"Pascal" wrote in
oups.com:

Matt,

If the C80 can get waypoints and routes from the NMEA messages
GPWPL/GPRTE, than if I connect directly my Garmin in the serial port
sending these messages to the C80 it could read these messages and
them, I would not need the CF card reader/writer, yes or no?

Thanks

Pascal



Probably not. The serial port is RS-232C. Ones and zeros are +12V and -
12V levels. NMEA's bus, in their infinite stupidity, used RS-422 standard
because it's cheaper to build a data system that uses 0V and +5V for zeros
and ones. Your serial port "may" respond correctly, but again it may not
because the voltage levels on the bus are all wrong.....sorry.

They didn't want you to hook it to a computer....They don't MAKE and SELL
computers....