Several of the GPIO pins on the RPi are controlled by RemoteTx to control attached GPIO compatible devices.
The Plug 1, Plug 2 and Plug 3 buttons on the RemoteTx ‘Setup’ tab toggle physical pins 16, 22 and 37 respectively.
Connect RPi pin #16 to the ‘+’ pin of the Digital Loggers AC Iot Relay and one of the GND pins (#14) to the ‘-‘ pin. Plug the power supply of the IC-7200 into the relay so allow RemoteTx to turn the radio on and off.
(Make sure the Power Button on the radio faceplate is left always on.)