Because the controller tends to miss and thus miscount the pulse
counting signals from the rotor and winds up displaying a different
direction than the antenna is actually pointing. Also, the circuitry in
the controller that provides the counting signal is noisy. In my case at
times I couldn't hear anything while the rotor was turning. Replacing
the stock controller with a Green Heron cured that problem as well as
the miscounting issue.
The stock clamp does indeed slip no matter how it's torqued.
Les W2LK
On 8/26/2018 7:38 PM, Jim wrote:
I have an older OR2800 with the M2 controller. Used it with N1MM and never
had an issue of any kind with the rotor or controller.
It works great! I had it on a TH7 with a XM240 above it on a 70' Rohn 45.
Stock mast clamp. NEVER did it slip in the 14 years I had it up.
I'm puzzled why you would think the mast clamp and controller are junk?
73
Jim W7RY
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
john@kk9a.com
Sent: Sunday, August 26, 2018 3:03 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Big Rak and HDX-555
From what I have read on towertalk, it is a good rotator if you throw away
the mast clamp and controller.
John KK9A
From: Kent Olsen <kilo6dko@gmail.com>
Date: Sun, 26 Aug 2018 08:14:01 -0700
Phil
I went with the M2 Orion 2800 rotor. It fits in the tower completely. It has
been up for 3 years with a SteppIR DB36 with a NN4ZZ tilt plate. This is a
very heavy combo, I have not had a bit of trouble.
Thanks
73
Kent
N6WT
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