[CA] [CA11] Autopilot heading and COG intermittent mismatch

[Chuck - Raymarine - Moderator]

Roy,

The COG (green vector) appears to be fine. However, there definitely appears to be something wrong with the heading (magenta vector) supplied to the system. As the heading is changing as shown within the photos, it is recommended that you inspect the areas above, behind, and to the sides of the EV-1 CCU to ensure that none of the magnetic field producing items within the FAQ found here are within three feet. If so, then move the items or relocate the EV-1 CCU. It is also recommended that you verify that the autopilot has been updated with the latest available Raymarine product software updates and if not, the software within these items be updated accordingly. Upon completion of the latter and whether or not a software update was required, it is recommended that the actions specified within the FAQ found here be undertaken. Upon completion of these actions and should the reported symptom persist, then please respond with the value of the maximum deviation detected by the autopilot (MENU->SET-UP->DIAGNOSTICS->ABOUT PILOT->DEVIATION).