I have an old Emoto that has a solenoid brake. Works a bit different to
the CDE/Hygain/MFJ but similar idea I think.
The big Telrex has a double worm drive to chain output drive. Any
attempt to reverse that would likely result in slowing down or speeding
up the earth's rotation! No solenoid brake needed on that.
Martin, HS0ZED
On 04/12/2018 22:47, john@kk9a.com wrote:
Does anyone besides Hy-Gain use brakes in their rotators? With the right
gearbox brakes are unnecessary.
John KK9A
From: "Kenneth Goodwin" K5RG wrote:
I wonder if your inability to rotate isn't the ye ole stuck wedge brake
problem. For example, a Green Heron controller will initially move the beam
in the wrong direction and then a few seconds later initiate the counter
rotation to the desired heading. The T2X wedge brake sticks almost all the
time. When I use a standard Hy-Gain controller, I will initiate releasing
the brake a few times to unstick it. Sometimes the Green Heron's scheme
doesn't unstick the wedge brake (rare but usually after a good wind storm)
so I will plug in the old Hy-Gain controller and beat on it a few times. I
can hear the brake release since the tower is right outside of the shack. I
will send you under separate cover the two bolt patterns. Ken K5RG
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