6 GHz Extended Range & AFC in UniFi

What is AFC?

AFC (Automatic Frequency Coordination) is a feature in UniFi Network designed for 6 GHz WiFi that increases transmit power while complying with FCC Standard Power Limits. It ensures devices operate on available frequencies without interfering with licensed users, such as satellite and fixed wireless services. Outdoor rated APs require AFC, while indoor rated APs can use it for extended range on 6 GHz.

How does AFC work?

AFC-enabled APs connect to a geolocation service via the internet every 24 hours to identify licensed 6 GHz users in your area. Based on this information, the AP automatically selects a channel and adjusts transmit power to prevent interference while optimizing performance. Note that maximum transmit power depends on both your selected channel and the selected channel width. 

To ensure your AP is set to the maximum possible transmit power for your region, leave your AP set to Auto transmit power. We also recommend using Auto channels, but a manually specified frequency can be used if desired.

Why is AFC required?

The 6 GHz band is shared with licensed incumbents, including public safety, broadcasting, and utility operators. AFC is mandated by regulations to protect these critical services while enabling enhanced performance for WiFi devices. Note that AFC for 6 GHz deployments with indoor rated APs is not required unless the extended range functionality is desired.

What regions utilize AFC?

Currently, only the United States and Canada support AFC and 6 GHz for outdoor APs. Support for additional regions is pending regulatory approval. The current list of supported countries can be found here.

What data is shared during the AFC process?

AFC requires sharing specific device data—such as location and frequency—with Ubiquiti and its service providers to ensure compliance and functionality. For more information, please review our Privacy Policy.

Why can't I achieve full 36 dBm power on my given channel?

AFC can enable power above 30 dBm indoors, up to 36 dBm, if permitted by FCC limits as determined by the AFC geolocation service. You can set power to Auto to enable AFC. If your given channel selection and channel width do not allow power above 30 dBm, it is because FCC limits do not allow it. You can try other channels and/or channel widths. For outdoor APs, 6 GHz maximum transmit power can vary up to 36 dBm and lower than 15 dBm, entirely dependent on location, frequency, and channel width.

Which UniFi APs support AFC?

• E7
• E7 Campus
• E7 Audience
• U7 Pro Outdoor