[TG] ST70 and DST800 speed calibration issue

[Azura]

Thanks for the quick response. I suspected the transducer may be failing, but want to make sure before I order a new one.

So am I to understand that the calibration points that are entered via the ST70 are actually stored in the transducer and then applied to the signal before it is sent out over the Seatalk network?

When I order a new DST 800, would I be better off buying an ITC-5 module and a standard transducer, or should I stick with the SeatalkNG version?