No. It is the nature of PLL synthesizers that they won’t land at the same phase offset every time they’re tuned.
In addition the DDC components in the FPGA aren’t necessarily going to be at the same phase offset every time. You’ll need to have a phase calibration on every run. Sent from my iPhone > On Jun 11, 2020, at 12:01 AM, Hai Nguyen via USRP-users > <[email protected]> wrote: > > > Hello, > > I'm trying to do phase calibration for two B210s for a DoA application. I use > a known tone with splitter and equal-length cables. The problem I'm having > is, the phase difference between two corresponding channels of the USRP (for > example, RX2 of radio A) seems to change not just between the resets of the > USRPs, but also between the runs of the UHD program. > > Is this possible to phase-calibrate the two B210s? > > Thank you and best regards, > Hai > _______________________________________________ > USRP-users mailing list > [email protected] > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list [email protected] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
