Martin, The alternative of a USB 3.0 is not having 5 USRPs. It is just reading 5 times at different centrer frequencies in order to get 40MHz information although that information will not be gathered at the same time.
For my application I just need to "see" the sprectrum. I do not need to demodulate data so that it would be fine to proceed that way. However i would rather get 40MHz in a row. Many thanks, Jorge On 29 January 2015 at 14:07, Martin Braun <martin.br...@ettus.com> wrote: > On 01/29/2015 01:48 PM, Jorge Gallo wrote: > > I understand the given values of host bandwidth for each protocol: > > > > USB 2.0 8 (MS/s @ 16-bit I/Q) > > If you go down to 8-bit I&Q, you will get twice that amount, if that's > any help. > > > USB 3.0 61.44 (MS/s @ 16-bit I/Q) > > > > > > > > However I would like to process 40MHz of analogue BW in GNURadio over > > USB 2.0 > > > > > > I fully understand a continuous reception is not possible to manage > > since it would require 40 IQ MS/s and I am limited to 8MS/s. > > > > > > > > However, is it possible to take snapshots of 40MHz over the time so that > > I am able to receive bits of 40MHz with USB 2.0 which are not continuous > > in time? > > > > Are there buffers in the FPGA that manage this kind of operation? > > None big enough for anything useful. > > It seems like attaching a USB3.0 connector would be simpler than running > 5 USRPs? Not that I would complain about the sales :) > > M > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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