Bungie cord is self damping.
Put it in a PVC pipe so the
sun doesn't damage it.
Rick N6RK
On 8/11/2016 7:06 PM, Mike Fahmie via TowerTalk wrote:
One can use a combination of the two to damp the response!
-Mike-
From: Gary <gary_mayfield@hotmail.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Sent: Thursday, August 11, 2016 6:25 PM
Subject: Re: [TowerTalk] Weight on ends of a OCF diploe
I saw an amazing thing once. The South Dakota breeze caused my weight to head
upward with some momentum. The antenna then went slack while the weight was
still moving upward. The wind caught the antenna tightening it while the weight
was headed back down literally causing a snapping sound when the weight
bounced. I'm sure it applied a great deal more instantaneous force than the
weight alone. The next morning the weight and antenna were on the ground.
I replaced the weight with rubber 'bungee' tensioners, and it never failed
again. The sun eats up the tensioners so the need to be replaced occasionally.
73,
Joe kk0sd
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Mike Fahmie via
TowerTalk <towertalk@contesting.com>
Sent: Thursday, August 11, 2016 6:47 PM
To: Towertalk Reflector
Subject: Re: [TowerTalk] Weight on ends of a OCF diploe
I used a 50lb lump of granite, roughly one half cubic foot, of which there is
plenty up here. I set an anchor bolt in it. It was for a RG11 center feed
dipole with balun so more weight than an OCF dipole is needed.-Mike-
From: Russ Dearmore via TowerTalk <towertalk@contesting.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Sent: Thursday, August 11, 2016 4:01 PM
Subject: Re: [TowerTalk] Weight on ends of a OCF diploe
Chuck, This is a situation where whatever you have is probably a good starting
point. Ham's are known for collecting junk and one can get quite artistic
cleaning out ones garage. I use old style window weights but if the XYL will
let me get away with it, I might find an old radio chassis that might do well
also. Only a ham would think that to be artistic....... Hi My Heroes Wear
Combat Boots!
From: Chuck Gooden <Chuck.Gooden@comcast.net>
To: towertalk@contesting.com
Sent: Thursday, August 11, 2016 3:19 PM
Subject: Re: [TowerTalk] Weight on ends of a OCF diploe
Thanks for the replies to my question. Looks like 10-20 lbs should do
it at least as a starting point. This seems to confirm what I was
initially expecting.
I have already thought of most of the other suggestions that were
offered. I would like to put something up initially that I am satisfied
with for a while. Possibly some dayi may replace my TV Tower with a
"real" tower.
Sincerely,
Chuck Gooden N9QBT
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
TowerTalk Info Page -
Contesting<http://lists.contesting.com/mailman/listinfo/towertalk>
lists.contesting.com
TowerTalk is for discussion of tower and HF antenna construction topics. TT
members have lots of helpful information and are happy to share it.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|