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Re: [TowerTalk] Pinned boom to mast on 203ba

To: "Wayne Kline" <>, "k2vi" <>,<>
Subject: Re: [TowerTalk] Pinned boom to mast on 203ba
From: "Roger (K8RI)" <>
Date: Wed, 24 Oct 2007 17:10:03 -0400
List-post: <>

> Anthony
> IMHO you don't need to Pin a Hy-Gain 203 as long as you have a 2" dia 
> mast. it when you use a smaller dia you start getting into trouble because 
> of less surface circumference for the boom to mast clamp to bite into.

Over the years I've had many tribanders up plus a 30 foot long 7L 6-meter 
Yagi,  KLM 5L 20 meter and 6L 15 meter monobanders on 42' booms, and a 7L 
Wilson 10 meter monobander (39 foot boom). All were on 1 1/2" masts, none 
were pinned and none ever slipped. I've had a mast slip in a rotator a 
couple of times, but that's it.

> As for the Dampening rope. Most Hy Gain antennas specific Dampening rope 
> to over come resonance in the element.  I have seen hams who skipped this 
> process and in short order had raining aluminum, resulting in expensive 
> tomato stakes.  It's amazing to be on a tower and not only see an element 
> Vibrate with self resonance but SING a certain pitch,  like a wind chime.

My 204BA was up for a couple of years before the end caps came off and the 
rope came out.  I never did put it back in.
Rather than singing they sounded more like a power line or bunch of 
Locusts(sp?). And yes, all the connections were tight<:-))

This is one of those YMMV

Roger (K8RI)

> Wayne W3EA
>> From:> To:> Date: Wed, 24 Oct 2007 
>> 16:12:07 -0400> Subject: [TowerTalk] Pinned boom to mast on 203ba> > Can 
>> someone tell me why would you have to pin the boom to the mast on the 
>> 203BA?? This antenna weighs 32# on a 19' boom.Very light.My mosley ta-33 
>> which weighs 37# on a 14' boom.This antenna does not have to be 
>> pinned.Can i get away with pinning the boom.I am not in a high wind 
>> area.Also the 203 shows that you have to insert a rope into each element 
>> because of low wind vibration.How does the water weep out the ends.Whats 
>> up with the rope?Are the radials that thin that they might snap without 
>> the rope?I want to try this antenna but think i will stay with the mosley 
>> ta-33 which does not require pinning the boom and the rope in the 
>> elements.Any advice will be apreciated .thank you.> > anthony K2VI> 
>> _______________________________________________> > > > 
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