I have a TIC ring on the way and already have the Green Heron
controller. TIC is offering them as an option now. I already own two
other Green Heron controllers and they are excellent.
Jim Idelson wrote:
> Yes. It is true. The Green Heron Controller does perform miracles.
> For several years, I've been turning my big Optibeam OB4-40 4-element 40m
> with a TIC Ring Rotor. The rotor uses a single drive motor. With this setup,
> I've continually experienced the same problems of 'slipping' and losing
> calibration reported by many others. While some have been able to tame the
> rotor by getting it tweaked 'just rght', I have never been able to achieve a
> stable installation. We have never made it through a major DX contest here
> without my having to climb the tower and reposition the antenna and
> the TIC Ring and controller.
> About two months ago, I spoke to Carl at TIC General about this problem
> [again]. Although he insisted that a single drive motor should be enough, I
> insisted that I wanted to try the solution that others have found effective -
> second drive motor. He didn't have any motors in stock, though, so I would
> to wait. Well I waited and never heard from TIC. But, in the weeks leading up
> to the ARRL DX CW COntest, I was talking to Jeff W2FU about his plans for the
> contest. I mentioned the 40m rotor problem and he suggested that his
> could very likely be a solution to the problem. He insisted that I try one of
> my RT-20's on that rotor and see if things got better. I put a Green Heron in
> and took the TIC controller out of the station setup.
> The results have been nothing short of a miracle. The Green Heron controller
> uses PWM, ramps the motor up to speed slowly, and ramps it down to a gentle
> stop as it reaches its destination heading. These advanced rotor control
> features have completely resolved the rotation issues I've experienced with
> 40m installation. The rotor operated perfectly throughout the CW weekend. I
> convinced that I don't need to buy that second drive motor for the TIC Ring.
> Jim Idelson K1IR
> email k1ir at designet.com
> web http://www.k1ir.com
> CQ-Contest mailing list
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