[TowerTalk] Yagis and Rivets

[AA6DX]

Rope .. yes!  mid-70s --I put together a mono 6 el 10M for stacking over my
2015 Wilson, and ignored the advice from Jim to put rope in the elements to
dampen the wind caused vibrations.  OOOOPS ... first winter, fine.  Spring,
Summer, Fall, OK .. 2nd Winter .. well, element pieces were found in the
neighborhood yards.  Not all were found ..   `nuff said.
Mark .AA6DX  (and, would rather use aluminum rivets than any other known
"clamp"  ... along with Penetrox, or one of those type conductivity
enhancers!)
73 --- Mark, AA6DX
aa6dx@arrl.org

Original Message -----
From: "Madison Jones" <w5mj@hal-pc.org>
To: "Dave D'Epagnier" <DDEpagnier@compuserve.com>; "towertalk"
<towertalk@contesting.com>
Sent: Wednesday, March 15, 2000 5:22 PM
Subject: Re: [TowerTalk] Yagis and Rivets


>
> More than one antenna has rattled apart due to harmonic vibration induced
by
> the wind.  When you put it back together you might try putting some rope
in
> the elements which have loose rivets.  That ought to dampen the vibration.
> You can hold it in place by using plastic end caps of the proper size.  I
> have ropes in a HyGain 204BA and a Cushcraft 15-4cd that I know about, and
> perhaps others, and all the elements are still tight after many years in
> many winds.
>
> Regards,
>
> Madison
> W5MJ
>
>
> -----Original Message-----
> From: Dave D'Epagnier <DDEpagnier@compuserve.com>
> To: towertalk <towertalk@contesting.com>
> Date: Wednesday, March 15, 2000 4:57 PM
> Subject: [TowerTalk] Yagis and Rivets
>
>
> >
> >Hello,
> >I'm just about to finally put back up my C3-S. It's been up for about a
> >year and a half and worked well all that time - no problems. I thought
I'd
> >maybe redo the joints with some silicone vacuum grease and kind of spruce
> >it up a bit before it was put back into commision. One thing noticed on
my
> >half disassembled antenna though is that ALL OF THE RIVETS ARE LOOSE!
> >Sorry, don't mean to shout  but  this is surprising. It looks to like
every
> >one of those once very sturdy rivets are loose. I can wiggle every
element
> >section with respect to its mate and have to wonder how good the rf
> >connection is between them. And I thought rivets were the best and would
> >never be a problem.They were installed correctly. I'm wondering if
aluminum
> >rivets are simply wimpy. Maybe steel rivets would hold much stronger and
> >longer, and even though they may cause local corrosion, the overall
> >connection might last longer with steel. Has anyone else experienced
this?
> >How did you deal with it?
> >
> >--Dave
> >K0QE
> >
> >--
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> >
>
>
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