On Fri, Oct 27, 2006 at 09:23:19PM +0200, De Lima Julian wrote: > So I tested but I have another question. > I read that the data through the USB cable (from computer to USRP) are in the > format I/Q complex. (Dawei Shen tutorial) > > My interpolation factor is 512, so the sample rate is 128M/512 = 250kSample/s > > I have a data list with 500e3 data. 250e3 are of 1000uV and 250e3 are of 0uV. > I see with my spectrum analyzer during 1 second some power and during another > second nothing. > > With a vector_source in complex, no problem. But if I specify a vector_source > in short, during 0.5 second I see power and during another 0.5 second > nothing. So there is a factor of 2 between the complex and short format. > > Therefore with a vector_list in short the sampling rate is doubled? Because > in I/Q format there are 16bits * 2 (I & Q) and in short only 16bits? > > Is it true that when we have a source in short the sampling rate is double > because we do not use the I/Q format? > > Thanks > > Julian De Lima
I recommend that you don't use the short interface to the usrp. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
