I'm looking for an older and inexpensive plotter that will be compatible with my Garmin GMR 18 xHD. I need to test the radar which might be the cause of some issues with Ocpn. I can't really have a discussion with Garmin without that test. Ebay has Garmin 5212, 188C, 298, 740S and 431S for decent prices. ARE THEY COMPATIBLE?
No idea, but I used openCPN. Cost: $0. Same Radar.
I had to make an ethernet cable jumper, which was easy, but might require some head-scratching for those who aren't familiar with soldering. Admittedly, open source is significantly harder to setup. Google or ask me if you're interested. Good luck!
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