Hi Dave, Firstly, please sign up and post to the GNU Radio mailing list via the official method, not the Ruby forum. GNU Radio has nothing to do with Ruby!
Official GNU Radio mailing list sign-up link: https://lists.gnu.org/mailman/listinfo/discuss-gnuradio In regard to your question, make sure you specify all parameters on the command line, especially frequency, lo-offset and antenna to see whether that fixes it for you. I believe the 'none-type' error pops up because some parameter hasn't been specified and the empty parameter isn't error checked/initialised to '0' correctly if not specified on the command line. This may be related to the following bug: https://gnuradio.org/redmine/issues/705 Mike -- Mike Jameson M0MIK BSc MIET Email: m...@scanoo.com Web: http://scanoo.com On Sun, Sep 6, 2015 at 10:08 PM, Dave Allen <li...@ruby-forum.com> 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) > 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 > > -- > Posted via http://www.ruby-forum.com/. > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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