Hello, I am working with the X310 USRP. I have two identical custom blocks feeding the RF frontends.
flowchart ----------------- HW Block1 -> RF0-TX1 |---< HW Block2 -> RF1-TX1 |---< The system is synchronized to an external PPS reference. The sampling rate is 200 MSps and the signal bandwidth is 160 MHz for both channels. The two HW blocks start transmitting at the exactly same time. Time resolution is 5ns. In most cases the two outgoing RF signals present a 1ns time offset. Which can be understood as a phase offset. But From time to time there is a 6ns delay between the channels. I assume this 6ns comprises the 1ns delay due to phase offset + 5 ns delay due to misalignment of outgoing samples. What could be the origin of this one sample misalignement? Is it a way to fix it? Or working close to the limits of the device should such behavior be expected? Thanks in advance Best Regards Cherif
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