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Building an Array from 12 Yagi Antenna's (30 degree)


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How would I go about Merging 12 - 30 degree Yagi antennas into a 360 degree array?? I don't want to degrade the signal quality.

Would I just solder the cables Ito one cable?? What about frequency Collisions/ Cancellations??

Any links to information, of assistance is greatly appreciated.

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1st. An array is always a 2^n elements. ( 1,2,4,8,16,32,.... )

2nd they should point in the same direction. Otherwise you dont get a amplification of the signal.

Some basic info: http://en.wikipedia.org/wiki/Antenna_array_%28electromagnetic%29

Now if you want to extend your range in all directions. You need to build a antenna like Darren & Shanon did.

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Basically what you want is the range and sensitivity of a yagi, but not the directionality. There are devices out there that work with multiple antennas, I think that's typically to transfer data across multilple (different) channels so then each antenna would have to have its own radio. If that's the route you need to go, get 2 6-port (probably powered) USB hubs and put a USB wireless device with a removable antenna on each port. Connect one yagi to each empty antenna connector and attach the usb hubs to your machine.

I don't think you can cut corners by simply connecting all the coax cables together (wouldn't the power of the radio be at least spread out over all the antenna's so you'd end up with 1/12th the power for each one, or is that transmission only?), but feel free to try. Keep some distance between the Yagis though, or they might interfere with eachother. They're directional, but they do have effects on the direct area around the device.

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Basically what you want is the range and sensitivity of a yagi, but not the directionality. There are devices out there that work with multiple antennas, I think that's typically to transfer data across multilple (different) channels so then each antenna would have to have its own radio. If that's the route you need to go, get 2 6-port (probably powered) USB hubs and put a USB wireless device with a removable antenna on each port. Connect one yagi to each empty antenna connector and attach the usb hubs to your machine.

I don't think you can cut corners by simply connecting all the coax cables together (wouldn't the power of the radio be at least spread out over all the antenna's so you'd end up with 1/12th the power for each one, or is that transmission only?), but feel free to try. Keep some distance between the Yagis though, or they might interfere with eachother. They're directional, but they do have effects on the direct area around the device.

Pretty much. OP will need a separate radio for each antenna. We used to do this back in the wardriving days, then tell kismet to only scan certain channels on different radios. That way you were scanning all channels at the same time, or close to the same time.

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