Hi, I believe the short format isn't implemented for the USRP2 yet, or has this been done recently?
/Ulrika > -----Original Message----- > From: discuss-gnuradio-bounces+ulrika.uppman=foi...@gnu.org > [mailto:discuss-gnuradio-bounces+ulrika.uppman=foi...@gnu.org] > On Behalf Of TANGUY Philippe > Sent: Thursday, February 25, 2010 10:01 AM > To: discuss-gnuradio@gnu.org > Subject: [Discuss-gnuradio] USRP2 LFTX maximum real baseband > bandwidth? > > Hi all, > > I would like to send a real signal with a bandwith from DC to > 25MHZ thanks to the USRP2 and the LFTX daughterboard. > > So, I generate a Real baseband signal and I use only the "I" channel. > But, it seems that the minimun interpolation of USRP2 is 4 > (USRP2faq) that's why I use interp=4. So, I have a bandwidth > of 12.5 MHz because the sampling frequency is fs=25 MS/s ==> > fs/2 = 12.5 MS/s. For me, it seems good. > > So, my first question is: > Is it possible to use an interpolation of only 2 to have > bandwidth=25 Mhz? > > Secondly, I'm not sure but if we use interp=2 we have before > the DUC a data rate = 50 MS/s * 32 (float32) = 1600 Mbits/s > ==> > Gb/s. > However, if we use interp=2 and "short" format, we have a > data rate = 50 MS/s * 16 (short) = 800 Mbits/s ==> < Gb/s. > > Is it correct? > > Thanks, > > Philippe. > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
