I think this is kind of gimmicky, or at least very far from practical applications aside from the satellite calibration they're talking about. Their radio tele

I think this is kind of gimmicky, or at least very far from practical applications aside from the satellite calibration they're talking about. Their radio telescopes are located in Europe. How would you have constant time signals available? I would guess the errors in synchronizing / matching the signals across telescopes in the ground would be by far the larger error compared to the signal itself. But who knows, I'm just an outside observer.