Thank you Gerald for the explanation. Doesn't dithering remove this? Ironically, I only hooked up the dummy load to run the levels calibration (per another post last week). Anyway, I will try it out on the air today (both HF and transverter).
Joe k6sat On Jul 5, 2010, at 7:38 AM, Gerald Youngblood wrote: > Actually, those are sigma delta idle tones in the ADC that go away when you > excite the ADC with band noise. They only show up on a dummy load. In fact > they will probably go away if you turn up the preamp gain. You will never > see them in normal antenna operation. > > Gerald > > > Gerald Youngblood, K5SDR > President and CEO > FlexRadio Systems(TM) > 13091 Pond Springs Road, #250 > Austin, TX 78729 > Phone: 512-535-4713 Ext. 202 > Email: [email protected] > Web: www.flex-radio.com > > Tune In Excitement (TM) > > PowerSDR(TM) is a trademark of FlexRadio Systems _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software.
