GeekCorps Mali now has a roadmap for DIY Antennas and router enclosures,key objectives included local sourcing.
"...designs were made to incorporate materials that are easily available in Mali (plastic water bottles, used valve stems from motorbikes, window screen mesh, television and low cost coaxial cables, etc.) to minimize the technical skills needed to build an antenna and to reduce costs...assembled prototypes demonstrated that these DIY antennas can provide gains and directionality equivalent to low-end commercial antennas which cost about $40 each within the US. These DIY antennas could satisfy the needs of most of the WiFi antenna market in Mali, as well as, in the longer term, the demands of an important segment of the global wireless antenna market. In addition, minor changes to the WiFi designs would make it possible to produce good quality antennas for receiving television signals in the 2-3 GHz transmission band..."
Mobile Phone Towers Could Help Predict Flash Flooding
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Researchers from Tel Aviv University say that they can use mobile phone
towers to predict the intensity of weather derived flooding, before it
arrives. The...
26 minutes ago
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1 comments:
Hey- don't forget USB cookware parabolas! These are usually THE best bang for buck going, especially when costly cables & connectors normally also needed are factored in to. In contrast USB leads are dirt cheap,lossless & easily extend 5m or more (we managed 25m!. See => www.usbwifi.orcon.net.nz
Stan in NZ)
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