[HCARC] Yaesu GA-3000 Rotor Shock Mount

[Gary J - N5BAA]

Thanks Dale.  I have heard of Green Heron Controllers, but for now the Ham 4 
rotor I got from you will work fine with the A4S I also got from you and 
probably will for quite a few years to come.  The only thing I have thought 
about adding is a 6 meter beam, but with the apparent quieting down of the 
sun, I wonder if either 6 or 10 meters will be operative for DX much longer. 
Concentrating on getting a good 160/80 meter antenna up is probably a much 
better idea.  That and one of the listening arrays from Array Solutions.  I 
could put up a beverage, but since my house and shack are literally in one 
corner of a rectangular 7 acres (15 acres if I include my neighbors property 
that I babysit) tends to make my choices for a beverage somewhat 
uni-directional.  I can run one to the 45 degree quadrant bounded by the 
South and the west.  At least I should be able to point to the South Pacific 
and Antarctica and that is good.

73

Gary J
N5BAA

-----Original Message----- 
From: Dale Gaudier
Sent: Sunday, March 16, 2014 10:20 PM
To: 'Gary J - N5BAA' ; hcarc at mailman.qth.net
Subject: RE: [HCARC] Yaesu GA-3000 Rotor Shock Mount

Gary:

I can't comment on the Yaesu G-2800 rotor or its controller (the GA-3000 is 
the number for the shock absorber, I believe) since I have never owned one. 
However, the Green Heron RT-21 controller I use for my M2 Orion 2800PX rotor 
has a function where it electronically ramps down the speed of rotation as 
you get near the stopping point. That prevents the stress you would 
otherwise get if the rotor were to abruptly stop when it gets to the 
stopping point. The controller also ramps up the speed when you start 
rotation to also prevent stress that would occur if you were to abruptly 
apply full power to the motor.

BTW, the Green Heron controller also has a USB port and can be controlled 
directly from your computer. Many logging and contesting programs will 
interface directly to the controller, giving a whole new meaning to "point 
and shoot" when DXing or contesting.

73,

Dale - K4DG

-----Original Message-----
From: Bill Tynan
Sent: Sunday, March 16, 2014 2:35 PM
To: Gary J - N5BAA ; hcarc at mailman.qth.net
Subject: Re: [HCARC] Yaesu GA-3000 Rotor Shock Mount

Gary and all:

No, I don't have one, although I have had a 2800 for abt 15 years. It's the 
best rotator I've ever had. Of course, I don't have a big 4 element 20 or a
40 meter beam, just the 50 ft boom M2 for 6 meters, the 36 ft boom 2 meter 
and other assorted VHF and UHF antennas. If I was to have a big 20 meter 
beam or a 40 meter beam, I probably would be worried abt the shock and would 
have the GA-3000.

My $.02 worth.

73,

Bill, W3XO

--------------------------------------------------
From: "Gary J - N5BAA" <qltfnish at omniglobal.net>
Sent: Sunday, March 16, 2014 9:39 AM
To: <hcarc at mailman.qth.net>
Subject: [HCARC] Yaesu GA-3000 Rotor Shock Mount

> In CQ magazine I saw a reference to a Yaesu GA-3000 rotor Shock Mount
> that is designed to absorb the shock of a large antenna array stopping
> when using the Yaesu 2800 rotor.  It supposedly absorbs the shock of
> stopping thus helping to prevent damage to the turning rings.  While I
> don’t either have an array that is big, nor the ability to mount a
> 2800 rotor in my crank up tower, it was something I have not heard of
> in any of our presentations on antenna towers.  DOES ANYONE USE THIS
> Shock Mount or is it some extra stuff that only the BIG GUNS with BIG
> TOWERS need to be concerned with.
>
> 73
>
> Gary J
> N5BAA
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