How many channels are available with IEEE 802.11g?

The IEEE 802.11g standard operates in the 2.4 GHz frequency band and is capable of providing up to 11 channels. In regions like North America, there are 11 channels available, which range from channel 1 to channel 11, each 5 MHz apart. However, only a few of those channels are typically used due to overlap; for instance, channels 1, 6, and 11 are often recommended because they are non-overlapping and provide better performance with less interference.

In contrast, other frequency bands and standards, such as IEEE 802.11a, utilize different sets of channels and may offer a broader selection, but within the 2.4 GHz band that 802.11g operates, the correct count of available channels is indeed 11. This foundational understanding of how many channels are available under this specific standard is crucial for field technicians, particularly for optimizing network performance and minimizing interference in wireless communications.