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[TowerTalk] OptiBeam OB1-4030 aluminum alloy?

To: towertalk@contesting.com
Subject: [TowerTalk] OptiBeam OB1-4030 aluminum alloy?
From: Paul N1BUG FN55mf <paul@n1bug.com>
Date: Sun, 21 Sep 2025 08:07:36 -0400
List-post: <mailto:towertalk@contesting.com>
Hi,

Does anyone know with high confidence what aluminum alloy the tubing in a OB1-4030 (purchased new in 2021) would be? DX Engineering could not help. WiMo has not yet responded.

I am trying to repair my storm damaged antenna. The only tubing I can find in the correct size is 6060. That seems very soft for antennas but given the appearance of the bend in the original maybe it was rather soft. I can get it at a very good price through September 30, so I am running out of time to find out whether this is suitable.

73,
Paul N1BUG

--
Paul, N1BUG FN55mf
Check out my website and YouTube channel
http://www.n1bug.com
https://www.youtube.com/@n1bug


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