Originally Posted by Ndavies
I think I could have used the NMEA
out from the chartplotter
but I had the box and that also gives me the option of using a laptop
via the serial
If you had used NMEA
183 right from the plotter, you would have lost
the extra nmea port available with the box (important only should you have more NMEA 183 devices onboard).
This is because the Vesper device offers just one NMEA 183 port (so once taken up by Ray, you run out of NMEA 183 options).
With the box in between you get one extra NMEA 183 channel. Except for fast data as the box does not interface 38400 NMEA 183. No issue as the only fast data you have is already incorporated in the AIS
This fact gave us a headache when we attempted (and failed) to interface a fast gps
sensor via the box.
So, how you wired things is probably the optimum method given your hardware