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Re: [Discuss-gnuradio] Moon Bounce Experiment
From: |
Marcus D. Leech |
Subject: |
Re: [Discuss-gnuradio] Moon Bounce Experiment |
Date: |
Wed, 20 Oct 2010 20:58:57 -0400 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.12) Gecko/20100907 Fedora/3.0.7-1.fc12 Thunderbird/3.0.7 |
On 10/20/2010 08:49 PM, Joseph Craig wrote:
> Hi Marcus,
>
> Thanks for the quick reply...
>
>
> On Oct 20, 2010, at 5:51 PM, Marcus D. Leech wrote:
>
>
>> On 10/20/2010 07:13 PM, Joseph Craig wrote:
>>
>>> 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?
>>>
>>>
>> In what application are you seeing this error?
>>
> python
>
>
I should perhaps have clarified. Which application, written, obviously,
in Python, was producing this error for you?
>>
>>> 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.
>>>
>>>
>> You should investigate gnuradio-companion (GRC), which allows you to put
>> a signal processing
>> graph together graphically--like LEGO building blocks. You can very
>> easily put together a
>> "baseband recorder" application in about 5 minutes this way.
>>
> 5 minutes is pretty enticing seeing how this has to be working friday. How
> long does it take to setup GRC? Is there a guide?
>
>
If built/installed Gnu Radio, you already have GRC/GnuRadioCompanion:
gnuradio-companion
At the prompt in a terminal window should bring up a GRC instance.
All you should need is a usrp-source block, and a file-sink block.
The usrp-source block takes parameters like decimation,
center-frequency, gain.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
- [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/20
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/20
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Eric Blossom, 2010/10/20
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/21
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Marcus D. Leech, 2010/10/21
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/22
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Marcus D. Leech, 2010/10/22
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/22
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Josh Blum, 2010/10/22
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Joseph Craig, 2010/10/22
- Re: [Discuss-gnuradio] Moon Bounce Experiment, Josh Blum, 2010/10/22