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Message: <blockquote data-quote="Gigioman" data-source="post: 829750" data-attributes="member: 393162"> <ul> <li data-xf-list-type="ul">Just 2,5 hours later, the CNR ratios have dropped by ~1,5dB... still much better than before today, but not the dizzy heights of earlier</li> <li data-xf-list-type="ul">The drop in CNR seems to be accompanied by SS drops of 2%-pts, from ~55% to 53%.</li> </ul>[A scatter plot of historic CNR v SS values for my system, shows that ~50% SS is below cutoff/threshold for successful QPSK demodulation, but already that 58-60 results in 8-10dB CNR - so I tend not to bother reporting SS values]</blockquote>