"Larry W4CSC" wrote in message
...
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.

That is nonsense. A line driver chip for RS-232 or RS-422 are about equally
cheap in quantities. RS-422 is much more robust in a noisiy environment
because of it's balanced nature.

Your serial port "may" respond correctly, but again it may not
because the voltage levels on the bus are all wrong.....sorry.

That is indeed the case. It may or may not work. See
http://www.shipmodul.com/en/connections.html for instructions how to connect
a single ended interface (RS-232) to a differential one (RS-422) if you want
to try it, Pascal.

They didn't want you to hook it to a computer....

That is indeed correct. Although Raymarine makes Raytech Navigator, they are
reluctant to get into the computer business. We tried to hook them onto our
USB multiplexers, but they wouldn't. They just went for the serial one, with
the RS-232 interface stripped....... It had "NO PC connection" written all
over it....

Meindert