Although channels are numbered at 5 MHz spacing, transmitters generally occupy at least 20 MHz, and standards allow for channels to be bonded together to form wider channels for faster throughput.Ĭountries apply their own regulations to allowable channels, allowed users and maximum power levels within these frequency ranges. In the standards, channels are numbered at 5 MHz spacing within a band (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart), and the number linearly relates to the centre frequency of the channel. Each range is divided into a multitude of channels. The 802.11 standard provides several distinct radio frequency bands for use in Wi-Fi communications: 860/900 MHz, 2.4 GHz, 3.6 GHz, 4.9 GHz, 5 GHz, 5.9 GHz, 6 GHz, 45 GHz and 60 GHz. The radio frequency (RF) spectrum is vital for wireless communications infrastructure. Other equipment also accesses the same channels, such as Bluetooth. Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols, and equipment that does so is sold mostly under the trademark Wi-Fi.
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