ST60 Wind Linearising and aligning transducer at the dock

[beckett]

Thank you for your reply. My ST60 developed another issue after I performed the linearising procedure. Everything was working well but after I power cycled the instruments off and on again the wind direction indicator and the speed was running wild and all the place, the speed direction indicators. I went into intermediate calibration step and I notice that my ST60 alternates and shows r0 and r1 after a few seconds. I wonder why? It should just show r0 as this is my master unit and my other ST60 CH should be r1, right? I ran the self-test on ST60 and all 4 stages were OK.