Generally speaking you cannot do better than about 25 Msps over a 1GbE link. By default the samples are signed 16-bit I/Q pairs, which means 32 bits per sample. At 25 Msps, that means the total data throughput is 800 Mbps – which is starting to approach the bandwidth over the 1 Gbps link.
If you have 60 Msps sampling rate, that is 1920 Mbps throughput, which is more than a 1 Gbps link. If you can tolerate the bad quantization it’s possible you could get closer to that rate by using signed 8-bit I/Q values, but I’ve not tried it. I think you would specify this as “--rx_otw sc8” Best, David
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