Hi Rob, RFNoC_Replay as you mentioned is great without any underrun even with higher sample rate.
1- I have a same radar application and I implemented the TX/RX code with two methods in GNU Radio: with RFNoC_Replay and also with simple USRP sink/source blocks. \-with USRP sink/source blocks, while it transmits and receive radar waveform, I can save both of those TX and RX signals that needed for post processing. \-but when I use RFNoC_Replay, radar waveform first loaded to the DRAM in USRP and then transmitted directly from there to the antenna, so while the echo signals from targets can be received and save to file, but how can I save the transmitted waveform? 2- also here is the other question, while I am saving these TX and RX signals to file, how can I save timing information, like when each sample received. it is important because of the underurn and overflow happen during TX and RX. any suggestions? Thank you.
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