[TowerTalk] Big Rak and HDX-555

[Grant Saviers]

My stock Orion hasn't slipped.  Big 40m Moxon and 86' 80m dipole, 6 
years.  Alloy 2" mast.

Use a torque wrench and re-tighten a few days later to take out the 
initial relaxation and yield.  Most don't do either and some slip.

Has anybody ever broken the stock casting?  My guess it is malleable 
iron and try an upgrade of the 3/8-24 bolts from stock grade 5 to grade 
8 and apply almost 50% more torque.

My Yaesu clamp works and the Orion is super heavy duty in comparison.  
No way the yaesu aluminum die casting can apply the clamping force of 
the Orion.

Grant KZ1W


On 8/26/2018 19:27 PM, Les Kalmus wrote:
> 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 at contesting.com] On Behalf Of
>> john at kk9a.com
>> Sent: Sunday, August 26, 2018 3:03 PM
>> To: towertalk at 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 at 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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