Hi,
I am using USRP X440 to build a wireless communication
prototype. The host PC is equipped with i9-14900K and I am
trying to use two transmit channels and two receive channels of
the USRP simultaneously. I feed two generated signal to two
channels by the USRP_sink block, and then I download the
received data from the USRP_source by file_sink blocks. The
sample rate I use is 150 MHz for each channel.
However, I noticed that there are many "L" occurs when I run it.
Even if I reduce the sample rate to 30 MHz, I can still see the
problem. But if I use qt_gui_frequency_sink to visualize the
received signal, it can hold up to 150 MHz without any errors.
I would like to ask the reason for this. What cause the "L"
errors? Is it about my ssd's writing speed is not high enough?
Thank you very much.
The Qt frequency sink uses a "stuttered" approach to calculating the
FFT. In order to service the desired frame-rate, it