[TowerTalk] which rope for element anti-vibration

[Richard Smith]

 I use the Hy-Gain end caps that Mike described below and wrap them with Scotch 33 tape to slow down the process of UV degradation. I have seen some end caps that were in service for many years and the tape seemed to do a good job protecting the end caps.
73, Rich, N6KT
    On Monday, August 29, 2022 at 03:29:11 PM PDT, Joe Subich, W4TV <lists at subich.com> wrote:  
 
 
The "rope" used by Hy-Gain is 5/32" polypropolene ...

Manuals for the 204BA, 205CA, 155CA, 105CA, LP-1009A,
LP-1010A, TH5D, TH7DX, TH11DX, EXP-14, VB-64DX  and
VB-66DX manuals in my file all call for rope in elements
(monoband elements for TH5/TH7/TH11/EXP-14).

I do not have manuals for the 203BA, 153BA and 103BA so
I have not checked them but suspect they also call for
rope dampers as the element construction is the same
as the bigger antennas.  All of the Hy-Gain element tips
are 7/16"

73,

    ... Joe, W4TV

On 2022-08-29 6:01 PM, Mike Smith VE9AA wrote:
> Paul,
> 
> My HyGain 5-el 10m (LJ-105BA or similar) yagi has what looks like black
> polypropolene inside the elements.
> It's pretty small..1/4" maybe?
> It's held "in" by the end caps on the elements, which of course, crack and
> fall off. I think I eventually lost
> 1 of the ropes.
> I'd probably do a "gob of silicone" or something if I was to ever redo it.
> 
> Mike VE9AA
> 


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