Hi If the sidebands are un-correlated noise then they add as power (3db). If they are correlated they add as voltage (6db). Noisy modulation processes produce correlated sidebands.
Close in noise likely comes from a modulation process. Far removed noise is unlikely to be a result of modulation. Bob On Aug 24, 2010, at 4:24 PM, dk...@arcor.de wrote: > > > > Von: Bob Camp <li...@rtty.us> > >> If you start with a mixer that runs 500 mV / radian (an RPD-1 at the typical >> 8 mV / degree + 10%) then -180 below that would be 0.5 nV. Since noise it >> coherent close in, the DSB to SSB process nets you 1 nV out when you have >> -180 dbc noise. > > Adding the two sidebands may double the power, but not the voltage? > > > 73, Gerhard > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.