What width is each channel in the 2.4 GHz frequency band?

In the context of the 2.4 GHz frequency band for Wi-Fi, each channel is typically 20 MHz wide. This width allows for a clearer separation between adjacent channels, which is crucial for minimizing interference and ensuring stable connections.

The 2.4 GHz band consists of multiple channels, and due to its limited bandwidth, it can only accommodate a small number of non-overlapping channels—specifically, channels 1, 6, and 11 are commonly used in North America to avoid overlap and interference. Each of these channels maintains its 20 MHz width, which is essential for adhering to regulatory standards and optimizing wireless network performance.

Other widths such as 22 MHz, 40 MHz, and 80 MHz come into play primarily in the 5 GHz band or in specific cases of channel bonding (for example, combining two 20 MHz channels into a single 40 MHz channel in certain circumstances). However, in standard configurations within the 2.4 GHz band, 20 MHz is the accepted width for each individual channel.