Gary,
Sorry Gary I mean the end is flush and glued with RTV and the end cap... it's
the other end that has the 4 inch TAIL. to have dampening contact with the
adjoining element tube..
Wayne W3EA
________________________________
From: Gary Schafer <garyschafer@largeriver.net>
Sent: Wednesday, June 21, 2017 10:19 PM
To: 'Wayne Kline'; 'David Aslin G3WGN'; 'towertalk'
Subject: RE: [TowerTalk] HyGain 155CA dampening rope
If you let the rope stick out 4" from the end of the element and then place
the end cap on, how does that work?
Or do you mean that once RTV is applied the 4" gets pushed back into the
element?
Thanks
Gary K4FMX
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Wayne Kline
> Sent: Wednesday, June 21, 2017 7:49 PM
> To: David Aslin G3WGN; towertalk
> Subject: Re: [TowerTalk] HyGain 155CA dampening rope
>
> I have installed a number of 15 meter beams and currently have a
> 5/5/5 stack... I learned many moons ago that especially the 155
> antenna has a wind resonance. on quit days with certain wind speed (
> not gusty ) you can hear it sing a HIGH note...... Also from the climbed
> tower the 7/16 " tips Hover like a tuning fork. resulting in a
> metal fatigue @ the face of the taper joint.... The first one I fixe for
> a client he thought it just slipped out of the Hy Gain screw type
> clamp. Was a CLEAN brake But a quick look at the manual and parts
> inventory proved to him it was about 6 inches SHORT !!! From the
> total length.
>
>
> Any rope will do Polly , cotton cord any rope to dampen the
> vibration. as long as it sticks out the total element length about 4
> inches .
>
> I RTV the end and install the cap...
>
>
> Wayne W3EA
>
>
> ________________________________
> From: TowerTalk <towertalk-bounces@contesting.com> on behalf of David
> Aslin G3WGN <david@aslinvc.com>
> Sent: Wednesday, June 21, 2017 5:25 PM
> To: towertalk
> Subject: Re: [TowerTalk] HyGain 155CA dampening rope
>
> Thanks to all for the wisdom, both on and off-reflector.
> Clearly the rope should be used with this antenna, as insurance against
> the PITA of taking it down to fix a broken element, if for no other
> reason. And I learned too that the vibrations that lead to element
> failure can be just as easily caused by a low velocity wind as a high
> one - so my exposed site is not the real reason to use the rope.
> I also got some very helpful practical suggestions on end cap
> installation and torque balancing the antenna.
> I love this reflector! I'm good to go now with best practice for this
> antenna. Thanks again guys!
> 73, David G3WGN M6O
>
>
> -----Original Message-----
> From: Richard Solomon [mailto:dickw1ksz@gmail.com]
> Sent: 21 June 2017 20:43
> To: towertalk <TowerTalk@contesting.com>
> Subject: Re: [TowerTalk] HyGain 155CA dampening rope
>
> Whenever I used Poly Rope in the
> elements, I would use Epoxy. First
> at the far end, then tension the rope
> with a weigh and epoxy the near end.
>
> Never had a failure.
>
> Also, did the same on verticals. Never
> needed Guy Ropes on them.
>
> 73, Dick, W1KSZ
>
> On Wed, Jun 21, 2017 at 11:08 AM, john@kk9a.com <john@kk9a.com> wrote:
>
> > Hygain uses very thin wall 7/16 diameter element tips attached to a
> > much larger swedged tube. In my experience these elements rattle and
> > break with no rope so it is probably a good idea to use it. I do not
> > like trapping in water with end caps so perhaps you can fasten the
> rope using a cable tie.
> >
> > John KK9A
> >
> >
> > To: "towertalk@contesting.com" <towertalk@contesting.com>
> > Subject: [TowerTalk] HyGain 155CA dampening rope
> > From: David Aslin G3WGN <david@aslinvc.com>
> > Date: Wed, 21 Jun 2017 14:22:22 +0000
> >
> >
> > 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
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
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