Greetings Randy,
Interestingly enough, my ICOM IC2730A only has one DCS point on it's programming menu to enter the single code data. As you already know, selecting the correct tone mode setting is also required.
When I am using CHIRP or RT System programming software and I read from my ICOM IC2730A, I see a column titled DCS. I do not see anything titled DCS Tx or DCS Rx.
Manual shows my ICOM IC2730A does support:
• TONE:
• TSQL:
• DTCS:
• TSQL-R:
• DTCS-R:
• DTC.OFF:
• TON.DTC:
I suspect my Icom IC2730A does not support Split Tone > DTC.DTC.
I hope I am wrong.