[Discuss-gnuradio] Re: How to scan the whole ISM band?

[Patrick Strasser]

Goodman Roy wrote am 2008-07-15 18:42:

> However, I have no idea where the destination is.  I thought I can get 
> the data through GNU Radio and then use Matlab to draw the spectrogram 
> to show the spectrum holes. In line 193, the connection seems without 
> the destination.

>                 self.connect(self.u, s2v, fft, c2mag, stats)

Connect takes a variable count of paramters, forming a chain: self.u is 
connected to s2v, s2v is connected to fft and so on.
stats is the final sink and if you look at main_loop, it's read out there.

You can use a file sink to dump data to disk or a fft sink to diplay it 
(or both). Have a look at gr-utils/src/python/usrp_fft.py [1].

If you are unsure how to combine the both, you can find some introducing 
documents at the wiki [2]. I'd really recommend the Python Tutorial [3] 
if you are new to python.

Patrick

[1] 
http://gnuradio.org/trac/browser/gnuradio/branches/releases/3.1/gr-utils/src/python/usrp_fft.py
[2] http://www.gnuradio.org/trac/
[3] http://docs.python.org/tut/
--
Engineers motto: cheap, good, fast: choose any two
Patrick Strasser <patrick dot strasser at student dot tugraz dot at>
Student of Telematik, Techn. University Graz, Austria