Diy wi fi antennas are referred to as "Cantennas" because of there use of a tin can to pick up single direction frequency for miles. my buddy built one of these, and we didnt think it worked at first until he climbed on the roof while I sat at his computer shouting back to him when we picked up a signal. we ended finding one, and he lives in the middle of nowhere, so just out of curiosity, i grapped my windows mobile phone which has a wifi finder in it, and drove around until we found the siganl we were using. it turned out to be an apartment complex almost three blocks. It was interesting.. if ytou would like to find out more type in "cantenna" on instructables.com. id provide you with pics and such bu the websites plocked at my work cus of there hacking instructions most likely.
QUOTE (jonjandran @ Jul 15 2008, 07:33 PM)

Hacking the Netgear WRT54G wireless router with custom firmware that allows you to almost triple the signal strength is done all the time :
http://lifehacker.com/software/router/hack...uter-178132.php