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Re: [TowerTalk] Differentiating Tri-Ex Towers

Subject: Re: [TowerTalk] Differentiating Tri-Ex Towers
From: Mickey Baker <>
Date: Mon, 2 Aug 2010 11:45:47 -0400
List-post: <">>
Thanks to all that responded - I found the LM-354HD dimensions on Tashjian's
web site.

The dimensions are exactly as the HM-354's manual!

I'm looking at a tower represented to me as a LM-354HD but the manual is for
an HM.

The top section is 16 1/2" on a side, the bottom section is 23", the
distance between the mounting "ears" is 23 5/16" - just like an LM-354HD.
Dimensions would indicate that's what this tower is, and it appears that the
RCB-70 base will work.

The tower is in good shape, but the manual delivered to me (which frankly
seems older than the tower) is for an HM-354 - which has the same
dimensions, although the wind load certification is "22 sq ft at 60mph"
extended for the HM-354. I'm thinking that this was before EIA wind
standards, but performance may be similar.

Since the dimensions are the same, what's the consensus - should I (for the
purpose of permitting) assume this is an LM-354HD and proceed?

Thanks again,

Mickey, N4MB

On Sun, Aug 1, 2010 at 9:55 PM, Mickey Baker <> wrote:

> How would one tell if a tower were a LM-354, LM-354HD or an HM-354?
> Should there be a data plate or descriptive weld?
> Thanks and 73,
> Mickey, N4MB

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