The situation is unrelated to RFI. It happens as low as 10W barefoot or at 1500W. It happens on all bands I have antenna for (160 through 20)and it happens on all of my antennas. It happens into a precision dummy load.
I have about 20lbs of ferrite hanging off the SDR just to be sure, and I have tried several different cables. This is a software issue. It changed between 1.4.16 and all that followed. My impression is it is somehow related to a feedback loop, carried on the parallel port. I have the flex USB-parallel adapter as well as a hard wired parallel port and the phenom occurs on both types. Lee W9OY __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com