Ross Stenberg wrote: > > All of this information on transformers, ground loops, and isolation > certainly makes a USB only interface seem very attractive. > > 73 Ross K9COX > If that were the ultimate solution, no one would pay for these isolation transformers. In one of my computers, the USB interface CONTRIBUTED to the problem and provided a high enough impedance to one of the grounds to cause a problem. Who knows which one? Most of the hot shot audio guys I know (including John, et. al.) have used isolators long before there was a Flex Radio to deal with this issue. It is not surprising to see these problems with the wide variability in computer mobo's, PS, cases, shack grounding, etc. > > _______________________________________________ > 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 Homepage: http://www.flex-radio.com/ > > FlexRadio Knowledge Base: http://kb.flex-radio.com/ > >
-- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair "Taking fun as simply fun and earnestness in earnest shows how thoroughly thou none of the two discernest." - Piet Hine _______________________________________________ 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 Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
