[TowerTalk] 25G questions - House Bracket Noise

[Bob Moore]

I have a Rohn 25 bracketed to the house in 2 places, 10' up and at the 25'
level  The tower is 50' high with a 10' mast with a 3 el tribander.  I put
lags at the lower bracket and 3/8" dia bolts drilled through at the higher
level.  The house is constructed with 2x6 studs due to the snow load.  This
is also a fairly windy area, especially when we receive the big winter
storms.  The tower is secured to the brackets with U bolts, very tightly.
I have no vibration, noise or any problems with it.  Been up for 20+ years.
Also I put some guys at the top, don't think I really need them, but they
certainly give me reassurance.  

Where I used to work we had a rohn 25, 50' high bracketed to the building in
2 places, one at 20' and the other near the top, had some commercial
antennas on it, light load.  Never had any problems with it for 30 years.  I
think the key is to have a solid installation with nothing loose and all
bolts tight. 

Good luck with whatever you choose.........Bob,   K6NV


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of ac9s at mchsi.com
Sent: Monday, June 07, 2010 5:17 PM
To: towertalk at contesting.com
Subject: [TowerTalk] 25G questions - House Bracket Noise

I had a short - 40' - tower bracketed to a bi-level years ago with a light
weight 20-15-10 fiberglass quad.  The bracket was about 15' up.  The noise
drove me crazy.  Vibration during windstorms was not something I chose to
replicate.  I now use a guyed tower well away from the house with a tag line
carrying feedlines close to the house where they drop to the ground prior to
entry.

Good luck with whatever you choose.

Keith
AC9S
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