[TG] Commission ST70 X10 Pilot

[Tom - Raymarine - Moderator]

Hello John,

If the pilot works normally except for the heading offset then almost certainly there's no fault.

Fluxgate-compass based pilots like yours don't detect where north is as such, they just detect a relative change in heading. We programme an arbitrary factory default that gives roughly-correct heading when the fluxgate is mounted in one orientation (on a transverse bulkhead facing forward, from memory), however when mounted facing port or starboard the heading will be approximately 90 degrees out, and when facing aft the heading will be 180 degrees out. It's a normal part of installation to set the correct compensation offset, but it seems that your pilot has lost that calibration and needs to be re-configured.

When you say that the pilot will not let you select options, how far do you get? At what point does it go wrong? Can you get into Seatrial Calibration? Remember that you can't calibrate the pilot when it's in use (Auto/Track/Vane/Power Steer modes), you must be in Standby.

The problem is definitely not the ST70, that's purely a display and has no intelligence inside and stores no pilot calibration. Like I say, if the pilot works otherwise then I'm pretty confident there's no fault.

Regards,
Tom