AIS500

[Chuck - Raymarine - Moderator]

Bill,

Per our phone conversation, SeaTalk communications alone with the autopilot will support supplying the MFD with 1Hz heading data. 10Hz heading is required for use of the MFDs MARPA features as well as to maximize the MFD's other heading dependent features. It appears as though the AIS500 may have been incorrectly installed within your system. Only the AIS500's 38400 BAUD NMEA 0183 leads should be interfaced to the MFD's NMEA 0183 Cable. The AIS500's 4800 BAUD NMEA 0183 output leads should be interfaced to the 4800 BAUD NMEA 0183 input leads of the DSC VHF radio. If not interested in having the MFD plot DSC position reports (these may be received from the VHF radio), then the AIS500's 4800 BAUD NMEA 0183 input leads may instead be interfaced to the X30's NMEA 0183 output port to supply the MFD with 10Hz heading data. In the absence of heading data (verified by examining the MFD's "Heading" data item, the MFD will utilize COG to orient the vessel icon.