Thanks for the info, John.
My problem is starting torque for the SteppIr with 40 M dipole mod. he T2X
worked FB on the TH6DXX but now the existing rotor seems to be very fussy about
the alignment from the rotor thru the TB3 at the top plate. In some
directions, the beam will just not turn. I have to be sure to NOT leave it in
that position or I will make a trip up to assist while the XYL uses the control
box. I think the imbalance is also part of the issue and adjusting the shelf
to adjust the alignment is not working out.
So, I either somehow fix the alignment, if that is really what is the problem,
or get more starting torque. I will review the HDR specs to ensure it is
indeed better. I do not think this SteppIR is a test for the HDR300 since the
yagi is modest and I am not dealing with big-time winds. Was it the key or the
keyway?
Thanks for the words.
Al
N6TA
----- Original Message -----
From: john@kk9a.com
To: TowerTalk@contesting.com
Cc: al n6ta
Sent: Tue, 10 Nov 2009 14:05:59 +0000 (UTC)
Subject: Re: [TowerTalk] HDR3-00 on the AS455G shelf?
About two decades ago I had two Hy-Gain HDR-300 rotators and I don't recall any
bolt hole issues, however I do recall a lot of problems. The biggest issue was
with the keyway on the shaft wearing out and needing yearly replacement. If
the T2X is not up to your task, I doubt that the HDR-300 will be.
John KK9A
To: TowerTalk
Subject: [TowerTalk] HDR3-00 on the AS455G shelf?
From: al_n6ta@comcast.net
Date: Tue, 10 Nov 2009 05:25:10 +0000 (UTC)
My T2X is not quite up to the task anymore so I thought I might replace it with
an old HDR-300 that I have had in storage for 25 years. Anyone know if it will
fit the AS455G accessory shelf that suports the T2X currently? If it will fit,
does anyone hae a guide as to where to poke the new holes for the 300? I just
cannot find a dimensioned drawing for the shelf.
Thanks, all!
Al
N6TA
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