[TowerTalk] Antenna Rope

[Don]

The name of the manufacturer I couldn't remember was Everson. I would 
imagine it may only be available locally here on the left coast but the 
info and URL is at https://www.eversoncordage.com/tarred-seine-twine. 
Used by the fishing fleets for many purposes from net to on-board needs. 
Living on the ocean I can attest to its ability to withstand the 
elements and have never had one break, even under our terrible winter winds.

Don W7WLL

On 4/19/2019 8:25 PM, Don wrote:
> That is what I use out here on the left coast, a tarred twisted line 
> that is produced by a firm (Evanston?) up in the Seattle area. Used by 
> the fishing fleets up and down the left coast for numerous purposes. 
> I've never had one break under the most severe conditions. Do need to 
> secure the ends because it is twisted. A little flame or dipped in 
> resin. Available at ship chandlers and suppliers. Withstands salt, UV 
> and rain. I have one antenna that it has held up for 17 years and 
> still looks good.
>
> Don W7WLL
>
> On 4/19/2019 8:15 PM, Keith Dutson wrote:
>> In 1984 I bought a roll of tarred nylon cord (trot line) to string up 
>> a 160 meter dipole in the trees. I think it was 440 pound strength.  
>> One end got stuck and had to be cut to get the wire down several 
>> years later.  That line still is visible today, hanging down from 
>> that tree.
>>
>> 73, Keith NM5G
>>
>> -----Original Message-----
>> From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Jim 
>> Brown
>> Sent: Friday, April 19, 2019 1:29 PM
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] Durability of Mastrant rope
>>
>> 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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