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The Nintendo support site recommends using channels 1 or 11, which are too crowded in my area. I can't find any documentation on which channels the Wii actually supports.

Edit: Screenshot:Screenshot.

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Edit: I'm in Brazil and the Wii was bought in the US. –  Daniel Serodio Jan 16 '13 at 17:26
    
Then your wii only supports 1-11 if you set your router to 12 and 13 if it supports it your wii won't be able to connect. –  Halfwarr Jan 16 '13 at 17:32
    
In your situation I would use 4-6 as its has the least amount of interference based on the graph you posted. –  Halfwarr Jan 16 '13 at 18:19
    
actually, according to the graph, 3 and 4 are unused –  horatio Jan 16 '13 at 22:05
    
@horatio Yes but 3 is going to overlap into 2 and 4. Which is why I recommend 4-6 because the signal coming in for them are really weak. –  Halfwarr Jan 17 '13 at 4:53

1 Answer 1

It would depend on your country more then likely, for example the US has 1-11. While the rest of the world usually has 13, and Japan having 14.

Wikipedia has a nice article about the 2.4 GHz channel (which is what the Wii uses as it is 802.11 b/g) and what your country probably supports.

If you are in the US, The Wii would support 1 to 11. This is controlled by your router settings. What channel your router is set to broadcast at is what channel the Wii is going to connect at and send data through.

Since this is controlled by the FCC on what frequency the wireless devices can use. If it is being sold in the US it is required only to support channels 1-11 on the 2.4 GHz level.

More information can be found looking at this ISM band article. This is the reason why cordless phones/bluetooth/wireless routers all operate at the usual ISM band because they are unlicensed and free to be used by anyone, meaning you can't complain to the FCC if you get signal interference using these frequencies.

My recommendation if you have an Android phone would be to install this application Wifi Analyzer, this will allow you to scan your area and pick the best channel with the least amount of interference. Note that for example channel 11 overlaps channel 9 and 10. This will allow you to pick the best for your area. As you would get a graph looking something like this.

Screenshot of Application.

Sadly if looks like Apple has removed all apps that would accomplish this same thing on the iPhone from this article. There are probably jailbroken apps that can accomplish this, but I am unfamiliar with what is available..

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Thank you, I started researching about this because I'm currently using ch. 11 and my home wifi has been very flaky lately.Using Wifi Analyzer I see that channels 1, 6 and 11 are crowded. –  Daniel Serodio Jan 16 '13 at 17:32

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