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Wireless "Sniper"
Submitted by linuxpenguin on April 25, 2006 - 12:39am.
i remember hearing about a home-built "sniper" some security company built. It was actually for bluetooth, but it could read a bluetooth signal from over a mile away. Not bad considering usually bluetooth devices need to be pretty close to transmit/receive data.
I'm sure you can get much more distance from a wifi connection, if you really tried.