Thanks for the info.
I recently had the chance to test the TRIDENT at sea for the first time in a proper way. Reading this tread of posts I understood that the Trident need to be calibrated before a dive. I did spin the rov around the 3 axes and the heading I read on the singularity pad seems to agree with analogical compass directions. However I noticed that as soon as I put the rov in the water and I start diving the heading readings become unreliable.
After some trials I had the impression that when the trident change inclination, mainly up and down, the heading is altered even if i did not change the direction compared to the north. This basically happen almost all the time since I frequently need to adjust the pitch (up and down) even when moving left and right.
Today I tested it again and what I noticed is that, even if calibrated, at some point the reading on the compass go off. However when I retrieved it was still point north correctly.
If I do not calibrate it, as someone was proposing here, the heading go off pretty soon.
The consequence is that I can’t really figure out where I’m going and I end up doing random dives.
Is this a problem just of my unit or It’s me doing something wrong?
Thank you very much.