Here we have a collection of projects and information that I have written up as a result of working with wireless networks. Unfortunately there seem to be no community wireless projects in London where I can put this knowledge to use, so I generally help abroad or do one-off wireless links.
Most of the information here concerns 802.11b/g networks. These are the networks which operate around 2.4GHz.
Currently there are four wireless standards in widespread use: 802.11b, 802.11g, 802.11a, and 802.11n.