Re: [Discuss-gnuradio] usrp2 tune two different frequencies

[Matt Ettus]

address@hidden wrote:
> On Mon, 20 Apr 2009, Johnathan Corgan wrote:
>
> > On Mon, Apr 20, 2009 at 7:59 AM,  <address@hidden> wrote:
> >
> > > Is there any reason why the situation could not be the same as with the
> > > USPR1, with which I can program 2 DDC's on 1 LFRX daughterboard (with 
> > > the
> > > appropriate mux) to tune in two separate frequencies?
> >
> > Yes, the USRP2 only has one DDC in the FPGA code.
> >
> > Johnathan
> I guess I was just curious why there is only one DDC in the FPGA, and if 
> it's possible in future that more than one will be made available.


It wouldn't be hard at all to put a second one in there, along with a 
second DUC.  Everything is set up to hold it, and there is enough space.

We just haven't had a need yet, since the USRP2 only holds one 
daughterboard.  If, however, you want to RX or transmit 2 different 
signals on the same daughterboard, or are using a BasicRX/TX with dual 
independent real signals at IF, then it would make sense.

Matt