I also wanted to copy the list.
73 de Gene Smar AD3F
Sent from my Radio Shack TRS-80 model 100 laptop
----- Forwarded Message ----- From: "Gene Smar" <ersmar@verizon.net> To:
"Mike Smith VE9AA" <ve9aa@nbnet.nb.ca> Cc: Sent: Tue, Apr 21, 2026 at 3:22 PM
Subject: Re: [TowerTalk] Short Top Section for Attic Installation I'd been
thinking about the same issues. Instead of ice on it, what if the steel boom
gets hot in the summer sun and the rubber boot adheres to it? When the mast
turns the boot might rip, or at least wear a bit, allowing water in. PVC vent
pipes don't rotate and don't have this problem.
Putting the rotator outside and above the roof penetration would eliminate this
problem. The rotator would need a "lower mast support", which would block you
from feeding the coax and control wires up through the mast.
It is puzzlement.
73 de Gene Smar AD3F
Sent from my Radio Shack TRS-80 model 100 laptop
On Tue, Apr 21, 2026 at 3:00 PM, Mike Smith VE9AA via
TowerTalk<towertalk@contesting.com> wrote: I find these antenna discussions
fascinating.
Mechanicals aside, how would you weather -and- insect proof such an affair?
In my neck of the woods, I'd also be worried about it icing up, then turning
it and (unknowingly) ripping the weather proof barrier/boot or roofing
shingles all apart.
Secondarily, how would you replace the "rubber boot" (or whatever) down the
road?
Many years ago now, in CQ or QST magazine there was a mobile VHF contest op
who had a system like this...mast through the roof of his van(?) and the
rotor inside on the van floor (I think). Maybe someone recalls the
details.
As Artie Johnson (1960-70's TV show-"Laugh in") used to say : "Very
interesting"
GL
Mike - Keswick Ridge, NB, Canada
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