Receiving the wave, a radio repeater, or a transponder, mounted on the satellite simply shifts the frequency lower and retransmits it so that it can be picked up by another earth station.
Saņēmis signālu, uz pavadoņa uzstādītais radio retranslators pazemina tā frekvenci un noraida šo signālu tālāk citai sakaru stacijai uz Zemes.