Let me start again with a new thread :) I have an Icom 736 and Icom 746 Pro. I can control both rigs using TR679 and TR684. I can get band output data on LPT1 and 2 using TR679. I cannot get band output data on LPT1 and 2 using TR684. Why? syl Sylvan Katz - VE5ZX Saskatoon, SK