Setting up gpredict on linux for use with a Icom IC-910 radio. Settings on the IC-910: CI-V DATA Baud Rate: 19200 CI-V Address: 60h CI-V transceive: On When the radio is connected to the PC via the CI-V CAT Interface and serial port COM1 it is on /dev/ttyS0 or higher number. When you are using a usb-serial-rs232-adapter it should be on /dev/ttyUSB0 or higher number. Setting up the daemon from hamlib: ~/Hamlib/Hamlib/tests $ ./rigctld -m 3044 -r /dev/ttyUSB0 --civaddr \0x60 main: #1 vfo_mode=0 Recommend using --vfo switch for rigctld if client supports it rigctl and netrigctl will automatically detect vfo mode The daemon should be running in the background now, "./" is only needed for local execution and testing, if installed from a package: $ rigctld -m 3044 -r /dev/ttyUSB0 --civaddr \0x60 Or you can initiate with "systemd/rc-init" once testing is stable. Radio config in Gpredict: Edit -> Preferences -> Interfaces -> Add New Name: IC-910 Host: localhost Port: 4532 Radio Type:Duplex TRX PTT status: None VFO Up/Down: Main Down Sub Up LO Down: 0 LO Up: 0 Signalling: unchecked in Radiocontrol widget: Settings: 1. Device: IC-910 2. Device: None Cycle: 1000 (to be enhanced...) May. 2020, Brett Coady (VK2KYB) / Andreas Puschendorf (DL7OAP)