Hello Masatetsu Wake-san: I'm excited to hear that you are working with some USRP and GNU Radio users in Japan!
Since we're both internal to National Instruments (I'm based in Austin, Texas, USA), let's discuss this question directly, and go from there. --Neel Pandeya On Tue, 3 Dec 2019 at 01:14, Masatetsu Wake <masatetsu.w...@ni.com> wrote: > Hello all, > > > > My customer is using X310 with two UBX 40 daugther boards and would like > to know how he can synchronize the phase. > > Below is the some of the steps he is trying: > > 1. > I add "dboard_clock_rate=20e6" to the "device arguments" field of > the property for the UHD Source block, as the following URL > shows. > <<https://kb.ettus.com/UBX > <https://urldefense.com/v3/__https:/kb.ettus.com/UBX__;!!FbZ0ZwI3Qg!-iZCEFpd1GU9lieXJ1xUlTGGU5pT1_gVKZxwV5kBn_Bvh4NhUZaZoAVt9Oc4ZBXz$> > >> > 2. > Octoclock is connected to all of the four receivers (X310), > and "clock_source" and "time_source" are "external" in the > UHD Source block. > 3. > Each channel adds phase bias (value is random) everytime the program > starts. > > He would like the phase bias to be constant. > > My customer can not share his code since he needs approvl to send program > outside of the company. > > It is possible to share sample code (e.g. grc file) for phase > synchronization. > > > > Thank you, > > > > Masatetsu Wake > > Account Manager > > National Instruments Japan > > M +81.80.5174.9003 > > masatetsu.w...@ni.com > > >
