Hi, Did have a closer look at how to change the SR in VAC under Windows 7
I my case I did need to adjust the SR on VAC under sound card in control panel and did set it to 2 channel, 16 bit and 48000 Hz So now VAC line 1 and 2 are 48000, PowerSDR is 48000, and no spur when TX using DM780, I guess this must allso mean that the RX must allso be better now? I dont use fldigi, but did make a TX test in fldigi (SR set to 48000 in fldigi) and no spur there either. So just need to test MMTTY and MMVARI so I am ready for CQWW WPX RTTY. Have had some chopping sound in WSJT so must check the SR there too. So thanks for the help Simon. 73, Jan, OY3JE -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Simon HB9DRV Sent: 2. februar 2010 19:17 To: 'David Beumer W0DHB' Cc: 'Steven L Hess'; 'Jan Egholm'; [email protected] Subject: Re: [Flexradio] Spur in PSK31 output even with no rfout into Dummyload. No, DM780 opens the output device (Soundcard, VAC) at 8kHz. Surely you can set the VAC to use 48kHz (8kHz * 6) & PowerSDR at 48kHz? You do not have to use the same rate at each end of the VAC - the driver will convert the sample rate (with a little help from Windows). I really don't want to write my own VAC, I don't think the brain cells could take the strain! Simon Brown, HB9DRV http://sdr-radio.com > -----Original Message----- > From: David Beumer W0DHB [mailto:[email protected]] > Sent: 02 February 2010 20:01 > > DM780 will use PowerSDR VAC sample rate if the VAC is opened by > PoweSDR before invoking DM780 , correct ? > _______________________________________________ FlexRadio Systems Mailing List [email protected] 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/ 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 [email protected] 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/
