"Ric" wrote in message
...
Like Steve below, I need to get HDM into my Furuno radar. Can I take this
direct from my fluxgate compass? Does anybody know if the Rayamrin
fluxgate
compass output their data in raw NMEA, or is it an analogue signal which
is
then interepreted into NMEA by the Autohelm?


Hi,
You may find some useful info he
http://brookhouseonline.com/NMEA%20c...20diagrams.htm
Cheers,
Wout