Using separate channels helps to avoid interference between multiple access points in the same area, ensuring efficient communication and network performance.

Bluetooth uses the unlicensed ISM part of the 2.4 GHz band, which does not require special licensing from the government and is open for anyone to use.

There are three separate 20 megahertz channels available in the 2.4 GHz band, commonly seen as IEEE’s channels 1, 6, and 11.

The 5 GHz spectrum provides many more 20 MHz channels than the 2.4 GHz band, making it easier to find available spectrum, especially in areas with a high density of access points.

Running each access point on a different wireless channel helps to avoid potential interference and ensures efficient communication, especially in areas with multiple access points.

The purpose of using the 5 GHz spectrum is to provide many more 20 MHz channels for communication than the 2.4 GHz band, especially in high-density areas with multiple access points.

The current largest bandwidth for communication is 160 MHz, allowing for much better throughput.

We refer to the limited communication range of Bluetooth devices as a personal area network (PAN), typically operating up to about 10 meters in distance.

Governmental agencies regulate the wireless spectrum, dictate which frequencies should be used, and set requirements and limits over how much interference can be caused by the 802.11 networks.

The 2.4 GHz band ranges from 2412 MHz through 2482 MHz, providing the frequencies commonly used for 802.11 wireless networks and Bluetooth devices.