Hi Simon, You are righ on this. My VAC SR is on 44100 allways, and does not shange if I start DM780 or PowerSDR first Have tryed to change SR in PowerSDR first an then start is, but VAC is still on 44100 So it looks like VAC is fixed on 44100 for some reson.
Then I can se that DM780 is running 8k so this must be a problem. So my questions is if there is a way to force DM780 to 41000? 73 Jan, OY3JE -----Original Message----- From: Simon HB9DRV [mailto:si...@hb9drv.ch] Sent: 2. februar 2010 09:18 To: 'Jan Egholm'; 'Bret Mills' Cc: 'Steven L Hess'; FlexRadio@flex-radio.biz Subject: RE: [Flexradio] Spur in PSK31 output even with no rf out into Dummyload. 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 > No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2662 - Release Date: 02/01/10 12:37:00 _______________________________________________ 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/
