Dynamic Frequency Selection (DFS) is a legally required feature for all WiFi devices that share the 5 GHz band with radar.
The IEEE 802.11 standard allows devices like routers and access points (APs) to share the 5 GHz radio spectrum with radar. Radar signals are vulnerable to interference from other devices using the same spectrum. DFS enables a router or AP to detect radar signals and switch their operating frequency to prevent interference. This process ensures that radar systems send and receive accurate information.
For more information about DFS on NETGEAR devices, see the following articles:
- How do I select a Dynamic Frequency Selection channel on my NETGEAR device?
- Which Dynamic Frequency Selection channels does my NETGEAR device support?
For more information about DFS, visit the following SmallNetBuilder article: https://www.smallnetbuilder.com/basics/wireless-basics/33082-smallnetbuilder-s-wi-fi-dynamic-frequency-selection-dfs-faq