For a short tower (40 feet, Rohn 25), I put threaded J-bolts into the
footing with a nut and heavy flat washer on the threads. I slid the bottom
section on to the bolts and adjusted the nuts to plumb the tower. Then I
drilled pilot holes into the bolts, removed the bottom section, drilled out
the holes, and put in regular tower leg bolts to hold the tower to the
J-bolts. The tower is supported by a house bracket at 25', so this
eliminates most of the tipping moment that would otherwise try to pull the
tower off the J-bolts.
This has the additional benefit that water will drain out of the tower legs
because the bottom isn't plugged up. You can leave the nuts and washers on
the bolts or remove them - the tower leg bolts hold tower in place.
73, Ward N0AX
- - - - -
I need to be able to effectively and safely improvise
a way to mount my
Rohn
25 tower sections two regular 10' sections one top
section 9.5' to the ground.
Does anyone have any ideas other than buying a short
piece of tower to
put in
the ground or a swivel base or buying another section,
ect.
I was just going to stick 3 feet of the bottom section
of the tower in
the
hole (concrete) but, since it is so short already,
really
didn't want to leave it there should we move.
Is there no other way than spending more money on it?
73 fer nw es gud DX,
QSL VIA: BUR, LotW, e-QSL
Bob AD5VJ
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