Re: [Discuss-gnuradio] Problem with the USRP2 not sending both the real and complex values to the computer

[Josh Blum]

With gr-usrp2 driver, I believe that this can be fixed by setting
is_quadrature to true here:
http://gnuradio.org/cgit/gnuradio.git/tree/usrp2/firmware/lib/db_basic.c?h=next#n69

-Josh

With UHD, quadrature is the default setting. And its configurable. :-)

On 12/07/2010 06:39 AM, Alan Jones wrote:
> Hi
> 
> I am having some problems with the USRP2 not sending back to the PC both the
> real and complex parts of the receive signal. I get the real component of
> the signal but the complex part is just zeros. The signal that is being
> receive is transmitted from the same USRP2 board. I am using the Basic RX &
> TX boards, they are connected by two cables. I have test the Basic TX board
> by pugging it into a scope and I get both wave forms out. I have attached a
> copy of my code, it generates 1024 sample long chirp which is repeated every
> second. It then writes only the first 256 000 samples to a file.
> 
> I suspected that there is a flag I have missed during the start up of the
> USRP2 but I can not find it the documentation I have. Any help would be
> great.
> 
> Regards
> 
> Alan Jones
> 
> 
> 
> 
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