(DG) ST4000+ and 10 Hz sensor

[Derek - Raymarine - Moderator]

Hi vshtonov

The St4000+must have a fluxgate connected to it even if there is an external 10Hz compass feed into the system, the reason for this is that the ST4000+ uses the fluxgate for it's short term heading control, but then uses the external 10Hz for the longer term heading control.

The Gyroplus must have the fluxgate connected to it for it to work, but even so, the ST4000+ must have a fluxgate connected to it anyway.

The RL70+is only looking at the heading input and doesnot care what the source is, whereas the ST4000+ always wants to have a fluxgate connected to it.
regards