Hi Zhenghao - To the best of my knowledge and memory, all of the examples provided by UHD and GR are just single-channel. My guess is you'll need to create your own custom flowgraph to handle 2 output channels from a single input file. That said, if what you hope to do is the equivalent of "tx_samples_from_file" but just pushing the same file to 2 outputs (or even pushing 2 data streams from the same file, one each to each B210 Tx antenna), that shouldn't be difficult to create: copy the file "https://github.com/EttusResearch/uhd/blob/master/host/examples/tx_samples_from_file.cpp"; and use it as a starting point; edit it to do what you want! Good luck! - MLD
On Mon, Jul 22, 2019, at 5:29 PM, Zhenghao Zhang via USRP-users wrote: > Hi, > > I have a very simple task: transmitting data with two antennas of > B210. The data is just numbers in a file and I just need to play the > file. > > I have been able to transmit data by one antenna with the command > tx_samples_from_file. I did a lot of searching but I was not able to > find a similar command to use two antennas. > > I am sorry if this question or some variations of it has been answered > before. Any help is appreciated. > > Thanks, > Zhenghao _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
