Over the last two days, I (Don) gave a pair of seminars on opencpn at Shelter Bay Marina. The purpose was to review some of the features I had found useful in opencpn, help people upgrade to Version 5, and provide troubleshooting support. I asked folks to bring computers and then brought Version 5 plus a wide range of maps and charts on a thumb drive so folks could download during the seminars. Satellite charts come as .kap and .mbtiles There have been, and is now an ever growing, collection of satellite charts that are geo registered and can be … Continue reading Highlights from my Opencpn navigation and AIS backup seminars