However , the availability today of worldwide , high - bandwidth networks makes it possible to do VLBI in real time .
Since its inception , recording data onto hard media was the only way to bring the data recorded at each telescope together for later correlation .
The availability today of worldwide , high - bandwidth networks makes it possible to do VLBI in real time .
Since its inception , recording data onto hard media was the only way to bring the data recorded at each telescope together for later correlation .