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Questions tagged [usrp]

The USRP series of software-defined radio devices, designed and developed by Ettus Research, are commonly used with GNU Radio, OpenBTS, LabView, and Matlab. The driver, UHD, is also FOSS, so you can program the radios directly through the driver's API.

The Universal Software Radio Peripheral (USRP) series of devices is a Software-Defined Radio (SDR) platform. USRPs are designed and developed by Ettus Research in Santa Clara, California.

The term itself, 'USRP', encompasses all of the radio devices produced by Ettus Research, which include ethernet-based peripherals, USB-based peripherals, and embedded devices that are stand-alone.

The peripheral devices must be plugged into a host computer, from which they are programmed to transmit / receive as the user wishes. The embedded models run a full embedded Linux distribution, and can be used as radios on their own.

USRPs are commonly used with the GNU Radio framework to create complex SDR systems. Another popular usage model is using them as cellular base stations with OpenBTS.

The USRP Hardware Driver (UHD) supports all of the USRP models, and is Free and Open Source Software, released under the GPL.

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How many RFNoC blocks can be added to a x310 USRP?

This is a question I've been trying to get an answer for some time. Is there any limit to the number of RFNoC blocks that can be added to a x310 USRP?
Felipe Augusto de Figueiredo
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How to integrate usrp n200 through redhawk 2.0.7?

I am trying to transmit a signal through usrp in redhawk 2.0.7. For that I made a simple waveform and export it to target SDR in Redhawk explorer view. After that I have a made a node and include usrp uhd device in that node. I have exported this…
Khizra Ilyas
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Buffer underruns on x310 when transmitting and receiving from same channel

I'm running on an x310 across dual 10 Gigabit ethernet, outfitted with twin basic tx rx daughterboards. I'm running on UHD version 3.11.0. Ideally, I would like two simultaneous transmit and receive streams, utilizing both channels to transmit and…
Jason Zheng
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usrp x310 full duplex: receiving flowgraph can cause underflow issue at transmitter side

we are using one usrp x310 with two UBX 160 in a full duplex mode (one ubx for transmitting and the second one for receiving, with a 10G connection). In the code, two separate TX and RX flowgraphs are established (under a single…
rahul kadam
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GNU Radio / Python - USRP receiving and collecting at the same time

I apologize in advance for the lengthy question. I want to make sure I have everything down. I've set up a seemingly simple python script with the help of GNU Radio (and using a USRP b200) to continuously receive a signal, and when this signal…
BBEng
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NI USRP-2920 recognized by GNURadio

I try to operate NI USRP-2920 by GNUradio. At the first, I typed "uhd_usrp_probe". Result is below. [INFO] [UHDlinux; GNU C++ version 4.8.4; Boost_105400; UHD_3.11.0.git-208-g1da86f9c] [INFO] [USRP2] Opening a USRP2/N-Series device... [INFO]…
Tomokazu FUKUDA
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"No UHD Devices Found" in Debian 8.0.6 for Ettus USRP B200

I used Debian 8.0, and no problem for UHD and system's detect USRP B200. But Debian 8.0.6 not detect this device. And have problems under Debian 8.0 for new version USRP B200 - green (old is white). This new Ettus B200 does not work correctly with…
Denis Shtein
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Frequency components less than centre frequency of USRP

I have two USRP N210s connected together as a receiver and transmitter and I'm trying to send multi tone signals across the channel. However, I am finding extra frequency spikes mirrored about the centre frequency for when I send a signal with more…
Roy
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Usrp1 and Gnuradio

I am trying to set up 5 USRP1 and some daughterboards on 2.4 and 5 GHz. Some of them are out of order and some work properly, but I don't know which is which. I am trying to send a symbol (QAM modulation) sequence then I am trying to pass it with a…
Esperius
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GNU Radio and labview

I am using a set of 4 N210 devices with SBX daughter boards where I need to perform a beamforming application. As I understood, the mentioned resync feature in the fractional PLL used is accessed through the UHD driver Do Gnuradio or Labview support…
sara ragheb
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USRP reference clock

At present I work with 2 different USRPs. One of this is the USRP2 and the another one a newer device is the X300. This devices communicate each about QPSK and a test algorithm. The USRP2 has an output frequency shift of 20 kHz and make it…
Nils
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Ettus UHD, compiling Transceiver52M

I have a problem compiling Transceiver52M for OpenBTS, I have a Ettus B200 peripheral, and have installed UHD version UHD_003.010.git-156-g2d68f228. But I get the following errors once I get to compiling Transceiver52M; the filing lines are (the…
user1898027
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In gnuradio, how much work is done in the fpga?

Some of these ettus boxes have some serious (& seriously expensive) FPGA's in them. Seems like a waste if all they do is pass data from the ADC to the ethernet bus. When I build something in GRC how much signal processing is done in the FPGA & how…
apchar
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time of start saving in rx binary file in python script?

I need help regarding gnuradio python script. I am transmitting and receiving in usrp through binary file. Is it possible to know the time when python script start saving the data in binary file (print(rx_stream_time)--something like this) and how…
Sanjoy Basak
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Does OpenBTS needs GNU Radio to work?

I'm trying to deploy OpenBTS with USRP B100 using UHD. When I installed GNU Radio by apt-get it installed UHD as well, but when I tried to use uhd_usrp_probe to find my usrp it didn't work. Then I uninstalled uhd with the command: "apt-get purge…
Emerson Oliveira
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