Apple AirPort Networks Guía para resolver problemas descargar pdf (Pagina 54)

See Pick Compatibility and Set a Channel, earlier, to learn how to set

your base station’s channel in AirPort Utility.

2.4 GHz Channels

In the United States, 802.11 standards can use any of 11 numbered,

staggered channels in the 2.4 GHz band (Figure 103). Because these

channels are staggered and overlap, only channels 1, 6, and 11 in the

United States can be used in networks that overlap their coverage

area, assuming you want the least interference. (In some countries,

the 2.4 GHz band is slightly wider, allowing for four non-overlapping

channels.)

Figure 103: 2.4 GHz 802.11 channels are staggered, with channels

1, 6, and 11 having the least overlap. 5 GHz 802.11 channels have

little overlap; only the four lowest channels of 23 are shown.

All 2.4 GHz channels have the same power limits, but there’s a distinct

difference in the permitted level of signal strength—which affects the

distance at which Wi-Fi can work and the top speeds available.

Also, due to the overlapping, staggered nature of the channels, there

is room in 2.4 GHz for only a single

unique 40 MHz channel and a

single 20 MHz channel to be used at the same time—and then only

in ideal cases. This is why Apple didn’t want wide channels in 2.4 GHz.

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Apple AirPort Networks Guía para resolver problemas Pagina 54