[TowerTalk] Hose Clamps Compared

[Jim W7RY]

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 at 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 at 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 at tampabay.rr.com>
>>     > To: towertalk reflector <towertalk at contesting.com>
>>     > Cc: CrankupTiltoverTowers at groups.io
>>     > Subject: [TowerTalk] Hose Clamps Compared...
>>     > Message-ID: <f932d352-32fe-2a22-a0e9-3fe1e61a8e81 at 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