You *can* have 2 rx channels in an N210 (by means of dual DDC chains), but you probably haven't set the subdev spec appropriately (Something like 'A:0 A:0', depending on your daughterboard, check the UHD manual).
Cheers, Martin On 03/18/2016 08:53 AM, Nikos Balkanas wrote: > Hi, > > You can have only 1 RX and 1 TX channel in a N210. You are asking for 2 > RX channels in your flow. Runtime complains that he can access only 1 > channel (Rx0). > > HTH, > Nikos​ > > On Fri, Mar 18, 2016 at 5:39 PM, SUGANYA M <[email protected] > <mailto:[email protected]>> wrote: > > Hi All, > I am using GNU Radio Companion 3.7.5 and USRP N210. > When I implemented a simple flow graph of SIMO system with two > channels using USRP source block ( attached grc flow graph snapshot > for reference), > I am getting following error: > > Traceback (most recent call last): > File "/home/student/SUGAN/ONE_TWO.py", line 130, in <module> > tb = ONE_TWO() > File "/home/student/SUGAN/ONE_TWO.py", line 72, in __init__ > channels=range(2), > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/__init__.py", > line 122, in constructor_interceptor > return old_constructor(*args) > File > "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", > line 1740, in make > return _uhd_swig.usrp_source_make(*args) > RuntimeError: LookupError: IndexError: multi_usrp: RX channel 1 out > of range for configured RX frontends > > Can anyone help me to fix this error? > Thanks in advance > > Regards, > Suganya.M > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] <mailto:[email protected]> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
