Re: [Discuss-gnuradio] Examples for USRP at 2.4-2.9Ghz

[Matt Ettus]

Ravi,

All of these questions have been answered in the past, and are in the
list archives:

http://lists.gnu.org/archive/html/discuss-gnuradio/

> I tried to run these two examples you told. I am able to see some graph , but 
> am getting an error while running usrp_fft.py.
> the eroor is ' ** (python:4223): WARNING **: IPP request failed with status 
> 1030' . 
>   
This is not a problem.  It is a python warning you can ignore.
> and no response at all while running usrp_siggen.py . able to see 'Press 
> enter to quit:' after the command.
>   
This is the correct behavior.  It means the signal generator is
running.  Signals come out the antenna ports.
> i tried one more example- 'wfm_rcv_gui.py' and failed in running this one 
> too. i am getting the RX data graphs , but can't listen any audio . i tried 
> the strongest freq fm radio signals at my area . the error am getting along 
> with this examples is 
> ' address@hidden usrp1]# python wfm_rcv_gui.py 107.7
>   
>>>> gr_fir_fff: using SSE
>>>>         
>
> ** (python:5207): WARNING **: IPP request failed with status 1030
> audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
>   card requested 44100 instead.'
>   
Also answered in the past.  The problem is that your soundcard doesn't
support the 32000 samples per second rate.  The solution is to add "-O
plughw:0,0" to the end of your command line (without the quotes), which
causes ALSA to resample the output to be at a compatible sample rate.
>
> please get back to me regarding this
>   

Most of the people answering questions on the list are volunteers
(myself excluded, of course).  Statements like this imply that you are
"owed" an answer, and this makes it  _less_ likely that you will receive
one.

Matt