I have a Rohn 25ag2 top section (used); this is the tapered top section that
has a single vertical tube at the top. It appears that the way the rotor and
mast were mounted was rotor on a plate inside the tower a couple feet down from
the top, and the mast running through the inside of the tower section's
vertical tube. Is this a reasonable way to do it? Should there be a bushing
inside the tube (there is none now)? Won't friction be pretty high? Do I
grease the mast? Will it ice up badly? (I live on a very windy, cold, icy
My rotor has an adaptor that allows me to mount it directly to the
section's vertical top tube, but it is not as strong as mounting it to a plate
inside the tower section. This will be a temporary installation for the
winter, 30' or 40' high. I'll have a couple of long VHF yagis on it.
73, Walter, K1CMF
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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