What is the "fa" frequency you're trying to configure? Given you're using 1 MHz of sampling frequency, fa cannot be greater than 500 kHz.
On Wed, Jun 5, 2019 at 11:24 AM Sneha vasan via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi everyone, > > Can anybody guide me on this???.. I am using x310 with sampling rate of > 1MHz. > > Traceback (most recent call last): > File "/home/sneha/My_waveform/past work/transmit.py", line 414, in > <module> > main() > File "/home/sneha/My_waveform/past work/transmit.py", line 402, in main > tb = top_block_cls() > File "/home/sneha/My_waveform/past work/transmit.py", line 250, in > __init__ > callback=lambda ok, payload: self.digital_ofdm_demod_0.recv_pkt(ok, > payload), > File "/usr/local/lib/python2.7/dist-packages/gnuradio/digital/ofdm.py", > line 223, in __init__ > options.log) > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/digital/ofdm_receiver.py", > line 78, in __init__ > filter.firdes.WIN_HAMMING) # filter type > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/filter/filter_swig.py", > line 143, in low_pass > return _filter_swig.firdes_low_pass(*args, **kwargs) > RuntimeError: firdes check failed: 0 < fa <= sampling_freq / 2 > > > Regards, > sneha > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > -- Leandro Echevarría
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