If you want to pinpoint those networks, build yourself a pringles can yagi, buy the pigtail and connectors for it, and start pointing it at things. You'd be amazed.
I am a student at the University of Arizona, we have a building here thats got a nice 10 story view in all directions. I went up there with my laptop and my pringles can, and I found networks simply by pointing at different buildings, and I could maintain connection with them as long as the can was pointed in that certian direction. It was very cool.
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"Sell Crazy Somewhere Else, We're All Stocked Up Here," Jack Nicholson - As Good As It Gets
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