How will this work in terms of spectrum usage across countries? Will every country have to allocate the same frequencies as the carriers involved in the US? Will every phone have to support particular bands used in the US? A bit confused about how they anticipate tackling the hurdles here.
I imagine that the satellites can switch frequencies within a small margin as they commonly need to do that when faced with interference. They can already shut off when traveling over countries where they don't have broadcast permission. But yes, it seems like ~2GHz is what SpaceX/T-Mobile is using here, so they'd need approval around those frequencies or more antennas on the satellites for higher frequencies which doesn't make alot of economic sense. Also the penetration will get worse the higher in frequency they go.
