DIY Friday: Wireless Internet Cantenna
For those of you who are unaware, a Cantenna is “a directional waveguide antenna for long-range Wi-Fi used to increase the range of (or snoop on) a wireless network.” WiFi antenna designs are almost limitless – you can use a mineral water bottle, a cable antenna, a pringles can, a fire extinguisher, a kitchen steamer, or a cooking strainer and thumbdrive. Leave me a comment if I missed something.
The most common design utilizes a simple tin can, an N-Female chassis mount connector, and some thick wire. Instructions are available here, but the process is fairly simple: “1. Collect the parts; 2. Drill or punch holes in your can to mount the probe; 3. Assemble the probe and mount in can.” If you want to optimize different size cans, the (somewhat complicated) math is described here.
For a good overview of WiFi antennas, check out this excellent episode of Systm:
But, since Really Rocket Science tries to push the DIY-limits (and since we really like satellite dishes), try “hot-rodding” a basic can-Cantenna by adding an old satellite dish. Instructions are available here – let’s just say it takes a fair amount of creative ingenuity. It’s for the DIY-expert.
And, as usual, you could just be lame and buy one.
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Wireless internet is really great, i always use wireless internet at home and the coverage and the bandwidth is great. ,.’*:
Wifi antennas that are made of silver or silver coated seems to give the best performance. ^
Actually the sat ant are iriduim, they are used in the sat phones ant too.
Wireless internet will become even more popular because people love to travel a lot.
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