Yeah – that's the FCC approval from February I was referencing. AFC allows each WiFi system to contact one of the "providers" to see which parts of that spectrum are in use by licensed users in the same area. That way, the WiFi system (which is unlicensed) can pick a channel that avoids licensed usage nearby, and transmit at higher power on that channel without interfering. In order to do that, Google will have to collect the location of every Nest WiFi Pro that enables this feature (so I expect it to be optional). I would have hoped Google would have already implemented all of this, and would just need to get it certified. But, it's more likely they prioritized other things, and have waited until the FCC finally released its rules to get started on it. We probably won't hear anything from Google until it's "coming soon".
