Hello Ettus team,
I am currently trying to use gr-doa with a USRP X410, and I would like to ask for some advice regarding the phase alignment behavior.
When I run the flowgraph ”estimate_constant_phase_offsets_and_save“, the estimated relative phase offsets are different every time I start the flowgraph. Within one run, the phase difference is roughly stable with only small fluctuations, but after restarting the flowgraph, the estimated phase offsets jump to different values.
Because of this, when I run “view_op_with_corrected_phase_offsets”, the corrected phases still do not appear to be properly aligned.
I would like to ask whether this behavior could be caused by my hardware setup, or whether it is expected when using an X410 instead of an X440. I am not sure if I may be missing some synchronization or calibration steps in my setup.
I would greatly appreciate any suggestions or clarification.
Thank you very much for your help
Johnson
Hello Ettus team,
I am currently trying to use gr-doa with a USRP X410, and I would like to ask for some advice regarding the phase alignment behavior.
When I run the flowgraph ”estimate_constant_phase_offsets_and_save“, the estimated relative phase offsets are different every time I start the flowgraph. Within one run, the phase difference is roughly stable with only small fluctuations, but after restarting the flowgraph, the estimated phase offsets jump to different values.
Because of this, when I run “view_op_with_corrected_phase_offsets”, the corrected phases still do not appear to be properly aligned.
I would like to ask whether this behavior could be caused by my hardware setup, or whether it is expected when using an X410 instead of an X440. I am not sure if I may be missing some synchronization or calibration steps in my setup.
I would greatly appreciate any suggestions or clarification.
Thank you very much for your help
Johnson