testing the live CD installed on IBM PC and found the fldigi waterfall displaying receved psk audio at 500 Hz. found that when fldigi TX audio tones are at 2000 Hz also cannot get the ptt to operate. previous server on this machine was a working correctly GMFSK live CD server install. Installed version (2 wks ago) is PSKmail 2.6 / fldigi 1.11 I have now manually replaced the fldigi binary with ver 1.23 non-hamlib and it runs - but the same problems with decoding half freq / modulating double freq. and no ptt control The client PC is a Tosiba Tecra clone running on the live CD and operates correctly except the ptt which I have to use a USB-serial port device. this device works on windows mode (yuck) I have searched the fldigi site dont see any reference to this issue (other than downloading the 1.23 which should have helped the ptt issue. Thanks, Ralph ZL1TBG
I would suggest renaming your fldigi.def file, restart fldigi and generate a new .def file. The fldigi.def contains the user settings.
HTH Ed W3NR