I live on the 12th floor of a very concrete building. The pool is 12 floors below and 25 meters to the left, of my window. The building is thick concrete... to the point that I get NO reception of any TV channels on antennae, because my window faces the opposite direction of every TV tower in the city. I want wifi from the pool. I have a D-Link DIR-655. It has 3 antennas, with BNC connectors. I am looking here: http://www.hyperlinktech.com/web/antennas_2400_in.php What should I get? Are the standard 'range boosters' much better than the stock antennas?