I would highly recommend Doug Miller at :
https://onboardwireless.com/
He has been very helpful to me in the past (sorting out AIS issues) and now has spun his business into Marine Internet as a specialty.
Super nice guy and very knowledgeable.
Thanks a lot for this referral. I wish I had found him earlier - his "selection guide" article would have made a lot of sense to me as a new-entrant. The Seabits article was more of a hardware review vs a system approach.
https://onboardwireless.com/What-is-our-most-popular-Internet-connectivity-solution_b_2.html
I originally purchased my router and antenna from 5GStore. They are fine, but their technical support is not great. Also no mention of the male-side of the new style 12VDC power connection so I'm on the hunt for that too. For setup guide, they sent a list of about 35 PDF files with nonsense names, none of which are specific to the router I purchased. They sorta "backed-up the truck and dumped" if you know what I mean. So I ended-up with about 85% of what I needed from 5GStore. Yet another example of a frustrating install.....
For those still reading, my original frustration on this thread is it wasn't much help for a new entrant into the world of long range cell/wifi kit aboard a cruising boat. I simply did not understand that an antenna would have five (5) cables coming out of it (four cell and one GPS). Without knowing this, I simply had no idea what the heck I was buying.
As it turned out, I still need two more antenna for enhanced WiFi reception so will add a Peplink 20G antenna, the two-cable little sister to the 40G I already have. These are supposedly the top-quality antennea available right now, but I could have saved some money and real estate with a single antenna with 6 cables (really, 6 antennae with one cable each, but since they are all in the same housing (Peplink 42G), sort of looks like one antenna with 6-cables).
I ordered the 20G from Doug. I really wish I had ordered the entire package from him.
Thanks again to everyone who helped me.
Peter