AFC (Automated Frequency Coordination) is a regulatory and technical mechanism that allows Wi-Fi Access Points to operate in the 6 GHz band at standard power levels higher power and greater range than is permitted under low-power indoor (LPI) rules by coordinating with a cloud-based database to avoid interfering with incumbent licensed users of the same spectrum, such as fixed microwave links.

Why is AFC Needed?

The 6 GHz band is shared spectrum: alongside Wi-Fi, portions of it are also used by licensed incumbent services in some regions. To protect those incumbents from interference while still allowing Wi-Fi networks to use higher transmit power, regulators such as FCC require standard-power 6 GHz Access Points to check their location and operating channel against an AFC database before transmitting. The AFC system determines which channels and power levels are safe to use at that location and authorizes the Access Point accordingly.

AFC vs. Low-Power Indoor (LPI) Operation (for US regulatory domain)

Power limits and AFC requirements vary by country and regulatory domain. The values above apply to 6 GHz operation in the United States.

What Does AFC Enable?

• Standard-power, AFC-authorized deployment can extend 6 GHz coverage across larger floor plates, campuses, and outdoor areas without adding as many Access Points
• AFC adoption and rules vary by country, so the applicable framework depends on where the network is deployed
• 6 GHz spectrum access whether under AFC or LPI is what enables Wi-Fi 7 features such as 320 MHz channels and additional non-overlapping channels for high-density deployments

For a broader look at what the 6 GHz band enables for Wi-Fi 7 networks, see our 6 GHz Band glossary entry.

Key takeaway: AFC is the coordination mechanism that lets Wi-Fi networks safely use standard, higher-power 6 GHz transmission without interfering with incumbent spectrum users extending the range and capacity benefits of the 6 GHz band beyond what low-power indoor operation alone can deliver.