[TowerTalk] Need some mast/rotor advice

Jim Miller jim at jtmiller.com
Sat Feb 2 22:45:11 EST 2013


I've currently got a successful installation of a hexbeam almost directly
mounted atop a Alphaspid which is in turn mounted on a 2ft aluminum mast.
This whole thing is solidly held on a AB1342 crankup. The aluminum mast is
an accessory to the AB1342 and is part of the upper guying assembly.

I'd like to add an M2-6M3 beneath the hexbeam. To do this I'd want to raise
the hexbeam to provide 6-10ft of separation between the two antennas. The
M2-6M3 would be very close to the rotor so no real issue there.

My concern is that this additional 10ft of mast would be non-guyed and
therefore any windload of the hexbeam would be on a 10ft torque arm and
applied directly to the Alphaspid.

Am I over thinking this or is this a problem?

Thanks

jim ab3cv


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