Re: [Discuss-gnuradio] GRC:Suitable Sink required

[Firas Abbas]

Hi,

> On Mon, 4/20/09, Saleem Akhtar <address@hidden> wrote:
> Hi,
> It appears that gr.message_sink and gr..msg_queues are for
> digital data. but my flowgraph (periodogram) is for analog
> samples,

This is not true (see: usrp_spectrum_sense.py).


> complex baseband samples from usrp --> stream to vector
> (vectors of fft_size) --> FFT  --> complex to mag squared  --> (sink or
> block to be determined)
> 
> Is their no choice other than file sink?
> 
> Thanks


You can use vector sink. 

ex:

dst = gr.vector_sink_f()

then you can see the data in this vector by:

print dst.data()


Of course you have to run the graph for a while then stop it before doing the 
print.

See :
http://www.mail-archive.com/address@hidden/msg13693.html


BR

Firas