Can't connect to B210

arush sharma

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Jul 30, 2025, 10:07:37 PMJul 30

to Powder Users

Dear CyberPowder Staff,

Greetings from Arush and hope this message finds everyone well. For some reason, I am unable to hook to the B210 USRP. I initiated an indoor OTA experiment and can successfully connect to the X310 USRP. But the UE is connected to the nuc1 node, which supposedly uses the B210 radio. I intend to transmit the packet from B210, but unable to find the 'uhd' folder so that I could use the script 'tx_samples_from_file' for packet transmission.

Based on some of the conversations in the group, I power cycled the node but availed no success. The screenshot is attached for reference, where it says uhd_find_devices command is not found. It would be great if I could be helped and pointed out what wrong I am doing.

The link to my experiment is as follows: https://www.powderwireless.net/instantiate.php?profile=9c4ee80c-45cf-11ec-b200-e4434b2381fc&rerun_instance=a0ec7b9e-6d74-11f0-bc80-e4434b2381fc

Thank you for your help,

Arush

cots_ue_problem.png

Dustin Maas

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Jul 31, 2025, 12:56:25 PMJul 31

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Hi Arush,

The profile you have chosen assumes you want to use the COTS UE, so UHD and GnuRadio are not installed. You can easily install both with apt.

-Dustin

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Kirk Webb

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Jul 31, 2025, 1:08:06 PMJul 31

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Arush,

I installed these tools on this node just now, and was about to
respond when Dustin's response came in. As Dustin said, the B210 is
not expected to be used by this profile, so you must install them with
`apt`.

tx_samples_from_file is located here:
/usr/libexec/uhd/examples/tx_samples_from_file

-Kirk

> To view this discussion visit https://groups.google.com/d/msgid/powder-users/B886262C-7F07-4FB9-8FBF-DEB974294982%40gmail.com.

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arush sharma

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Aug 1, 2025, 6:14:32 PMAug 1

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Thank you very much, Dustin and Kirk, for the help and info.

Best regards,

Arush

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