Hello, I'm new.
I have Openplotter and a NEXUS System with nmea0183. I connect a digital yacht nmea to usb converter. I have config serial device and connection to signal k (4800 or 38400baud). I have not data in signal k. Serial an connection in openplotter are green.
With same configuration and a avnav image without openplotter all nmea date in avnav.

What ist my mistake? Thanks.