[Discuss-gnuradio] fft display frequency spotting

[Rosciano]

Hello everybody
I would like to know how I can get a frequency
precision with the fft_sink.
If anybody can help me, I would like to receive any
example with this. 
I saw this link
http://lists.gnu.org/archive/html/discuss-gnuradio/2005-08/msg00019.html
but when I implemented in the mc4020_fft.py, I had
problems. 

thanks for the attencion

grateful, Rosciano

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