping fees. Just FYI for the group. |
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OK, so I've had this Dacron Rope installed for 3 months.
So far, I've had to go back up on the roof and tighten it down twice (2 times) because it keeps stretching. Crap stuff. I would not recommend that over a steel wire. |
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