[Elecraft] Mac vs WSJT-X

[Richard]

WSJT-X 2.1.2
Mac mini running OS 10.12.6 Sierra
K3s connected via SignaLink — don’t want to change that

All of the above are playing well together; no problems.

What I’d like is to add a USB connection between the Mac and the K3s that will cause my radio band changes to be reflected in the little black frequency box on WSJT-X.

I’m aware that there’s more to achieving that than simply connecting them with a USB cable.

What else do I need to do to make this happen?

Cheers!
Richard Kunc ~ W4KBX