[CA] [CA11] Fluxgate compass upgrade to EV-1

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Dfurney,

The EV-1 CCU cannot be installed as a spur to the backbone to function as a replacement heading sensor for your ailing SPX30 Autopilot. The EV-1 CCU combines the functions of heading sensor and course computer into a single device. Installation of an EV-1 CCU would additionally require:
- replacement of the SPX30 with and ACU400
- replacement of the ST70 autopilot control head with a p70S or p70RS autopilot control head or addition of a p70S or p70RS autopilot control head. While the ST70 autopilot control head may be retained for use at second station, a p70S or p70RS autopilot control head must be used to configure an Evolution autopilot.