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Re: [TowerTalk] Hose Clamps Compared

To: John Simmons <jasimmons@pinewooddata.com>
Subject: Re: [TowerTalk] Hose Clamps Compared
From: Jim W7RY <jimw7ry@gmail.com>
Reply-to: jimw7ry@gmail.com
Date: Tue, 9 Aug 2022 13:04:52 -0500
List-post: <mailto:towertalk@contesting.com>
What you failed to mention is that gravity is what really holds the DB-224 together. The two sections slide inside of one another. Exactly the same as a Rohn tower section.  The hose clamps are to simply keep the sections from moving at the joint.

I've installed countless numbers of them (and the UHF version DB-408, DB-411 etc) on commercial towers. They work and hold together just fine. They can even be lifted by the top and they hold together just fine.

73, Jim W7RY


On 8/8/2022 6:18 PM, John Simmons wrote:
The venerable DB224


--
73,
-de John NI0K rural Debs, MN
https://www.qrz.com/db/ni0k


Jim W7RY wrote on 8/8/2022 2:39 PM:
Which one is that?
Jim, w7ry

On Mon, Aug 8, 2022, 12:17 PM john simmons <jasimmons@pinewooddata.com> wrote:

    And yet a popular and old design 21’ commercial antenna is
    successfully held together with one worm drive hose clamp

    > On Aug 8, 2022, at 11:19, Drew Vonada-Smith
    <drew@whisperingwoods.org> wrote:
    >
    > Ouch.  I think I bought a tomato slicer from that guy once.
    >
    > I've had better luck with the T-bar style clamps in the tougher
    applications.  But on my 80M 4SQ, which needed repairs every
    year, I gave up and went to a combination of bolts, and rivets on
    the smaller sections.  Not a failure since.  I've mostly given up
    on hose clamps as a reliable antenna fastener.
    >
    > K3PA
    >
    > -----Original Message-----
    >
    > Message: 1
    > Date: Sun, 7 Aug 2022 20:53:15 -0400
    > From: Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
    > To: towertalk reflector <towertalk@contesting.com>
    > Cc: CrankupTiltoverTowers@groups.io
    > Subject: [TowerTalk] Hose Clamps Compared...
    > Message-ID: <f932d352-32fe-2a22-a0e9-3fe1e61a8e81@tampabay.rr.com>
    > Content-Type: text/plain; charset=UTF-8; format=flowed
    >
    > Sixteen hose clamps are put through a torture test in the
    video, below.?
    > A link to each clamp is provided under the description.
    >
    > https://www.youtube.com/watch?v=jtMPq2lG-8U
    >
    > 73,
    >
    >
    > Jon Pearl - W4ABC
    >
    > *********************************
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    >
    >
    >
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--
Thanks and 73, Jim W7RY
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