I have gotten RMS Packet working on 144.970, and 144.030. I'm also having issues with the CI-V on the Icom 746 pro. I have two cable available and they both can't read radio. For know I have Radio and SCS-PTC iii USB running on 14109 Center Freq. I'm too close to see if it works...
I'll be going back to the site next Wednesday to figure this out.