The best performance I can obtain for QSK is at the following settings: GENERAL-AUDIO-Buffer: Size 512, Sample Rate: 48000 GENERAL-OPTIONS: Process Priority: High DSP: TX Buffer Size: 512, RX Buffer Size: 512 Delay (ms): 10 (minimum setting)
At these settings I see around 10% CPU utilization on the PowerSDR screen. With these settings, I am almost, but not quite there. Here is my complaint. When returning from T to R there is an audible "pop" that tends to mask reception during Dits and Dahs. I am wondering if Receive recovery is occurring quickly enough. Elimination of the "pop" on transition from T to R would go a long way in smoothing out QSK, in my opinion. My method of comparing QSK capability between my SDR-5000 and my FT1000D is to select the frequency on a constant carrier signal, and then key at 20 wpm to see how well I am able to hear the carrier between Dits and Dahs. Dave, W5UN _______________________________________________ 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/
