Re: [Discuss-gnuradio] Moon Bounce Experiment

[Joseph Craig]

I have managed to install gnuradio and run usrp_fft.py with success!

Now for the questions...

1)  I'm always seeing...  "Exception RuntimeError: 'maximum recursion depth 
exceeded while calling a Python object' in <type 'exception.AttributeError'> 
ignored ".  What does this mean, and how to fix it?
2)  How do I save the I/Q stream to disk?  I'm interested in the maximum bit 
resolution for the best dynamic range.  I just want the raw time samples.
3)  Some of the examples (like usrp_wfm_rcv.py) spit out "...aUaUaUaUaU..." to 
the console and the sound is choppy.  What does this mean, and is there a way 
to turn it off?
4)  Is it possible to tweak parameters such as quadrature downconverter 
bandwidth/decimation, etc?

thanks,
Joe Craig
On Oct 20, 2010, at 12:28 PM, Joseph Craig wrote:

> Hello All,
> 
> I'm working on a receiver to detect an 8 MHz signal being bounced off the 
> moon.  We have constructed a dipole array and the RF receivers are complete.  
> I just purchased a USRP kit for data acquisition.  The goal is to stream 
> downconverted I/Q time-series with ~ 1 MHz bandwidth over the USB to a linux 
> box.  
> 
> I've looked through the wiki and I'm going to start installation of gnuradio 
> on Ubuntu 9.04
> 
> What examples should I start running first to make sure I've installed 
> correctly?    
> 
> Great group, I'm really excited to start working with gnuradio.
> 
> Thanks,
> Joe Craig
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