I am successfully running FT8 with WSJT-X on Windows 10 with my IC-7300. I am using
IC-7300 as the rig.
On reading the official WSJT-X User Guide (and various YouTube videos, etc.) I see that many places strongly recommend running FT8 in split mode. Since the IC-7300 has two VFOs and supports split mode I chose the "Rig" setting in the WSJT-X settings. When I do so I see the radio shows "SPLIT" on its screen and does use separate receive and transmit frequencies. However, when it transmits it transmits at zero RF power regardless of what I set the RF power to with the Multi knob.
But when I change WSJT-X to "Fake It", which does not use SPLIT mode and instead just makes the radio change frequency to transmit and then makes the radio change it back to receive I see the radio transmitting at the power level I'd expect.
Any idea why I'm seeing my radio sit at zero transmit power in SPLIT mode? I've talked to a couple of friends with IC-7300 radios and they are not seeing that happen with them -- they see the radio transmit at expected power.