Project Byzantium: Zero To Ad-Hoc Mesh Network In 60 Seconds (Video)
Project Byzantium calls itself Ad-hoc wireless mesh networking for the zombie apocalypse. It's also potentially useful for less-thrilling emergencies, such as floods, earthquakes, and political uprisings (or getting everyone at the office their /. fix when the network goes down). The latest version debuted at the HOPE (Hackers on Planet Earth) conference in July, 2012. You can download your very own copy of Byzantium any time you like. Hopefully you will then burn a dozen or so CDs (it's compact enough that it doesn't need a DVD) for friends and neighbors, so that if you suddenly see zombies approaching and your regular ISP has already been overrun and isn't working, you can set up a wireless mesh network and coordinate your anti-zombie efforts. And you won't even need to use the command line. (slides and audio of their presentation)
Why not simply flip your WiFi port from 'infrastructure' to 'ad-hoc'?
Ken
Put the antenna higher up or use a directional one. Absorption by the environment is usually even worse than inverse square losses.
With clear line of sight and no Fresnel zone obstruction, a quarter mile should be completely possible. Look up the distance record, it's remarkable.
9dbi antenna and external wifi adapter FTW (the last I tested worked well upto a mile in the boonies)
You are assuming that my neighbors are in any way tech savvy? The guy closest to me was taken by surprise when the TV system went digital.
Some days I get the sinking feeling Orwell was an optimist.