PROBLEM SOLVED! I was operating in SPLIT Mode & although the receive side was fine, the transmit side was in the wrong mode! it was in AM. So all I had to do was change it to USB-D. :-D
Good morning "D"
The other way round this is to use "Fake It" setting in WSJTX Radio Settings which basically means your rig only uses a single VFO. I find it easier as it can save you having to manually change rig settings when switching different software, voice, or CW.
You should also investigate the use of the "Data/Pkt" mode in the Radio Settings which works well on the IC-7100 and IC-7200 so is likely to on your IC-7300. It should put your rig into the correct mode for both Rx and Tx.
