[TowerTalk] Yagis and Rivets

Scott Detloff K8DX ni8l@raex.com
Wed, 15 Mar 2000 18:41:56 -0500

When I built my Yagi's, each element is overlapped by at least four
inches.  The rivets don't "tighten" the connection, but keep it from
sliding in or out.  If the correct rivets for the wall thickness were not
used, I can see where they may have become loose since they never
were properly installed.

Scott K8DX
-----Original Message-----
From: Dave D'Epagnier <DDEpagnier@compuserve.com>
To: towertalk <towertalk@contesting.com>
Date: Wednesday, March 15, 2000 5:58 PM
Subject: [TowerTalk] Yagis and Rivets

>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?
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