[TowerTalk] Yaesu GA-3000 tower absorber

[K7LXC@aol.com]

In a message dated 12/11/00 7:33:15 PM Pacific Standard Time, n7us@arrl.net 
writes:

> Has anyone used one of these things and, if so, what do you think??  They
>  are shown on p. 141 of the Fall/Winter AES catalog.  It looks to me to be a
>  two-plate sandwich with big rubber grommets/bumpers in between.  I'm
>  assuming it mounts below a rotor to minimize the torque on a tower.
>  
>  They aren't cheap (compared to what??) at $120 for the one for the
>  G1000/G-2800 (I have the latter rotor).  I'm thinking it's good insurance
>  against wind damage to the tower.  In my case, I'll have a C-31XR above the
>  tower top and a F-12 MAG 340 toward the top of a 20' chrome-molly mast.  
The
>  tower is a US Tower HDX-589MDPL.  (Used to have a TW-33XL 3L WARC antenna 
on
>  it too in NM, but the tower was only up 49' there.)

    Dave Leeson, W6NL, ex-W6QHS, started using BMW parts to absorb rotational 
shocks a bunch of years ago. One or two companies introduced them but they 
wouldn't hold together so they fell out of favor. When I was at Hy-Gain, 
Roger Cox felt that using one would increase rotator capacity by about 25%.

    I don't know anything about the one you mentioned. 

Cheers,   Steve    K7LXC
Tower Tech 

--
FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com