W dniu 06.10.2017 o 21:33, Piotr Krysik via USRP-users pisze: > Hello everyone, > > I synchronized two USRPs B210 with use of Octoclock-G and the attached > gnuradio-companion flowgraph. > > I've connected signal generator generating sinusoid to both devices (it > was on frequency 694.5MHz while USRPs were tuned to 694.3MHz, signal > power was about -40dBm). What I would expect is to see constant phase > offset between signals received by both USRPs (perhaps changing slightly > with temperature etc.). However what I see is constant changes of phase > that corresponds to frequency offset between two devices. Moreover this > frequency offset changes significantly from one execution of a flowgraph > to another (look at the image): > > relative phase of two B210's > Missing image of phase offsets in the attachment.
Best Regards, Piotr Krysik
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