[TowerTalk] rope

[Craig Clark]

>
> >The black dacron covering wears through and once that happens the
> >polyester seems to go pretty quickly.
>
>I've had similar bad experience with the dacron rope from the following
>link. I was using it with pulleys to suspend dipoles from the tall tower
>at W6BX. It lasted about a year.
>
>http://www.radio-ware.com/products/dr316.htm



Wear is a function of abrasion and if you have something that is 
hostile to the rope, it is going to break! All too often poor quality 
or undersized pulleys are used: I know because I have made this 
mistake. I also had a triangle antenna in a quaking aspen that stayed 
up long enough for the tree to grow over the rope......and then it failed.

Marine grade pulleys are by far the best to use but pricey. I found a 
better grade of hardware pulley with a bronze axle at my local hardware store.

If you have the rope going over a tree branch, the mechanical motion 
of the tree is going to abrade any rope. Another potential problem is 
using a small sized rope in a too large pulley. The rope could slip 
off the wheel and jam between the axle and the housing.

No rope product is perfect.





73, Craig Clark, K1QX

PLEASE NOTE NEW EMAIL ADDRESS
JCCLARK at WILDBLUE.NET

RADIOWARE AND RADIO BOOKSTORE
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