Problems with USRP


We are new in gnuradio and we are trying one example called
“” but we have some problems when it is executing.

Inserting the commands:

export PYTHONPATH=/usr/local/lib/python2.5/site-packages/

python -f 90.9M

the output is:

Using RX d’board A: LF Rx

gr_fir_ccf: using SSE
gr_fir_fff: using SSE
audio_alsa_sink[hw:0,0]: unable to support sampling rate 32000
card requested 44100 instead.
FYI: No Powermate or Contour Knob found

and some wierd noise appeards…

could anyone help up, please?

Thank you.


you have to pass it the parameter -O plughw:0,0

Dimitris S.
“If you think you’re too small to make a difference, try sleeping with
a mosquito!” - Amnesty International

On Wed, Oct 22, 2008 at 10:48, Pedro Sánchez Canal