[CA] [CA11] Aligning compass to GPS

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Reid,

Focus needs to be paid back to the vessel's autopilot installation, software level, and commissioning. The indexing arrow atop the EV-1 CCU must be pointing forward and parallel to the vessel's center line ... this should be verified. Please verify that the software levels of autopilot components (EV-1 CCU, p70RS Autopilot Control Head, ACUxxx) all be determined and that they, as well as the MFD's software be updated if any are found to be not to be operating with the latest available Raymarine product software update. Whether or not any of the autopilot components are found to have old software, it is recommended that a Pilot Factory Reset be perform, that the Dockside Wizard be executed again, and that the cruise to determine deviation be performed again ... the latter is not accomplished by turning in a circle. More detailed information concerning these steps may be found within the FAQ found here. The autopilot must complete "Detecting Magnetics" to perform properly and as indicated within the FAQ referenced therein, attention must be paid to the maximum deviation sensed by the EV-1 CCU and that the EV-1 be relocated if the maximum deviation is greater than 10 degrees. Ensure that the MFD's units set-up has been configured to report magnetic bearings. This preference will be communicated to the autopilot components via the system's SeaTalkng / NMEA 2000 network. Should the vessel have a properly calibrated compass, then I would typically recommend that the vessel be tied to the dock and then that the autopilot's heading be configured to match the compass's heading.