[CA] [CA11] EV-1 Cycles 360 Degrees (Even While Docked)

[Chuck - Raymarine - Moderator]

DAL,

The GPS HDOP is high for whichever MFD's GPS receiver has been selected as the system's GPS data source. High HDOP will cause relatively large random position errors and accordingly result in detected vessel movement (which in turn will produce COG) when the vessel is stationary. In system installations which do not afford the MFD functioning as the system's GPS data source an unobstructed view of the skies overhead, an external GPS sensor (ex. Raystar 150 GPS Sensor, etc.) may be required ... as appears to be the case within this system. The external GPS sensor would be installed in a location affording it an unobstructed view of the skies overhead. Should the MFD functioning as the system's GPS data source be installed in a location affording it an unobstructed view of the skies overhead, then it would appear that the MFD's internal GPS receiver is not functioning properly and should be sent to Raymarine’s Product Repair Center to be bench checked / serviced.