Dear Colleagues, The following item has been added to the rcvr_ant.tab and antenna.gra files. 14 JUL 2023 Added TRIMBLE R580, TRMR580 https://files.igs.org/pub/station/general/rcvr_ant.tab https://files.igs.org/pub/station/general/antenna.gra Best Regards, David Maggert Network Coordinator IGS Central Bureau