Hi, Let's consider two simple test configurations using both channels of a USRP X310 SDR*,* and developed in GNU Radio:
1. SDRs in TX mode: generate a cosine signal, transmit with SDRs and visualize their phase offset on an O-scope and 2. SDRs in RX mode: SDRs receive a signal from a signal generator and display their phase offset on a computer. In the 1st configuration the phase offsets between channels are consistent even if we power off the SDR. However, in the 2nd configuration, each time when the GNU Radio script is restarted, the phase difference is changing. I wonder what could cause the issue, specifically what determines re-tuning in the GNU Radio script. Can this issue be corrected? Thank you. Regards Markus
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