It does. I had one when I lived on a sailboat. I’ve been able to get consumer grade routers to broadcast 3km with line of sight, ddwrt, and no physical modifications. Somewhere like an ocean (or a desert) you won’t have much, if any, interference.

How many bits per year was your throughput?

In the case of the router, it was going through a 1mbps satellite uplink, so it didn’t need to be fast (though it was still fast, at -50db IIRC, it’s the SNR that matters). In the case of the directional antenna on a boat, I got regular speeds just tons of dropped packets. I have no idea how far I was from the routers, but I couldn’t see the houses.

What about Cellular data from LTE towers etc? They can reach miles and unlikely there is any out at sea. Probably all using their phones as hotspots rather than trying to connect to a Free Starbucks Router.

Yes. Those can reach. My comment was saying that the claim it was for WiFi didn’t make sense, although, I figured at the time they meant cellular data.