Hi, If a radio is connected via RS232, is it possible to get the radio on TX via the rs232 only? (software radio command) I have connected a K2 with RS232, a voice cable between soundcard and K2 but I can't get the K2 on TX when playing the voicekeyer Yes I know there isa PTT via DTS and/or RST, or par port but this require a small interface. Peter PC2A