Hi,
Thanks for your suggestions.
I contacted one of the professional climbers today. That guy has a lot of
experience, i think more than 20 years working with AM and TV towers.
He taught me a very interesting tip to tie the guy cable. It is different
than "cable serving" mention before that required an special tool.
I will try describe the method here:
He split the end (or begin) of the cable in 2 pieces few feet long...1 piece
with 3 strand and the other with 4 strand...then he cross both pieces and
then twist it back, so, he twist back the 3 strand piece over the 4 strand
piece and vice versa and he made a loop or gauze...then he add the
clamps...if the clamps fail for some reason the cable will not fail because
it is tie by it self.
They have been using this method plus the clamps for many years with
success.
I will try to do a video to explain better this method.
He suggest me, like many in the list, use only one set of guy wires for a
30ft tower. Installing the guy wires about 3 ft above the second
section...it is about 23 ft high. My anchor points are 16 ft from the base,
it is about 70% of 23 ft and i have 1/4" EHS guy wire. Now, guy lenght are
near 28 ft, so, they are not resonant on any of the bands (10, 15 and 20m)
I know my base is not very strong because it is not on the ground with a
foundation...it is over a 4" concrete flag roof bolted with 4 threated rods
3/8" about 2 inch inside the concrete...i think i can improve my base adding
guy wires from each leg of the tower base to each anchor point.
Merry Xmas !!!
73....Douglas, CO8DM
"No creo que haya alguna emoción más intensa para un inventor que ver alguna
de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer,
de dormir, de todo." - Nikola Tesla
----- Original Message -----
From: "Chris Wynn via TowerTalk" <towertalk@contesting.com>
To: "John V" <vjohnv@cox.net>; <towertalk@contesting.com>
Sent: Thursday, December 17, 2015 3:48 PM
Subject: Re: [TowerTalk] Can?t add egg insulator - options in Cuba forguy
line
I used tow straps that I bought at Harbor Freight. These were VERY
reasonably priced and did the job for lifting my 72 foot crank up tower,
all the yagi's and more recently, my XM-240 2 element 40 meter yagi, which
is not heavy, but I would have a cow if the straps failed.
Try harborfreight.com or Google it, as I am not sure of the actual web
address.
ChrisN4XFA SEDXC ARRL LIFE MEMBER
Sent from Yahoo Mail on Android
On Mon, Dec 14, 2015 at 8:56 PM, John V<vjohnv@cox.net> wrote: Douglas,
pre-made lifting slings may be way too expensive and too strong for
your needs. The suggestion of looking at a Yacht supply store is a good
one
but to have more options and a better price visit a "commercial" fishing
store (not sport fishing). At most commercial fishing supplies you will
find
a selection of heavy duty UV protected black rope at a reasonable price.
If
the diameter is too small for the load expected you can always use several
lengths (loops - twisted) of the cord for each guy.
Abrazos and Feliz Navidad, John NA6L
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