After suffering the lack of separate HF PTT, 6m PTT, 144 PTT and 432 MHZ PTT from my K3 since I bought it I finally spent the time to do something about it. I have developed a PIC based unit that decodes the current K3 band data signals to provide these outputs. More information at http://g4fre.com/K3_PTT_sw.htm Dave ww2r