I almost passed over this one, since it’s another cantenna. With the software the Adrian wrote, it’s a fully functional directional wifi scanner. The system can pan and scan a region and visualize the results. Scan resolution can be varied, similar to a regular image scanner. It’s built from a pair of stepper motors ,a PIC on a SIMM stick with a serial interface.
The link is dead to the steerable cantenna scanner page. For general cantenna info try – http://wireless.binarywolf.com/pringles_cantenna.htm
Found a copy:
http://smith.geekfishing.net/steercan/Steercan.htm
And variants are possible still?
http://web.archive.org/web/20070324051034/http://www.smithstuff.net/steercan/Steercan.htm
Here is a link to the original article with pictures..
http://web.archive.org/web/20070324051034/http://www.smithstuff.net/steercan/Steercan.htm
Sorry for redundant comment. I tried to delete it..