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Re: [Discuss-gnuradio] Benchmark_Tx Problem


From: sibar002
Subject: Re: [Discuss-gnuradio] Benchmark_Tx Problem
Date: Fri, 6 Apr 2012 16:59:59 -0700 (PDT)

Hello Ben,

Thank you for your response. I tried adjusting my bitrate in order to
prevent this from happening, but I continue to have the same problem. I
forgot to mention that I am running a dual OS on my computer (Windows and
Linux). Could this be causing the overflow problem? Thank you again. I
really appreciate any help or advice.

Thanks
Sam



Ben Hilburn-3 wrote:
> 
> Sam -
> 
> (O)s indicate that there are overflows occurring - your computer is not
> able to keep up with the data rate, and is falling behind in processing as
> new packets arrive.
> 
> Cheers,
> Ben
> 
> On Fri, Apr 6, 2012 at 1:39 PM, sibar002 <address@hidden> wrote:
> 
>>
>> Hello,
>>
>> I am using USRP 1 with the XCVR2450 daughterboard. I am also using Ubuntu
>> 10.0.4 with gnuradio-3.5.1. I have tried running benchmark_tx/rx with the
>> following parameters:
>>
>> ./benchmark_tx.py -f 2.45G -A J1 --spec B:0
>> ./benchmark_rx.py -f 2.45G -A J1 --spec B:0
>>
>> I am not consistently able to receive the packets that are sent. I
>> sometimes
>> receive the initial packets, but then program begins to overflow ('O'). I
>> have tried connecting the USRP1s directly with attenuators, and I have
>> also
>> tried using the antennas.  I have also used the uhd_fft.py program in
>> order
>> to make sure that I am receiving a signal. I am able to see a peak at the
>> correct frequency when I am transmitting. I have also tried using the
>> Basic_Tx/RX and LFTX/RX daughter-board and I obtain the same result. I
>> would
>> greatly appreciate any help or advise that anyone could give me. Thank
>> you
>> for your time and help.
>>
>> Sam
>>
>> --
>> View this message in context:
>> http://old.nabble.com/Benchmark_Tx-Problem-tp33645086p33645086.html
>> Sent from the GnuRadio mailing list archive at Nabble.com.
>>
>>
>> _______________________________________________
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>>
> 
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> 

-- 
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