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How to Make a Wi Fi Booster Using Only a Beer Can

http://www.wikihow.com/Make-a-Wi-Fi-Booster-Using-Only-a-Beer-Can Edit Edited by Tom, Glutted, Maluniu, Teresa and 23 others Not only is this clever use of a beer can an ultra cheap tech hack, it also means less fiddling around with cardboard and aluminum foil as required by other hack methods.
http://en.wikipedia.org/wiki/Cantenna

Cantenna

5.5 GHz cantenna as a feedhorn A cantenna (a portmanteau blending the words can and antenna ) is a homemade directional waveguide antenna , made out of an open-ended metal can. Cantennas are typically used used to increase the range of (or discover) Wi-Fi networks.
I love a good hack, especially one that requires me to throw back a cold one before hand (or during). This simple wifi boost has actually been shown to increase signal strength by at least 2 to 4 bars. And, well, I will drink to that. These instructions came to us via WikiHow and we think they are most definitely worth checking out. But here is the most important question: what kind of beer will you use? READ MORE: Intruders Beware: Homemade Robot Can Shoot 1,000 Rounds per Minute (Video)

Boost Your WiFi Signal Using Only a Beer Can

http://news.discovery.com/tech/gear-and-gadgets/boost-your-wifi-signal-using-only-a-beer-can.htm
http://www.presse-citron.net/comment-booster-son-signal-wifi-avec-une-canette-de-coca

Booster son signal WiFi... avec une cannette de Coca

Jeudi 20 octobre Bricolo - 20 octobre 2011 :: 11:24 :: Par Eric Une bidouille toute simple qui permettrait d’améliorer le signal WiFi de son routeur ou de sa box en concentrant ses ondes sur une direction donnée.