underrun in usrp n210

[karanjarich]

Am using windows 8.1 i have gnu radio companion after sucessful installation ofusrp on my host computer i decided to run the "gps-sdr-sim-uhd.py -t gpssim.bin -s 2500000 -x 0" am getting an undean with UUUUUUUUUUUUUUUUU how can i prevent this and does it affecting signal transmission and does it affect signal transmission

[bitdust]

you can try uhd_tx_samples_from_file if you are using usrp on windows. like: ./tx_samples_from_file --args="master_clock_rate=50e6" --file gpssim.bin --type short --rate 2500000 --freq 1575420000 --gain 0 --repeat refer: #50

[karanjarich]

i tried this way but unfortunately the cmd responds by saying is not recognized as an internal or external command, operable program or batch file.

On Sat, Jun 23, 2018 at 4:24 PM, bitdust [email protected] wrote:

use uhd_tx_samples_from_file if you are using usrp on windows. like: ./tx_samples_from_file --args="master_clock_rate=50e6" --file gpssim.bin --type short --rate 2500000 --freq 1575420000 --gain 0 --repeat refer: #50 https://github.com/osqzss/gps-sdr-sim/issues/50

good luck!

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[osqzss]

It should be in the /usr/local/lib/uhd/examples/ folder. https://kb.ettus.com/Verifying_the_Operation_of_the_USRP_Using_UHD_and_GNU_Radio

[karanjarich]

One of the software engineers here is suggesting i do buffering on side of my PC how can i go about this

[karanjarich]

this is how I solved the issue just benchmarked the usrp TX and RX using \benchmark_rate --rx_rate 10e6 --tx_rate 10e6 currently i cannot see the flowgraph during transmission

[protortyp]

@karanjarich so what's the command that worked for you?

[Imtiaz08]

Hi @karanjarich can you please tell me what is the command that worked for you?