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Questions tagged [gnuradio-companion]

GNU Radio Companion (often abbreviated as GRC) is a graphical toolkit to design GNU Radio flowgraphs and whole signal processing algorithms.

GNU Radio Companion (often abbreviated as GRC) is a graphical toolkit to design GNU Radio flowgraphs and whole signal processing algorithms.

It's not an independent project, but is included in GNU Radio. The graphically defined flow graphs get translated into Python source code that instructs GNU Radio to logically connect the blocks used.

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GNU Radio, How to do BPSK Modulation and Demodulation using HackRF One?

I can say I'm a beginner and inexperienced in communication. I'm using GnuRadio, and after software testing I'll try to test using HackRF One. At first, I want to create a RF Signal, and send the signal as BPSK modulated signal(because I read…
celikorenerol
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RTL2832U: Building a FM Receiver with GNC on Windows

I have been using SDRSharp for quite some time, listening to various stations, and I wanted to divulge more into how I can create tools using GNURadio. I downloaded GNURadio Companion 3.8.0.0 and ran through the first three lessons. I was following…
James Hayek
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Gnu Radio and vlc result in RuntimeError?

I am trying to make a stream (tried both .mp4 and .TS file)from vlc to GNU radio companion back to a different VLC windows with the use of UDP on a windows 10 PC. The program is simple: UDP source(IP:127.0.0.1 + port:5003) to a UDPsink(IP: +…
Smittie
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Annoying Python list index out of range error

I have an array already initialized to be a 3x6 array called self.ascii. I am trying alter a 3x3 block of this array at a time, using the code: for x in range(3): for y in range(3): # currY and currX represent the bottom left corner of…
Trov4
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What does the attribute mean in gnuradio 3.7 XML and what is its equivalent in 3.8 YML?

I'm trying to find out what does the attribute mean in gnuradio 3.7 XML and what is its equivalent in 3.8 YML. As I deduced from this post, documentation that describes GRC OOT schema attributes probably doesn't exist. I want to change the…
Roman Kwaśniewski
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GRC OOT schema documentation

I'm looking for GnuRadio Companion OOT schema documentation. I saw this post and I'm not satisfied. I saw something more like a tutorial about YAML and…
Roman Kwaśniewski
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The Head and Skip Head blocks do not appear to be writing to all file sinks

I have the following flowgraph to capture a small specified band. It seems that the final file sink never gets written to because it always has a 0 byte size. This is the first time I have tried to use the Head and Skip Head blocks, so I am not…
Aaron Smith
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Windows 8 - QT GUI Sink Windows don't open

console window for I'm kind of new to GNURadio, and I installed "GNURadio 3.7" . I'm trying to generate a 1 GHz signal, and then saw the generated signal on screen using "QT Gui Frequency Sink". When I try to run the block diagram, it works, but…
celikorenerol
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2 Rx with LO offset in gnuradio with Ettus USRP B210 don't work

I have some problem to get two Rx channels running on the ettus USRP B210 in gnuradio. With only one input channel it works fine and i see my signal, but when i add a second channel I only see noise. My receiving signal is at 404MHz with a bandwidth…
ludw
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USRP N210 overflows in virtual machine using GnuRadio

I am using the USRP N210 through a Debian (4.19.0-6-amd64 #1 SMP Debian 4.19.67-2+deb10u1) VM and run very quickly into processing overflow. GnuRadio-Companion is printing the letter "D" the moment one of the CPUs load is reaching 100 %. This was…
ben
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Send data out from GNU Radio companion to other software via TCP/LAN protocol

I am new to GNU Radio and Linux. I want to send processed data out from gnu companion to a software/dashboard whose input is LAN/TCP/IP. I am using RTL dongle and USRP and i have done GMSK demodulation successfully.Now want to send the demodulated…
Daniel
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Running a GNU Radio Custom Out of Tree (OOT) Module on a USRP Device

I have created a GRC flowchart that includes a custom OOT module. The flowchart has been compiled, and the resulting .py file copied to my USRP device. When I try to run this file on the USRP, I get an error: no module named…
Joe
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GNU Radio : UDP stream data converter

I have an external device, which sends UDP unicast packet of size 556 bytes. I need to transform each packet to vector of size 270 with uint16 inside. And then I'd like to plot this waveform as time-domain data. Here is a c++ code to do this…
Dmitry
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Python error when trying to use gnuradio/uhd in Windows

I am trying to install UHD and gnuradio on Windows. I can't find binary files for gnuradio, it looks like the link to their binary install is broken and the website is down. So I used gnuradio in Pothos Project. When I run my grc file in gnuradio,…
Nhome
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[gnuradio-companion]ModuleNotFoundError Cannot import gnuradio

On Ubuntu 16.04, when I run gnuradio-companion, I get this error： ModuleNotFoundError Cannot import gnuradio. Is the python path environment variable set correctly? All OS: PYTHONPATH Is the library path environment variable set correctly? …
silience
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