I can't put up a tower for various reasons but a friend told me that he
installed a homemade structure to hold up a mast, with the thrust bearing
and rotator motor inside his attic with the 2 inch mast going through a
hole in the roof. The antenna I want to use is a Mosely TA-33 with the
WARC option, too large and heavy for a roof tower, which I use for my
Hexxbeam and 6 meter yagi. I can reinforce (sister) both the floor/ceiling)
joists and rafters to accommodate the extra stress, but figured that a top
section of a tower that could accommodate both a rotator plate and thrust
bearing might save me some work and welding pipe and metal plates. I'm 73
and don't want the hassle and expense at this point in time of doing the
concrete work and getting a tilt base crank up tower.
Some online research revealed that commonly available Rohn top sections are
too long (I need less than 7 ft) and expensive. Can anyone suggest a
manufacturer who makes a shorter top section? I also considered using a
heavier roof tower mounted inside the attic but the antenna is a bit too
large and heavy for the one on the market that comes as a kit..
A used section would be perfect if I knew the manufacturer and model since
towers are being decommissioned all the time in this area and many are
hauled away as scrap. It has to accept a thrust bearing and rotator plate
and be less than 7 ft long.
Any suggestions are appreciated.
73,
Dave WB2PJH
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