Hello @rnr,
Let me start by pointing out that Postition Hold mode on the ROV is not stable, and is still in development.
That aside, you should still be able to get an accurate position of the ROV while operating in the other modes.
- You should disable/remove the onboard GPS. It will conflict with the Water Linked system.
- Please let us know more about the coordinate system problem. If the coordinate system is labelled in more than one place, it should be the same. Maybe pictures of the labels will help.
- Please show the two readings that you are referring to, and make sure that you are using the latest companion software.