wifi基本知识

WiFi基本知识.

频谱划分 WiFi总共有14个信道，如下图所示：1）IEEE 802.11b/g标准工作在2.4G频段，频率范围为2.400—2.4835GHz，共83.5M带宽 2）划分为14个子信道 3）每个子信道宽度为22MHz 4）相邻信道的中心频点间隔5MHz 5）相邻的多个信道存在频率重叠...

WiFi基本知识【转】

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