Yaesu G5500DC Rotor

[Marcel VE3UKW]

Hi all,

I'm trying to use a G5500dc with Skyroof. rotctld connects and I see messages flying by in the console

rot_get_position called
rot_get_position: got az=133.00, el=90.00
rot_get_position called
rot_get_position: got az=131.00, el=89.00
rot_get_position called
rot_get_position: got az=137.00, el=91.00
rot_get_position called
rot_get_position: got az=136.00, el=91.00

My issue is that elevation goes from 0 to 180 with 90 being level. Skyroof  reports it like this

In the screenshot, Elevation of a sat is reported as -61. Assume this means 61degress below horizon. For the controller, this would need to be 90-61degrees.

I tried setting elevation offsets in the UI but that doesn't seem to make any difference

This is what I see in the logs:

2025-08-21 00:03:43.048 -04:00 [INF] SetRxFrequency 437780360  (RxReq=437780360  RxWr=437780360  RxRd=0)
2025-08-21 00:03:43.048 -04:00 [INF] SetTxFrequency 145988200  (RxReq=437780360  RxWr=437780360  RxRd=0)
2025-08-21 00:03:43.127 -04:00 [INF] Sending command to CatControlEngine ctld: t
2025-08-21 00:03:43.130 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.130 -04:00 [INF] ReadPtt: False (changed=False)
2025-08-21 00:03:43.130 -04:00 [INF] Sending command to CatControlEngine ctld: f
2025-08-21 00:03:43.131 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.131 -04:00 [ERR] Unexpected reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.237 -04:00 [INF] Sending command to CatControlEngine ctld: t
2025-08-21 00:03:43.239 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.239 -04:00 [INF] ReadPtt: False (changed=False)
2025-08-21 00:03:43.239 -04:00 [INF] Sending command to CatControlEngine ctld: f
2025-08-21 00:03:43.241 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.241 -04:00 [ERR] Unexpected reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.318 -04:00 [INF] SetRxFrequency 437780360  (RxReq=437780360  RxWr=437780360  RxRd=0)
2025-08-21 00:03:43.318 -04:00 [INF] SetTxFrequency 145988200  (RxReq=437780360  RxWr=437780360  RxRd=0)
2025-08-21 00:03:43.357 -04:00 [INF] Sending command to CatControlEngine ctld: t
2025-08-21 00:03:43.359 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.359 -04:00 [INF] ReadPtt: False (changed=False)
2025-08-21 00:03:43.359 -04:00 [INF] Sending command to CatControlEngine ctld: f
2025-08-21 00:03:43.361 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.361 -04:00 [ERR] Unexpected reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.477 -04:00 [INF] Sending command to CatControlEngine ctld: t
2025-08-21 00:03:43.479 -04:00 [INF] Reply from CatControlEngine ctld: RPRT -7
2025-08-21 00:03:43.479 -04:00 [INF] ReadPtt: False (changed=False)
2025-08-21 00:03:43.479 -04:00 [INF] Sending command to CatControlEngine ctld: f

Thanks

Marcel

[Marcel VE3UKW]

disregard - embarrassingly, the problem sat on the cold end of the soldering iron :-(
connecting the wires correctly to the controller was all it took.

Tracking is working but the controller is hunting a lot. Need to stabilize this somehow.

Marcel