I have loaded Opencpn
and purchased a GlobalSat BU-353S4usb GPS
receiver. What I learned is this does not work
with Mac OSx Mojave 10.14.6, it does work
with Mac OSx 10.1-10.6. Did lots of reading on this site and on the web. I cannot find anything other than the mentioned GPS
receiver, which does not work with the operating system I have. If anyone has had success with a GPS receiver using Mac OSx Mojave please share. Meantime I am using inavx
on the iPhone
but would much rather have the larger viewing platform.