I have an Alfa booster and mini wireless router that are in a waterproof box on top of my bimini
. You can buy it on amazon and put it together yourself for a fraction of the cost of buying
the system ready made. You will need a 12v power source which for me was the cigarette lighter plug
at the helm
station on my catamaran
. You will then have wireless internet to multiple computers
inside the boat without having to run a cable inside and hard wire to a laptop
Mine works great and pulls in signals from some distance away. The only problem is finding an unsecure network upstream.