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Ioannis Makris makrisj at gmail.comThanks for the tip! On Fri, Feb 8, 2019, 20:54 Sylvain Munaut <246tnt at gmail.com> wrote: > Hi, > > I have managed to replace both buck DC-DC converters with AMS1117 3.3 & >> lm317 linear regulators and I successfully got rid of the mentioned 1 MHz >> buck converter clock to obtain as pure a signal as possible. Do not expect >> miracles as the DAC's are 8-bit and have a best case SNR of -48dB, but >> getting the sideband modulation out of the signal surely improves the >> resulting spectrum a lot. >> > > Well they might be 8 bits, but they're massively oversampled for HF, so > with good filtering and noise shaping, you can get more SNR. > > Cheers, > > Sylvain > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20190208/763faea2/attachment.htm>