I did exactly that, almost, around 1970.
HDBX-48 extended to 72'. 1.5" water pipe made out of threaded 10' pieces
and coupled with threaded couplers (spot welded). Short collars every
12' or so made from 2" pipe. Let all the weight sit on the rotator.
Worked fine except I felt the twist in 72' of common 1.5" pipe was
excessive with a 4L triband quad. If I did it again I'd use a larger
diameter mast.
-Steve K8LX
On 9/6/2013 9:38 PM, Doug Wetzel wrote:
When I put up my HDBX-48 in the spring, I'm thinking of mounting the
rotator at ground level. Has anyone on the list done something similar?
What did you use for mast all the way up the tower, and did you use
multiple thrust bearings to align the mast?
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