NOORDWIJK, NETHERLANDS - APRIL 14: Paolo Crosta (L), Radio Navigation System Engineer and Pietro Giordano, Radio Navigation Engineer speak in the Radio Frequency Systems, Payload and Technology Laboratories at the European Space Agency on April 14, 2016 in Noordwijk, Netherlands. (Photo by Dean Mouhtaropoulos/Getty Images) Satellites of all kinds have one central characteristic in common. They all have to reach out either to receive commands, transmit scientific findings, relay telecommunications, perform remote sensing or, increasingly, deliver precision navigation and timing data - relying on radio frequencies (RFs) to do so. ESAs Radio Frequency Systems, Payload and Technology Laboratories perform RF research for both the space and ground segments. The Radio Navigation Lab is supporting the current Galileo service rollout.
