I worked a local on PSK31 with my FLEX-5000A yesterday. Our frequencies were separated by over 20 Hz. I asked if his RIT was on. He suggested mine was on, in reply. I worked another local and the same thing happened. That means the problem is on my end. I was using DM 780 for the digital comm software and VAC 4.6. It has been a few months since I've been on the digital modes. How do I determine where the problem is? It is either in DM 780, in PowerSDR, or in VAC. I am really quite puzzled since the virtual soundcard (VAC) should preclude any calibration. I could try MixW also. 73, Steve N6VL _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/