I should also mention that line of sight is very important. Buildings and trees really kill the signal quick. For instance, I can connect from inside my friend's house (1 block away)to my router with no problem, as long as I am not in line with 2 small trees between us. With the trees in the signal path, I get no connection. If I walk 25 feet to the side of the trees I get good signal. Keep this in mind before you spend a lot of money on this project. Your coverage will be very spotty at best.