Lisa- > 32 Mbyte/sec --> 16 Msample/sec --> 16 MHz bandwidth.
After reading Richard's reply and thinking about Nyquist, I must be wrong. 16 Msample/sec, 8 MHz bandwidth, somewhat less usable bandwidth. -Jeff -------- Original Message -------- Subject: Re: [Discuss-gnuradio] USRP data rates Date: Wed, 08 Aug 2007 23:07:14 -0500 From: Jeff Brower <[EMAIL PROTECTED]> Organization: Signalogic, Inc To: Lisa Creer <[EMAIL PROTECTED]> CC: discuss-gnuradio@gnu.org Lisa- > The USRP sales brochure lists as a feature "Capable of processing signals up > to 16 > MHz wide". I can only figure out how it can process signals up to 8 MHz wide. > What > am I missing? > > Since samples sent across the USB are 16-bit signed integers (16-bit I and > 16-bit Q > for complex samples) that makes each complex sample size 4 bytes. Since the > USB max > is 32MB/s, we have a limit of 8MS/s which translates to an effective > bandwidth of > 8MHz wide. 32 Mbyte/sec --> 16 Msample/sec --> 16 MHz bandwidth. If you want to consider complex sampling, then divide into 8 MHz positive frequencies, 8 MHz negative. -Jeff _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio