[TowerTalk] yagi antennas breaking elements

[Wayne Kline]

Jorge,

  Rope  I have always use 1/8 woven Polly propylene in element tips 4 ft  worked for me. Before that My  hi-Gain  204BA , 155 BA and 105 BA would loos tips every YEAR    there is minimal weight on the polly and is dose no absorb water

Wayne ,W3EA
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From: john at kk9a.com<mailto:john at kk9a.com>
Sent: Tuesday, January 17, 2023 7:18 PM
To: towertalk at contesting.com<mailto:towertalk at contesting.com>
Subject: Re: [TowerTalk] yagi antennas breaking elements

I looked at the manual and the tips appear to be Ø1/2" tubing with .049
wall, I am not sure what grade.  Perhaps upgrading to a .058 wall 6063-T8
aluminum tube would work better.  Do you have end caps that may be trapping
water?  Rope is also an option and probably a requirement for Hy-Gain beams.

John KK9A


Jorge Diez - CX6VM wrote;

hello

I have had a problem with my M2inc antenna, 15M6DX over the years.

I has 6 or 7 times different elements tips beaking, really is
unbelievable that this happen, and seems is worst now, actually I have 3
tips broken in the last weeks

I am in a windy location, maybe the vibration is causing this.

What will be a solution for that?

I heard about a rope inside the elements, but will add weight to it

Others are using expanding foam

What do you think about that?

thanks in advance!

--
73,
Jorge
CX6VM/CW5W

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