I read your note about using the IF232. I got an LCU-3 with my used 440 rig. I t has the chipset installed. BUT the cable eems to a straight through with 9 pin on computer end and a STEREO pin connector at the rig end . Have yuo seen this type and if so whree would it connect on the 440. Theonly opening that matches is the sp out I am sure this is not where it goes..
I can't find a web manual(PDF) !!