Deepspace Signal Amplification is the method used by Erzacher clusters to communicate nearly instantly, even through space.
In order for clusters to command their own machines and to work with other clusters, they need to send signals to each other. However, if the sender and receiver are on different planets or even systems, the enormous distance between them initially made this rather inconvenient. This greatly hampered the CCH's space program.
In the end, a solution was found, based on the theories of Ezeri scientists from long ago. Cylindrical devices - the deepspace signal amplifiers - were mounted on space stations and inside space ships. The amplifiers strengthen the signal enough to make communication practical again, and they work even better when there is more than one present. Nowadays, space stations scattered throughout CCH space form a network that allows for real time communication between or within clusters.