It's hard to say whether the water has anything to do with my rotator's
current failure to turn. Internal insulation looked fine, but I
measured 60 ohms between the two motor leads at the bottom of the tower
- if the rotator is up against the limit stop (as I think it is), then
the limit switch should have opened and there should be no connection at
all. From memory, I think the motor winding should have been around 8
ohms. Looks like the antenna needs to come down to determine where the
problem is...
73, Pete N4ZR
On 7/17/2024 10:23 PM, john@kk9a.com wrote:
I use THHN for the motor wires and a multi-conductor for the sensor. I try
to seal the cable ends but I do not make a big effort to seal them. I have
never noticed water in any of my control cables but even if there was, I
don't see how water inside the PVC cable jacket would effect it since the
conductors are insulated. If water got inside the connector at the rotator
it would likely have an effect, this is common with Yaesu rotators, their
boot does not make it water tight. I have had very few actual rotator
problems but I have had several issues in the last few years with failed
lightning protectors. Pulse type seem especially sensitive to leakage.
GL
John KK9A
Pete Smith N4ZR wrote:
I've been having problems with my rotator, currently stuck due west.
Today, in order to verify connection from the controller in the shack, I
cut open the jacket of the good quality 6 x #18 cable at the tower base
- imagine my surprise when water flowed out of the cut, even though all
the cable above that point is vertical.
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