On Thu, Jun 18, 2015 at 9:14 AM, alok ranjan <alokranjan...@hotmail.com> wrote:
> Hello list, > > > I am beginner for USRP networked series N210. > > I have two N210 connected to my host i.e. laptop. I am trying to check > transmission and reception using two USRP . > > When i am passing the command for transmission it is taking too much time > (running sicne last 3 hours) . I am using benchmark_tx.py and > benchmark_rx.py by passing the below command for the transmission; > > *gnuradio/gr-digital/examples/narrowband$ sudo python benchmark_tx.py > --args=addr=192.168.10.4 -f 800e6 -r 500e3 -A TX/RX -M 0.5 --tx-gain 10 > --ampl 0.5* > > Why this almost infinite time. However, this issue was not with the USRP 1 > series with the same commands. > > what i am doing wrong while transmission? > > Please guide me in this regards. > > > Thank you, regards > I'm not sure what you mean by it being "almost infinite time"? You mean it's taking too long to start transmitting? Thing 1: don't run this command with sudo. There's no need for that. If you are having issues with permission talking to the hardware, fix those by installing the udev rules. Thing 2: the benchmark_tx.py script only transmits a finite number of packets. Here you are setting it to 0.5 MB and your transmitting at 0.5 Mb/s, so you should be done in about 8 seconds. Also, what version of GNU Radio are you running? The '--ampl' isn't a supported argument for this. It's '--tx-amplitude'. Run 'gnuradio-config-info -v' to find this out. Tom
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