RigExpert S/D universal device contain two devices in one for SINGLE and DUO channel.
Default firmware is for single channel version.
If you have had upgrade your transceiver for FT-1000MP..... FT-2000, FT-9000, TS-2000, IC-7800
You can reprogram RigExpert S/D for DUO channel version by your self.
Please click button and follow instruction install new firmware.