WiFi is DESIGNED to be a short range transport. What you need is a Wireless Ethernet Extender. There are some that can transmit up to 10,000 feet. Of course the further you go, the weaker the signal, and the slower the speed. It’s doable. Once you get the signal from one point to your venue, then you install a WiFi access point in your venue.
I would think the cost of putting up 2 directional antennae, along with rock-steady mounts to keep them aligned, would be well in excess of several thousand dollars to go that far (half a mile) . I've seen wireless extenders go building to building (less than a few hundred feet), but never 2500'.
You'd need power drops along the way. Probably easiest to lay an external Ethernet cable, but 1000m of outdoor rated cable is going to run $700-$1000 and is subject to easily being cut. The $100/mo to drop directly from the road is probably the cheapest long-term and the most reliable.
I have not done this for 10 years or so, but I would think a couple of wireless bridges would not cost very much. This product claims to link 2 buildings as much as 3 miles apart (line of sight)...
What I was trying to say was the tech is there, but 1/2 mi requires a level of accuracy in mounting and maintaining directivity that isn't there as much 300 feet away. Add trees and storms and it just doesn't seem practical unless there is no other option.
OK... but for a couple hundred bucks he could give it a try, and if they don’t work, send them back. Nothing ventured, nothing gained. He can always ask his network provider about installing another drop, but I’m pretty sure I know how that would work out.
You're talking about a distance of nearly a half-mile.
