Mac-
I have a UST HDX589 with a SteppIR DB42 (240 lbs., 20 sq. feet wind load) on
top turned by an M2 Orion 2800 rotor. No problems in 5 years, with pretty good
wind gusts here in the Santa Cruz Mountains. Not sure how much larger an
antenna than that you would be putting up there. I did need to use Kurt K7NV's
mast clamp to prevent slipping.
I use Chris KF7P's curved standoff at the top, to avoid a right angle bend in
the cables, but they go through the factory supplied open loops the rest of the
way down. When I lower the tower, I arrange the cables into an 8-foot wide
"figure 8 flake" laying across two lawn chairs. No tangles, and very easy to
raise the tower with no snags.
73,
Steve
N6SJ
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Mac
Sent: Saturday, February 9, 2019 10:46 AM
To: towertalk@contesting.com
Subject: [TowerTalk] HDX-589 rotor and coax arms and why I re-subscribed after
many year hiatus
My HDX-589 tower was built to accept the old Hy Gain HDR-300 series rotor
scheme wherein the mast opening both in the top section and rotor shelf were
offset from the more often used center-line.
I want and have made plans to use a SMALL old time Prop Pitch as the rotor of
choice.
Does anyone have experience using the PP in this offset scheme.
Presently I can't run the tower sections out to a point where I can check or
install the PP, and even then I will want to drill out the rotor plate mounting
hole pattern to accept the PP mounting pattern to keep the existing offset
center alignment.
I feel reasonably restricted to the PP as my rotor of choice due to my
antenna/s wind and weight loading.
In this same question I have discovered these new to me CURVED standoff arms
offered by Chris KF7P, using these has a real appeal to me V. using old time
LOOP arms where when lowered I have a heap of coax and control wiring mixed
with Inverted V coax.
When raising the tower it's a pretty much PIA and nearly always requires
2 persons, myself and an understanding wife with a dog that regrets being in
the middle of the wire heap.
What experiences can anyone share about using the curved arms and your
satisfaction levels. From all that I can see Chris seems to have filled a real
niche in our market needs and support.
73, mac/mc w5mc
>
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|