I really just want to sit at anchor in a harbor and get WiFi from a local source. The Alpha Networks I had worked great with my PC allowing me to pick up a signal from mile or two away. It plugged in with a UBS jack and I could attach the 6 inch antenna to the dodger and sit at the nav station to surf the web. That would suffice for me. But I can't down load the Alpha software for my Mac, which even on their website is described as a problem that they are working on.