Special radio telescopes

2000/06/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Elektronika
• Astronautika

Radio astronomy has recently suffered serious problems due to the interference caused by mobile phones, since its frequencies are similar to those of distant stars. In the Netherlands, however, researchers from the National Foundation for Astronomical Research are on track to solve the problem. These have designed a radio telescope composed of several antennas separated from each other. Therefore, the emission comes from space with a small temporary decalage, but this small decalage is sufficient to detect the phase decalage between the incoming signals. Signals are recombined on the computer and radioastronomers can deworsen mobile phones because their emissions are stable phase. Thus interference is less than ten thousand times.