Hi, I am using USRP X440 and GNU Radio to enable two transmit channels and two receive channels each with a 150 MHz sample rate. The GNU Radio only do real time signal transmitting and receiving, so I feed generated signal to usrp_sink block and download data from usrp_source block. However, I got many "LLLLL" errors when writing the received data by file_sink block and it cause the collapse of the program. If I use qt gui frequency sink to visualize the received signal, there is no "LLLL" errors. Do you have any idea about this? Is it because the writing speed of hard disk is not fast enough?
Thank you.
