Ravi,

I don't understand -- are you Dave Allen?

Best regards,
Marcus

On 07.09.2015 23:59, Ravi Vemuri wrote:
> Hi all,
> I have been trying to send data between 2 USRP's from the benchmark_tx
> file only to observe that I have been receiving this error.
>
> Traceback (most recent call last):
>   File "./benchmark_tx.py", line 147, in <module>
>     main()
>   File "./benchmark_tx.py", line 111, in main
>     tb = my_top_block(mods[options.modulation], options)
>   File "./benchmark_tx.py", line 49, in __init__
>     options.antenna, options.verbose)
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 135, in __init__
>     freq, gain, antenna)Hi all,
> I have been trying to send data between 2 USRP's from the benchmark_tx
> file only to observe that I have been receiving this error.
>
> Traceback (most recent call last):
>   File "./benchmark_tx.py", line 147, in <module>
>     main()
>   File "./benchmark_tx.py", line 111, in main
>     tb = my_top_block(mods[options.modulation], options)
>   File "./benchmark_tx.py", line 49, in __init__
>     options.antenna, options.verbose)
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 135, in __init__
>     freq, gain, antenna)
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 62, in __init__
>     self._rate, self._sps = self.set_sample_rate(bitrate, sps)
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 70, in set_sample_rate
>     asked_samp_rate = bitrate * req_sps
> TypeError: unsupported operand type(s) for *: 'float' and 'NoneType'
>
> I am unable to understand what this error means? I have tried to search
> in the Internet about this but found nothing relevant. Please advice as
> to what I can do?
>
> Thanks,
> Dave
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 62, in __init__
>     self._rate, self._sps = self.set_sample_rate(bitrate, sps)
>   File
> "/usr/local/share/gnuradio/examples/digital/narrowband/uhd_interface.py",
> line 70, in set_sample_rate
>     asked_samp_rate = bitrate * req_sps
> TypeError: unsupported operand type(s) for *: 'float' and 'NoneType'
>
> I am unable to understand what this error means? I have tried to search
> in the Internet about this but found nothing relevant. Please advice as
> to what I can do?
>
> Thanks,
> Dave
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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