To make things even more confusing (and harder to Google), 5GHz WiFi has its own history of contention with U.S. military spectrum use [0]: >In 2007, the FCC (

To make things even more confusing (and harder to Google), 5GHz WiFi has its own history of contention with U.S. military spectrum use [0]: >In 2007, the FCC (United States) began requiring that devices operating in the bands of 5.250–5.350 GHz and 5.470–5.725 GHz must employ dynamic frequency selection (DFS) and transmit power control (TPC) capabilities. This is to avoid interference with weather-radar and military applications [0] https://en.wikipedia.org/wiki/List_of_WLAN_channels#United_States https://en.wikipedia.org/wiki/List_of_WLAN_channels#United_S...