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[TowerTalk] RE: TowerTalk Digest, Vol 17, Issue 30

To: <>
Subject: [TowerTalk] RE: TowerTalk Digest, Vol 17, Issue 30
From: <>
Date: Tue, 11 May 2004 16:45:34 -0500
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It did this before I even had an antenna or cables on it. I probably should 
have stopped there, but the manufacturer, Heights, suggested that since I did 
not have the fold-over bolts tight, that must be the problem. Well, that had 
nothing to do with the problem.

There are 6 large bolts in each joint of each section. Near the top this 
changes, of course. This is a "heavy duty" tower. I don't see how the bolts can 
be elongated, as it has been up such a short time (January), and the first time 
I had it up, again without anything on the top, it started doing the "clang". 
Only worse with any sort of wind load. The Force 12 C4 is only 9 sf of wind 
load, with the tower rated at 25 sf. 

Nope, not a "creak" at high winds, but a "loud clang" heard for a couple 
hundred feet with even a modest 5-10 mph winds. 

I have not climbed it beyond maybe 30 ft, so I can't comment on sway. Nothing 
noticeable, but with clouds going by, everything looks like it's moving.

There was another comment about the weight of the antenna on it when it is 
folded over. The antenna is very light, and the problem is when the tower is 
upright, not when it's folded over. Again, it does this with NO antenna even. 
Just the force of the wind, even light wind. 

I feel it has something to do with a design change, as I have had (and still 
have) aluminum towers that don't make a peep. They were by Universal instead of 
Heights, but don't think the issue is there, as I am sure they both make a good 
tower, in general.

The fold over section is 4 ft up, not at anything like 30 ft. The bottom 4 ft 
of the tower is very heavy duty, very thick with probably 2 1/2 inch wide legs.

I will work on getting some pictures up on the web so maybe somebody can look 
at them and see an issue. Heights sure has not been able to.


Bob Redoutey, N5KF

Message: 4
Date: Tue, 11 May 2004 13:02:52 -0400
From: "Jerry Keller" <>
Subject: Re: [TowerTalk] buying new tower
To: <>
Message-ID: <009401c43779$ced829e0$44c75144@homebrew1>
Content-Type: text/plain;       charset="iso-8859-1"

Bob...I have 5 sections (40') of Heights aluminum and no problems at all.
Maybe it's that Force 12 beam that's the problem.  Take that thing off and
put on a SteppIR yagi and it will "sing" like mine does, rather than
"clang"... ;-)...

Seriously, has any determination been made as to what is causing the
"clanging"?  Are the bolt holes elongated?  When the tower was up, did it
sway noticably in the wind?

73, Jerry K3BZ


See:  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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