The biggest variation is above 6 GHz: most of the world allows 5.9-6.4 but reserves 6.5-7 GHz for cellular or haven't decided yet if it'll be for wifi or cellular. There's a nice map on https://6ghz.info/
The biggest variation is above 6 GHz: most of the world allows 5.9-6.4 but reserves 6.5-7 GHz for cellular or haven't decided yet if it'll be for wifi or cellular. There's a nice map on https://6ghz.info/