So moving on I found an awesome webpage called Poor Man’s WiFi. I must say, this is a masterpiece of an idea. They simply took the dish concept, like from a satellite dish, and put a USB WiFi adapter to it using common household items. For my pseudo WokFi, common items I could fine in my area happened to be a spaghetti strainer, rather than a Chinese cooking vat scoop.
Items I used:
1 Spaghetti Strainer
1 roll of duct tape
1 ruler
->
->
->
Free (graciously taken from wife)
$4.99? (I can’t remember)
$0.99? (I can’t remember)
While if I made a permanent structure it would have much more sturdiness to it, this one worked great. Check out the screen shot pictures. I was able to get a 24% increase in signal strength and 40% increase in link quality. Unfortunately I wasn’t able to get Netstumbler to work with the DWL-122 USB adapter correctly. So actual decibel and wattage information is beyond me. I have estimated by pacing that the distance the signal is traveling is 126.4 feet (38.5 meters). The signal is originating off of a DI-624 AirPlus Extreme-G router, travels through a window, across the yard, and another window.
For more information on DIY antenna design, store bought, and what others have done, visit the links below. There is -TONS- of stuff about it. Especially in the 2.4 ghz band with 802.11b/g equipment.
http://www.cantenna.com/
http://manuka.orcon.net.nz/
http://www.freeantennas.com/
http://www.usbwifi.orcon.net.nz/
http://home.comcast.net/~troarty/wifi.htm
http://www.netscum.com/~clapp/wireless.html
http://www.oreillynet.com/cs/weblog/view/wlg/448
http://reseaucitoyen.be/index.php?SardineCanAntenna
http://www.seattlewireless.net/index.cgi/DirectionalAntenna
http://www.wired.com/news/culture/0,1284,64440,00.html?tw=wn_tophead_2