Following Tim's suggestions, I modified the VAC sample rate to 48 KHz and the MixW sample to 12 KHz. I also used the VAC settings shown in the revised KB article on how to setup the VAC software. Audio and VAC buffers (in the PowerSDR setup) are now both set to 1024. I haven't yet upgraded VAC from 4.04 to 4.07; I'll take care of that tomorrow.
I see an immediate, dramatic improvement in my signal on the waterfall. I can still hear a few pops in my headphones but the horizontal lines have completely disappeared. There are no longer any black bars where power goes to zero. The "idle" signal is a clean pair of parallel lines. My power still varies but I'm guessing this is not a serious problem, or maybe is completely normal (?) (whereas the popping and dropouts were not). BTW, I incorrectly summarized Larry's observations in my last posting. He sees the power fluctuations but not the popping and dropouts. Sam W2SNX _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
