I had a lot of problems with the 155CA and the 105CA. This was some time ago
but I bought them and stacked them at about 90 feet. Within a couple of months
three element ends on the 155 were broken off and the rope was hanging out the
ends. Took it down and replaced the element ends and within a month more
element ends were broken off again and this time it was on both antennas.
Couldn't afford the take down over and over so I bought then down and put them
in the trash pile, Bought the KLM Big Stick 6 element 15 and 10 and stacked
them up with OUT the rope. They were up till I moved and never had the element
problem again. Same tower and same location. Wind not a factor because we
were having only light winds.
I liked the antenna but just couldn't keep them working.
Bill W5VX
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Neal
Sulmeyer
Sent: Thursday, June 22, 2017 5:25 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] HyGain 155CA dampening rope
I have never had any issues with fatigue on the tapered element Hy-Gain
antennas. I have had two 105's, a 205 that I converted to 15M (yielding
stiffer elements), two 155's and two 204s. However, at our contest station in
the Malibu, California mountains, right off the ocean, was a different story.
All our antennas were home brew and no matter how well we designed the tapers
and what thickness the element walls, element fatigue was a serious problem.
We used rope at first, but several time we found broken elements hanging by the
ropes! Our solution was to use "Great Stuff" foam we purchased at Home Depot.
It took a few trails to get the foam to go all the way down the element, the
trick being slow and steady. Never had a problem after that.
Neal, K4EA (ex AE6E)
On Wed, 06/21/2017 10:22 AM, David Aslin G3WGN <david@aslinvc.com> wrote:
>
Mindful of Steve's 'Prime Directive' which suggests I absolutely should use the
dampening rope in my recently acquired used 155CA, what is the experience of
the TowerTalkian brains trust of the need for the rope in a 155BA/CA at a
relatively exposed site?
> 73, David G3WGN M6O
>
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