Random thoughts: You shouldn't have any spurs, that's it. Even though the spur is ~60dB down on the main signal it'll be easy to decode and just shouldn't be there. As Tim says it could well be a soundcard harmonic *but* you're using VAC, in which case it would have to be generated inside the VAC driver and this is indeed possible.
If possible look at the signal fed into the VAC, maybe I'll have to write a display to show this. Is the VAC running at 8kHz both ends or is the end connected to PowerSDR running at a different rate? If so this could account for the spur. Simon Brown, HB9DRV http://sdr-radio.com > -----Original Message----- > From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- > > I am using DM780 and have allways had this spur when running PSK > _______________________________________________ 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://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
