Thanks Mike!
I see that in the RRC-1258 manual, 'Rev. A40 - 2019 sept 18' page 18, but specified for IC-706, TS-480, and 'RS-232'
My use is with K3/0-Mini, which is powered separately. Would the 'RS-232' note be applicable?
Is this the most recent manual? Am I missing something?
73, Jeff K8ND PJ2ND