I found a bug in the cat conf ini file for the ic7700 the begin of the adress for the ptt control has a different beginning of the mode settings... i am also searching for the correct command to set the trx to the usb data mode. trying to modify the last digit brings me to several modes but not the usb-data mode at the moment. any ideas all around? Thank you for the interesting part of software! Best regards DL2GHM Martin