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Re: [TowerTalk] Clanking Tail Twister II

Subject: Re: [TowerTalk] Clanking Tail Twister II
From: Jay Kesterson K0GU <>
Date: Fri, 28 Oct 2011 09:28:56 -0600
List-post: <">>
On 10/27/2011 8:40 PM, wrote:
> I have a Tail Twister II on top of my wall mounted  Tri-EX 33' crank up tower 
> with home-brew 8' 5th section and 2' tall base. Because the tower is mounted 
> to the wall of the shack I hear every sound from the tower and rotor -- just 
> perfect for Halloween!  Is this noise normal for the rotor?
> One of the most annoying sounds is when the TT-II brake is retracted with a 
> big "ker-blamo" clanking noise that resonates through the tower and into the 
> wall just over my head.   Before I take the rotor apart is there anything 
> that the group can suggest to add or replace in the rotor to lessen the 
> noise? I'm thinking that originally there may have been some cushioned stops 
> in the rotor to prevent the the big metal-on-metal CLANK as the brake is 
> retracted?

   Wedge brake rotators do make a sound when the brake is actuated. I 
had a house bracketed tower ONCE. I could hear all manner of vibrations 
from the antennas.

> Do the Yaesu 800/1000 series rotors also make this "clanking" noise?   
> Although I'd  like to not spend the money for a new rotor are there any 
> suggesting for a quiet rotor that is in this load class?

   Yaesu rotators use a worm gear and not a wedge brake. So they don't 
go thump in the night.

73,  Jay  K0GU


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