ES128 to/from VHF DSC via NMEA

[Chuck - Raymarine - Moderator]

Bill,

Should the MFD have been only interfaced to the VHF radio using the MFD's NMEA 0183 Port 1 OUT leads (yellow and brown), then there would have been no way for the MFD to have received any DSC position report communications from the VHF radio. By additionally interfacing the MFD's NMEA 0183 IN leads (white and green) as you have specified, then the MFD should indeed be able to receive and respond to NMEA 0183 DSC/DSE sentences transmitted by the VHF radio's NMEA 0183 output leads.