Applications to download

Application Description Link
Open Skipper
Open Skipper is Open Source code for integrating and displaying NMEA 0183, NMEA 2000 and AIS data from nautical instruments, GPS units and internet data sources. See project official page on
You can test OpenSkipper by using NMEA-Simulator by following instructions on Testing OpenSkipper with NMEA-Simulator
NMEA Simulator
NMEA Simulator can be used to simulate real devices on NMEA 0183 or NMEA 2000 bus. With simulator you can e.g. test you navigation software without real devices. NMEA-Simulator.7z
com0com Null-modem emulator. The virtual serial port driver for Windows. For using NMEA Simulator you will need this to connect simulator to e.g. your navigation sw or OpenSkipper. Com0Com/
hub4com With com0com and hub4com one can listen one com port with several applications. This is the only free "com port splitter" I know and it seem to work fine. I have tested it with Open Skipper by using 115200 baud splitting (NMEA2000) and old NMEA0183 splitting. It can also combine several ports to one and send com port over network to other machine. By using our RunAnyService.exe (free for personal use), one can make splitting as service, so that it is automatically started when computer starts.
Here is my sample for using RunAnyService to create service for connecting COM30 and two com0com pairs all together. To use sample modify params on RunAnyService.ini to match your fysical and com0com ports and install service by running RunAnyService /install. You can change parameters by stopping and starting service.