Originally Posted by Windmagic
I am not on the yacht at the moment , I am using the std USB cable that it came with to set it up with . The baud rate is 38400 . It works fine with the software it came with but doesn't work with open cpn .
Do I need the neamea to USB cable in order for it to work with open cpn ?
You do not say if you have disconnected the setup software first.
USB cable data can be read by only one App at a time: when your setup software is connected to the COM port, OpenCPN will not see this port. It is better NOT to start this software at all (rather than shut it down) as at times Apps do not free the port correctly, which is rare but worth remembering. You can see the assigned COM port in your OS settings under hardware
The way to test the USB cable direct method is:
- connect the unit to the PC with the USB link cable,
- make sure no other software is using the generated virtual COM,
- go into OpenCPN connections tab and try to pickup the COM port there,
Then go into the serial port / nmea monitor
in OpenCPN and see if there is a data flow.
Someone above mentioned baud rate 38400 and this makes sense but I cannot tell you if this is indeed the speed. I cannot remember the manual specifies this. Check out the manual. Otherwise yes AIS data is best sent at 38400.
The manual clearly shows the preferred method is thru the data/power wires. It does not imply the direct USB cable method does not work but it does not say it works, either. If I remember well, rs422 to usb standard is how your cabling works.