A Silent Isolation Room For Satellites

Local Color Built in 1967, DTU's anechoic chamber was orginally black, but "it was like working in a grave," says Olav Breinbjerg, an antenna engineer. So in the nineties, new absorbers were painted a cheerful blue. Alastair Philip Wiper More than 1,000 working satellites orbit Earth. As space becomes increasingly crowded, there's a greater chance that the satellites' radio signals could overlap. To avoid that problem, which disrupts communications, satellite antennas must transmit only within a...