> Every antenna+transmitter configuration has to be certified separately (that's why Lenovo and other laptop vendors have Wifi card whitelists and refuse bootin

> Every antenna+transmitter configuration has to be certified separately (that's why Lenovo and other laptop vendors have Wifi card whitelists and refuse booting with uncertified chips installed). Are you sure about that? The fact that not every vendor has such a lock suggests to me that there is no legal requirement for it.