Re: [Discuss-gnuradio] DBSRX AGC?

[Robert Miller]

Hi Marcus,
Thanks for the quick response.  Attached is my code for piping data from 2
DBSRXs to separate files.  I simply made a few modifications to the
multi_file.py script in ~/gnuradio-examples/python/multi-antenna/.  After
seeing the phenomenon over multiple runs I then switched to using a single
DBSRX and the standard usrp_rx_cfile.py script.  Using both DBSRXs I
witnessed the same magnitude oscillations, with them only occuring at
leading edge transitions.  
Thanks!
Rob



Marcus D. Leech wrote:
> 
> Robert Miller wrote:
>> Hi,
>>
>>
>> 1)  Is there an AGC in the DBSRX?
>> 2)  If yes, can I turn it off?
>>
>>   
> The only gain control on the DBS_RX is entirely under software control. 
> If the software doesn't control it, it stays the
>   same.  I'm not sure why you're seeing magnitudes "inverted" between
> DBS_RX.
> 
> Could you perhaps share the code?
> 
> I have an application that uses two DBS_RX, looking at two different
> polarizations.  They don't see this
>   phenomenon at all.
> 
> 
> -- 
> Marcus Leech
> Principal Investigator, Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org
> 
> 
> 
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> 
http://www.nabble.com/file/p24046153/MyMultiFile2.py MyMultiFile2.py 
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