Hi, Lee;
Great question, and I look forward to seeing the responses. I plan a
similar installation. one of my thoughts, subject to the responses we
see, it to support the coax on another line fastened at intervals to
minimize the tension on the coax. Perhaps I'll put knots in the support
line to stopper the attachments that carry the coax. I might tape the
coax to the line every three to five feet to force them to flap in the
wind together and support the weight on a knot every 10 to 15 feet.
Just initial thoughts to facilitate the pulley arrangement.
On the other hand, I installed my 60' Universal tower so that it hinges
at the base to permit me to lay it on the ground with a falling derrick
and my tractor. I may just fasten the coax for the dipoles to the tower
rather than try to solve all the problems of dangling it from 50 feet.
It's more of a project than dropping the dipole with a pulley, but my
present dipole has been up over 10 years without having to come down.
The tower needs to come down much more often than that for maintenance
of the tower and other antennas. For example, bolts should be removed
and inspected every 5 years. I've observed the deterioration that can
occur in 10 years and it is scary.
73 de WOØW
Lee Buller wrote:
>Ok, I have to admit it...I am past my prime by a
>decade or so. My knees don't like climbing. I just
>can't climb the tower like I use to so I have to ask
>others to help...but the "others" are getting scarce.
>Not a lot of hams know thier way around towers in my
>neck of the woods.
>
>So, I need to work on my dipoles (Inverted-Vs) for 80
>and 40...I have two hanging off the tower on different
>feedlines. I replace them and put on new coax as
>well. What I want to do is this:
>
>Place a pully system at 45 feet where they are now (I
>have a 60 foot 25G tower guyed at 30 and 58 feet) so I
>can pull the dipoles up and down when I need to, so I
>don't have to climb the tower. That is all find and
>dandy, but I have this questions:
>
>Can I let the coax (RG8 - Type) hang down fairly low
>to the bottom of the tower (say 10 feet or so). What
>is the pitfalls of allowing the coax to hang freely.
>I will be using Budwig centers which are pretty tough.
> What have all you 'experts' experienced allowing the
>coax to hang free? Currently, my coax is attached to
>the side of the tower which precludes me from lowering
>them down through a pully system. I am trying to
>minimize any tower climbing in the future.
>
>Hey, if this question is to stupid...just delete it
>and move on. Hi!
>
>Lee Buller
>"Out of Shape...Growing Older...Looking for a knee
>replacement"
>
>
>Common sense is in short supply - get some and use it.
>If you can't find any common sense, ask for help from
>somebody that has some common sense. - Lee Buller
>_______________________________________________
>
>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
>questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|