I new a guy that had a mast come into his shack so that he could had
turn the antenna. A storm with one big lightening bolt removed one wall
of his shack. It probably was not grounded good enough.

Ron WA0KDS

nonoise wrote:
TimBob wrote:

Anybody ever mount a rotor in the attic and run the mast straight up
thru the roof? Seems like I remember an article in 73 Amateur Radio or
QST about this. I'm considering trying this, theirs a nice pop-out in
my roof for a vent that would be perfect for this. Then the hole would
not be in the main roof, just the small section of the pop-out. Seems
like it would be fairly easy to seal, and could also put a large pan
with a drain line under the rotor just in case any water did get thru.
Any idea's, suggestions? Thanks
Tim N7XAU


TimBob,

This is a great idea: with the shaft coming down through the roof into
the attic, you can utilize the Armstrong[tm} brand of rotors and save a
bundle! Armstrong[tm] rotors are both quicker and more accurate than
other models, since they have none of the servo-feedback delays
associated with traditional units.

You _will_ need to add copper or lead "flashing" to the mast,
constructed so that it overhangs the opening and prevents wind-driven
rain from leaching into the house. A drip pan is always a good idea, but
it's _not_ a substitute for proper flashing. Check the roof timbers to
make sure they're capable of withstanding the wind and/or ice loads the
antenna may place on them; if in doubt, get a professional engineer to
look it over.

William
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