nanog mailing list archives

Re: 2.4Ghz 40Mhz 802.11n wifi and Apple Macbook


From: "Ricky Beam" <jfbeam () gmail com>
Date: Mon, 15 Jun 2015 16:58:21 -0400

On Mon, 15 Jun 2015 14:17:52 -0400, Colton Conor <colton.conor () gmail com> wrote:
So assuming you live in a decent sized house/lot, should you really care
about squatting all over the entire band? I mean sure I can see my
neighbors wifi signals...

*DING* There's your problem. It doesn't matter if you can link and pass traffic. If **ANY** other signal is detected in the extended channel, the AP is *REQUIRED* to cease operation @ 40MHz. This is why it is nearly impossible (outside a shielded lab) to get 40Mhz mode in the 2.4GHz band. SOMETHING is going to step on it -- neighbors, bluetooth, cordless phone, leaky microwave oven, baby monitor, RC toy, ...


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