The idea is that these would point to space, right? I wonder if you could create a ground antenna as well, with a pair of these -- one acting as receiver and t

The idea is that these would point to space, right? I wonder if you could create a ground antenna as well, with a pair of these -- one acting as receiver and the other as transmitter, at a very high altitude, pointed at two different locations on the ground. That would give you a very high gain antenna for two fixed points which might obviate the need for e.g. expensive undersea cable link.