Thank you Marcus. I feel it will be the same story if I use two X310s? I look a bit at the project gr-doa and as I understand it seems to just require the calibration once. I'm not sure if there is a critical difference between the WBX/CBX vs. TwinRX for this task though.
On Thu, Jun 11, 2020 at 12:05 AM Marcus D Leech <[email protected]> wrote: > 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 >
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