[TowerTalk] bracketed 45G (Bob Smith NA6T)

Bob Smith na6t at na6t.com
Fri Jun 16 12:54:13 EDT 2006

Hi Fellas,

I think where everyone is getting different sizes and mountings for the Rohn
'eve brackets' is because there are FOUR (4) different eve brackets made for
the rohn 25/45G towers.

Bracket 1
         Adjustable house bracket 15' - 24' - 36'  (lightweight model)

Bracket 2
         Heav Duty Universal House Bracket (adj. from 18" to 36")

Bracket 3
         Universal house bracket  (ajd from 6" to 30")

Universal Eave Bracket
         you set it and forget it,, to ify, see the pics in the catalog

all of the above brackets will fit rohn 25/45 tower.  I've installed 
3@ of the Bracket
#2 on local towers recently.  They have a mounting surface to the 
'eve' of between
5.5 - 6' and are very heavy duty for both the rohn 25 and rohn 45 
tower.  The other
brackets will fit but a pretty lite duty brackets.

I've always gone by the plan, bigger and stronger is better on tower 
mounting, you really
can't 'overdue' the mounts and have used bracket #2 in all my rohn 
25/45 mounts.

just a little info


Bob Smith
Robert Smith Consulting
"Wireless Installations -- Government, Businesses & ISP's"
F.C.C. Licensed-Commercial & Amateur Services
ARRL Life Member
1-707-964-4931 w/answering machine
Fort Bragg, California   95437

"On The Air-Conditioned Mendocino Coast, In REAL Northern California"
No trees were destroyed in the sending of this message.
However, a large number of electrons were terribly inconvenienced.

Danger, Will Robinson!

You cannot rely upon anchors in a brick face to support
a structure.

You MUST through drill, into the structural framework,
or into a backing plate which spreads the load into the

I ran 50' of 45G for several years in Vermont, bracketed
at 6' and 16'.   Had about 10 s.f. on top.   It was quite

In my case, I manufactured house brackets from pressure treated
2x8's, which spanned 3 roof trusses and floor joists.  I lag
screwed into the structure with two 12"x 1/2" screws at each
framing point, being careful to drill precise pilot holes to get
100% thread penetration, and no cracking.

The 2x8 system fixed the flat side of the tower against the building,
approximately 2" out.  If your structure has deep eaves, you'll be
stuck with using the Rohn house bracket.  I found that to be more
flexible than I wished, which drove me to design my own.

Where you have to get a permit, you're already constrained to use the
commercial product.   In that event, you're also constrained to follow
the prime directive...i.e. the mfr's specifications.


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