Hello,\ Presumably, you mean 56 megasamples/sec? - Yes, by setting it to usrp->set_tx_rate(56e6); When setting the clock frequency, usrp->set_master_clock_rate(56e6);\ \ The 'U' indications that your computer isn't keeping up with the radios demand for samples. The radio supports a maximum sample-rate of 56 megasamples/sec. - \ I've read about this, but I don't actually have a good, powerful computer, because the computer doesn't freeze or glitch when working. The only thing I assumed was that it was a USB port, it might not work correctly, but I inserted the USRP into the 3.1 and 3.0 ports, there was no difference, right into the motherboard (back).\ \ Where are you pulling the samples from? A local file? Are you constructing the samples in real-time? - I get the samples from a local file.\ \ If you use "benchmark_rate", it will tell you if your computer, when doing absolutely *NOTHING* with the samples, can keep up with the specified sample rate.
Your computer has to work harder and harder the higher the sample rate. The amount of "work" your computer has to do is proportional to the product of the "inherent per-sample\ computational complexity" X sample-rate. - I'll try to do a benchmark_rate, and I'll post the results. \ \ Sorry, I didn't quite understand how to insert your quotes in the response, so I copied them and answered with a "-".
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