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What are the number of 20/40 MHz channels available in the 2.4 and 5 GHz band, and are they the same as for 802.11a/b/g?

April 26, 2017band channels GHz MHz

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What are the number of 20/40 MHz channels available in the 2.4 and 5 GHz band, and are they the same as for 802.11a/b/g?

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10 Posted

In the 2.4 GHz band, there are 3 non-overlapping 20 MHz channels (same as for 802.11a/b/g) but effectively only one non-overlapping 40 MHz channel. In the 5 GHz band, which is much wider, there are a total of 6 non-overlapping 40 MHz channels in the traditional U-NII bands.