That sounds pretty darn interesting
One point I am missing - so you have a 38K output from DSC/AIS and 4.8K output from Seatalk/NMEA. How do you put both those outputs onto a single bluetooth converter?
As an aside, what I'd really like to see is NMEA2000 to bluetooth converter. Literally raw data encapsulation - CAN bus packets minimally wrapped (length, magic number), sent over bluetooth for computer to read and process as needed. I am sure NMEA would never certify this - but who cares, that'd be a great way to interface software with NMEA2000 stuff. But I digress.