>From G3PLX: Having just read what I just wrote, I realise that there IS a way to reduce the DDS tuning clicks. In the AD9854 DDS chip, as used in the SDR1000, there is a facility to change from one frequency to another by sweeping linearly between the two. There's a 'start frequency' and an 'end frequency' register, and another to set the sweep rate. It should be possible to choose a sweeprate that was slow enough to eliminate the clicks, while still being fast enough to tune across a band manually. You wouldn't need to do it when switching channels or bands.
73 Peter _______________________________________________ FlexRadio mailing list [email protected] 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
