In GNU Radio, there is a dual channel B210 example flow graph in the DTV
component. The file is:
<install_dir>/share/gnuradio/examples/dtv/vv018-miso.grc
The download location of the test input file can be found in the README.
<install_dir>/share/gnuradio/examples/dtv/README.dvbt2
It sends an Alamouti coded MISO (Multiple Input Single Output) signal.
Ron
On 7/23/19 11:59, Michael Dickens via USRP-users wrote:
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
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