Re: [Discuss-gnuradio] When is USRP2 coming out please?

[rlseal]

Brian Padalino wrote:
> On Fri, Aug 8, 2008 at 2:14 PM, yyzhuang <address@hidden> wrote:
>   
> > Hi all,
> >
> > Because if USB, USRP is limited in bandwidth. So do you know when USRP2 is
> > coming out please? Thanks.
> >     
>
> Just wondering - how much bandwidth do you need?
>
> If you are going to run with a fixed amount of decimation for all of
> your tests, you can change the FPGA's CIC to have a fixed value and
> bypass the halfband filter if you want.  This will free up a
> SIGNIFICANT amount of space in the FPGA to perform filtering,
> equalization, and other processing.
>
> The default build allows for some serious decimation, and a LOT of
> options for general SDR.  For more specific purposes, use the sdr_lib
> to your advantage, make your custom chain, and write the rest of your
> custom FPGA load.
>
> I am no expert, but I believe the USRP samples 4 real or 2 complex
> channels at 64MHz.  Is there reason to believe this is not enough
> bandwidth?
>
> Brian
>
>
>   
I could make use of 30 MHz in a single channel at 14-bit resolution; in 
other words - all the USRP2 may offer plus a little (but we will use a 
trigger to select a portion of data at timed intervals - so the USRP2 
will provide what we need). So yes, for our needs, there is reason to 
believe that this will not be enough.

Ryan

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