[CA] [CA11] Upgrading from E7 to Axiom 9 - cables/converters needed?

[Chuck - Raymarine - Moderator]

Michael,

Q. But if your using the Axiom, surely the display will show the magnetic or true heading using the GPS or the auto pilots heading sensor?
A. Unless the vessel is equipped with with a satellite compass or gyro compass, heading data will be exclusively reported from a magnetic north seeking device such as and autopilot/instrument's fluxgate compass, EV-1/2 CCU, or AR200 IP Stabilization Module for Augmented Reality, etc. GPS sensors do not generally report heading, they report course over ground (COG). While heading may be specified in the true rather than magnetic reference frame, the magnetic north seeking device must be correctly compensated for deviation or the resulting true heading will be incorrect.