Hi, I'm using the USRP/DBSRX to record data for GPS. GPS tracking demands a continuous stream of data -- dropped bits make tracking impossible. 4Msps of complex data supplies 16 MB/s -- within USB2 bandwidth and my 4 disk RAID0 bandwidth.
I record the data using my own c++ version of cfile. I never get an error or overrun condition from usrp_standard::read so it appears that everything is working fine. However, when I process the data it is clear that data is dropped -- approximately a few thousand samples every minute or two. I typically record data for one hour at a time. I read data from the USRP in batches of 8192 16 bit short samples. Anyone have any tips on tracking down why I am dropping data? Thanks, Chris _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
