> 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: k2vi@cox.net> To: towertalk@contesting.com> 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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