Join Date: Oct 2009
Location: Swarthmore, PA
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Re: Navigation Software
...I do wish that the program offered a flow thru for the gps info so that we could easily send it to our vhf for the dsc function...
This should be achievable in the operating system, separate from OpenCPN. You can use software to multiplex the incoming GPS signal to two outgoing ports. One goes to OpenCPN, the other goes to a serial port (or a USB-Serial adapter). I have done this in Windows with XPort, not sure what software and drivers would be available for Linux.
However, the problem with this setup is that the computer needs to be on for the VHF to get the GPS coordinates. Ultimately I replaced this setup with a Garmin 18xLVC puck that outputs true NMEA via serial, and spliced the wires to feed the NMEA to my radio and computer. This way the radio gets the coordinates even if my computer runs out of juice.
FWIW, one other thing that OpenCPN does that no ordinary chart plotter can do is to run two instances in side-by-side windows. I do this, with one window zoomed in to see detailed features, and the second window zoomed out to see AIS traffic coming from miles away.
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1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1994 Mason 44 Firefly on loan from my BFF (West River, Galesville, MD)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)
Last edited by TakeFive; 06-17-2012 at 01:39 AM.