9/2/09 Cantenna Build
ACM SIG-SEC’s first meeting of the semester will be Wednesday, September 2nd at 7:00 in CS209A.
We will teach you how to build a cantenna, a directional antenna build using of can, which you can use to better pick up wireless signals. This is the precursor to our annual Wireless Security Audit which will take place at the following meeting, September 16th. Teams form to build cantennas and compete with each other to gather statistics on wireless access points throughout Rolla.
Bring along a can (pringles, coffee, pirouette, or anything else bigger than a soda one), preferably clean and we will provide the hardware to build the antenna.
For those of you still interested in building your own but had to jet early or just interested in cantennas in general, here are some fine resources available online for you to use.
The main things you need to know are that the placement of the n-connector should be (lambda g) / 4 away from the BACK of the can and the height of the wire from the n-connector should be (lambda o) / 4 tall. There are some nice calculators on the websites above that take the effort out of finding those values.