I'm not sure there's a solution to my problem. I go to an island in the summers and I'm looking to hook up my computer. I have a friend on the mainland who has wifi and is willing to give me a password in exchange for fish.
Now all I need is to figure out how to reach his network at half a mile away. It might be slightly less than that, say as close as .25 and at most .5 miles.
I see routers being discussed, I wouldn't need a router, but it'd be a bonus to have that be a method of range extension. Right now it's just my laptop, but having the ability to hook up a 2nd comp wouldn't be a bad thing.
You'll need Line of sight between the two points. Then external high gain antennas on both ends. One your friend's end you will need to hook the high gain antenna to a router. On your end hook the high gain antenna to a bridge. It'll work ... how well I'm not sure. Currently we are connected via wireless to a neighbor 700 feet away with a high gain antenna on our end only. Going four times that you'll need an antenna on both ends.