1. Overcome Channel Saturation by Using 5-GHz Channels
In standard Wi-Fi communication, all Wi-Fi radios configured with the same channel setting and operating in the same Wi-Fi area share the same transmission medium. So, you need to take into account all radio devices in that area when evaluating the utilization of a channel. For example, while checking the 2.4-GHz channel 6 for frequency saturation, you need to consider all access points in the area that use this channel as well as other devices that use non-802.11 communication, such as microwaves, ZigBee, and Bluetooth, on the same channel. If the channel is saturated, switch to a channel that is less crowded. The 2.4-GHz frequency is not recommended in industrial applications due to its narrow bandwidth and the frequent use of its channels. On the other hand, 5-GHz frequency provides a wide range of channels and usually has more non-overlapping channels available. However, 5-GHz channels are also used by radar systems. Most countries require wireless devices to support the dynamic frequency selection (DFS) function to legally operate in the 5-GHz frequency. Therefore, in an industrial environment, deploying devices with a 5-GHz radio along with the DFS function allows you to choose the cleanest communication medium and provides you with the best overall communication quality.