I’ve been using the Yeasu G-5500 DC rotator for about a year now.
In the last few weeks, it has started to develop an issue with the azimuth encoder reading. The azimuth needle on the controller was jumpy when the azimuth motor was moving, even the physical movement itself was smooth. I’ve measured the voltage coming from the rotator and the voltage was jumpy as well.
This causes a problem when moving the rotator to a position. For example, when I’m trying to move the azimuth to 180 deg, the rotator would stop before it reached 180 deg physically since the voltage input from the rotator was slightly higher momentarily (showing 180 deg before reaching 180 deg).
I’ve put a video on Youtube to show how the needle reading on the controller moves. The movement on the rotator itself was smooth but the encoder voltage reading was not.
Do you know if this can be fixed? The elevation motor was fine, only the azimuth is having this problem.
I’ve used the older G-5500 AC model for a long time before this and never had this issue. I would appreciate any help from you to sort out this issue.