Based on the PDF of the programming interface in the files section marked (CM7000x clearetone ranger )I have extrapolated what the signal lines should be. I do not have a programming interface so cannot check my details at the moment. But this should work with a bit of persuasion. The only thing I can see that would cause problems is the signal timing as most modern PCs are very fast serial port wise to what they where a few years ago. If that is a problem you may have to try and slow things right down to see if that works. The way that this would show up would be rubbish on the screen. This info is for (9way) d-sub shell connections on a pc. Pin 1 (this might need to be grounded but try without first) Pin 2 (RxD receive data Green cable based on PDF cct for Programmer to PC cables) Pin 3 (TxD transmit data Yellow cable based on PDF cct for Programmer to PC cables) Pin 4 (is linked to Pin 6, DTR to DSR) Pin 5 (is signal ground or the black cable on the programmer) Pin 6 (is linked to Pin 4, DSR to DTR) Pin 7 (is linked to Pin 8, RTS to CTS) Pin 8 (is linked to Pin 7, CTS to RTS) Pin 9 (is not connected, is used for modems mainly, RI) The only things that appeared to being used by the radio are Pins 2, 3 and 5. But the software may need Pins 7, 8 and 6, 4 linked as per data above. It may also be a case of a null modem type of connection that would entail reversing Pins 2 and 3 but try as above first then reverse if nothing has happened i.e. dose not talk to radio. This is my best guess and I cannot be held responsible for any mishaps.