qa_fir_filter test fails in make test

in/sh" "qa_fir_filter_test.sh" Directory: /home/ali/opt/gnuradio/build/gr-filter/python/filter "qa_fir_filter" start time: Dec 16 15:35 +0330 Output: -- ...FF.. ==

cmakelists.txt fot C++ IDE

Hi all, I want to work with simple gnuradio objects in a C++ IDE (e.g. Qtcreator) using CMake build system. I am running ubuntu 22.04 and gnuradio 3.10.11.0. How can I write its cmakelists.txt? For example, to just test these PMT lines: #include // [...] pmt::pmt_t P = pmt::from_long(23); std::

Re: cmakelists.txt fot C++ IDE

Done! Big Thanks! I just connected a "Signal Source" to a "Null Sink" in GRC, changed the Option's "Output Language" to C++, pushed "Generate" (F5), took a look at the generated CMakeLists.txt, and found the answer. Thanks! On Thu, Aug 1, 202

[Discuss-gnuradio] multiple gnuradios in parallel

Dear friends, I'd like to have at least two gnuradios in parallel in ubuntu and I insist on installing them "from source" as well. I would be appreciated if you could possibly help me with this. regards Ali ___ Discuss-gnuradio maili

[Discuss-gnuradio] problem with tensorflow in gr-inspector

_session_bundle_from_path meta_graph_filename)RuntimeError: Expected meta graph file missing /tmp/cnn/0001/export.meta* would be grateful if you could possibly help me with this. regards Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

multiple messages in GRC as different commands

Hi all, I wonder if it is possible to command a "Signal Source" block in GRC to change its frequency to several values with the messages. For example, I want to change its frequency to 100 different values during run-time using available blocks (if possible). thanks in advance

bug report

lar QAM which defaults to MSB first that causes Simulink and GRC to not have the same output. regards, Ali

OOT block swig problem (maybe qmake vs cmake)

practical modems. BUT I decided to be more organized by using more object-oriented features. The problem is: the code in qt-creator compiled OK but when I add the block to GRC, I get this error: Generating: '/home/ali/grdrills/top_block.py' Executing: /usr/bin/python2 -u /home/ali/g

is buffer flushing possible in GNU Radio?

Hi list, Is there a way to make a block (in fact general block) flush its internal buffer at the end (when there are no input items)? (For example, a simple FIR filter has number of taps more output items than its input items) Thanks in advance! Ali G. Dezfuli

transient behavior of "QT GUI Time Sink"

Hi all, I would like to know how the "QT GUI Time Sink" block acts when its input items are limited. For instance, when I connect a "Vector Source" with range(10) as the vector, it shows nothing except when I change its "Number of Points" to 8 or less !!! I really

USRP b200mini initial behavior

with this. regards, Ali G. Dezfuli

comparing scalar items, vector items and tagged streams

Hi all, I have two chronic questions and would be grateful if anybody helps me: 1- between passing items as vectors and using streams with tags which one is more performant? 2- do vector items lose performance comparing scalar items? Thank you, AGD

comparing scalar vs vector items

Hi all, I'd like to compare two GR blocks in terms of performance (especially throughput) 1- using scalar items together with "set_output_multiple (int multiple)" at the constructor, and 2- using vector i

GR manual (doxygen) has some errors!

Hi all, I'd like to report errors in the GR manual site: *https://www.gnuradio.org/doc/doxygen/ * I can't search by typing in the top right box! I've tested Firefox, Chrome, Chromium, but the same result! For example in Firefox I got this error: Firefox Can’t

is there anybody who can search at the GR manual?

Hi all, I still have a problem with the GR manual ( https://www.gnuradio.org/doc/doxygen/) In firefox I receive this error: Firefox Can’t Open This Page *To protect your security, www.gnuradio.org will not * *allow Firefox to display the page if another site has * *em

qt gui frequency sink in frequency hopping

Hi all, I work on a Frequency Hopping (FH) Tx and Rx in the same grc flowchart in 3.7.13.4 in Ubuntu 16.04. At the end of the Tx chain, I put a "Qt GUI Frequency Sink", but it just shows part of subchannels in the spectrum!!! I changed its parameters especially "Update Period" but no change. The ve

Re: [Discuss-gnuradio] usrp_source to file_sink ... what gets written when no transmission

Thanks Jason. On Wed, May 20, 2009 at 10:16 AM, Jason Uher wrote: > > I don't understand why is it that the > > usrp_source writes some junk data to the file_sink even when I am not > > transmitting from the other USRP. Is it possible that it might be picking > up > > some stray signals at 2.4G

[Discuss-gnuradio] Receiving Spread Spectrum signals in Gnuradio

ngs should I be looking into or taking care of in order to implement a DSSS system. I have just started working on my "Communication Systems" knowledge so please bear with me. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-g

[Discuss-gnuradio] Why d_phase in Costas loop different in gr_costas_loop from gr_mpsk_receiver?

Hi, Why is the d_phase equation different in these two files? d_phase += d_alpha*phase_error; // In gr_mpsk_receiver.cc and d_phase = d_phase + d_freq + d_alpha * error; // In gr_costas_loop.cc The d_freq term is omitted and I don't understand why. Thanks

[Discuss-gnuradio] Early Late Prompt Correlation and Costas Loop implementation

the more difficult. Can you please tell me where I am wrong and what could be done. Thank you for taking time to answer to my question. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss

Re: [Discuss-gnuradio] How to view data samples when running fm radio

s=*gr*.*file_sink*(*gr*.sizeof_gr_complex, "file.txt") and then connect usrp.source to this object s. On Wed, May 27, 2009 at 3:06 AM, Zainab Qureshi wrote: > In usrp_wfm_rcv.py, there is a command self.u = usrp.source_c() > > Now how do we use the gr.file_sink() in this file? > > On 5/27/09, E

Re: [Discuss-gnuradio] Early Late Prompt Correlation and Costas Loop implementation

right? Can you also tell me how fmax and fmin are calculated? For example, dbpsk.py has fmax=0.1 and fmin=-0.1. How do we get these? Thanks, Ali On Wed, May 27, 2009 at 8:24 AM, Tom Lutz wrote: > > > > As in Gnuradio there is no such thing as a carrier as the signal is in > &

Re: [Discuss-gnuradio] Early Late Prompt Correlation and Costas Loop implementation

Thanks a lot Tom for your help. I now understand how Costas loop operates. After all the tests that I did following your suggestions I was able to find the answer for a lot of my unanswered questions. Thanks again, Ali On Wed, May 27, 2009 at 10:42 AM, Tom Lutz wrote: > > I am using Fle

Re: [Discuss-gnuradio] Early Late Prompt Correlation and Costas Loop implementation

Hi, I have another question regarding this. I sunk the output from the Costas onto FFTsink and got this. http://img172.imageshack.us/img172/9956/costasfft.jpg Are the peaks that appear on this the lower and upper sidebands of the data signal? Thanks, Ali On Thu, May 28, 2009 at 5:38 AM, Mir M

Re: [Discuss-gnuradio] Early Late Prompt Correlation and Costas Loop implementation

). Thanks, > On Thu, May 28, 2009 at 5:38 AM, Mir M. Ali wrote: > >> Thanks a lot Tom for your help. I now understand how Costas loop operates. >> After all the tests that I did following your suggestions I was able to find >> the answer for a lot of my unanswered questions. &g

Re: [Discuss-gnuradio] Executing python scripts with Gnu radio

pdf/> If you think the installation was without errors then upon running dialtone.py you will hear a sound. Nothing is printed on screen. Turn on the volume and run the program again. Try other programs from example and if you have usrp boards then try the ones in digital directory. Ali. On Fr

[Discuss-gnuradio] Criteria for choosing samples_per_symbol value

will it have. How will the quality of signal change? Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] About Top_block

ding how run/connect work as I never felt it was necessary to do so. I believe in "Why reinvent the wheel?" philosophy and I am happy with it. Good Luck Ali On Tue, Jun 16, 2009 at 4:51 AM, Chun-Ta Kung wrote: > Hello, > I am new to gnuradio, and I felt confused with "glue

Re: [Discuss-gnuradio] grc

The examples are also found in /usr/local/share/gnuradio/examples/grc On Wed, Jul 8, 2009 at 1:14 AM, Josh Blum wrote: > You probably have an error in the flow graph: are any blocks or connections > in red? The error message will be in the parameters dialog. > > Also, try running some of the exa

[Discuss-gnuradio] Having a higher samples per symbol (greater than 7) with lower bitrate

Hi, the maximum samples per symbol value that benchmark_tx has is 7. What happens if I change it to a higher value and reduce the bitrate such that the usrp constraints are still met. I read somewhere that having a sample per symbol value greater than 7 is impractical. Why?

Re: [Discuss-gnuradio] blks2.mod, blks2.demod

Look into /usr/local/lib/python2.x/site-packages/gnuradio directory. You will find answers to all your questions. Good luck On Mon, Jul 13, 2009 at 4:32 PM, udadidd wrote: > > I was trying to understand benchmark_tx and benchmark_rx files. I see > blks2.mod_pkts being used. and blks2 being impo

Re: [Discuss-gnuradio] Any implementation of Spread Spectrum

on is can I just use the upsampler and multiply the upsampled sequence with the received signal samples? 2. Where will the AGC and the RRC filter go in this arrangement? Any help would be appreciated. Thanks. Ali On Tue, Feb 24, 2009 at 11:23 AM, Johnathan Corgan < jcor...@corganenterprises.co

Re: [Discuss-gnuradio] Any implementation of Spread Spectrum

uence becomes less orthorgonal when you > this(worse auto-correlation). > > On Wed, Jul 15, 2009 at 9:27 AM, Mir M. Ali wrote: > >> Hi Johnathan, >> I have a few question regarding implementation. The book that you referred >> earlier was of great help. Thanks. >&

[Discuss-gnuradio] Why does increased Samples per Symbol result in underruns?

Hi, I used benchmark_tx.py with dbpsk modulation with Samples per symbol=7 and higher. I found that this resulted in lots of USRP underruns(uU). Why is it so? Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org

Re: [Discuss-gnuradio] Why does increased Samples per Symbol result in underruns?

Does that mean that the data being sent is lost or is it just that USRP is waiting for it to arrive? On Mon, Jul 20, 2009 at 6:30 PM, Eric Blossom wrote: > On Mon, Jul 20, 2009 at 05:29:02PM -0500, Mir M. Ali wrote: > > Hi, > > I used benchmark_tx.py with dbpsk modulation w

[Discuss-gnuradio] Installation problem CentOS ... FFTW3F

Hi, I have a problem installing gnuradio on Centos-5. I installed fftw-3.2.2 and ran the configure script in gnuradio. It shows this error as it cant find the fftw3f. ecking for FFTW3F... configure: error: Package requirements (fftw3f >= 3.0) were not met: No package 'fftw3f' found Consider adju

Re: [Discuss-gnuradio] Installation problem CentOS ... FFTW3F

rote: > On Fri, Aug 07, 2009 at 12:16:31AM -0500, Mir M. Ali wrote: > > Hi, > > I have a problem installing gnuradio on Centos-5. I installed fftw-3.2.2 > and > > ran the configure script in gnuradio. It shows this error as it cant find > > the fftw3f. > >

Re: [Discuss-gnuradio] newbe question

It's clear. Just edit the qwtconfig.pri file. The following steps I believe were followed. wget http://superb-east.dl.sourceforge.net/sourceforge/qwt/qwt-5.0.2.tar.bz2 tar jxf qwt-5.0.2.tar.bz2 cd qwt-5.0.2 The directory qwt-5.0.2 has a file named 'qwtconfig.pri'. Use any editor to open the file

Re: [Discuss-gnuradio] Wireless sensors compatible with usrp

Micaz work in the 2.4 Ghz band so i guess if you are using a daughterboard that work in that frequency band then that should work. Check this out. https://www.cgran.org/wiki/UCLAZigBee In the US this specification adheres to the 2.4 GHz band. Thanks, Mir On Tue, Sep 15, 2009 at 9:45 AM, tronix w

Re: [Discuss-gnuradio] dBPSK modulation doen't use gr_phase_modulator_fc.cc??

Look at dbpsk.py code in /usr/local/lib/python2.*/site-packages/gnuradio/blks2impl. I hope that will answer your question. :) Mir On Wed, Sep 23, 2009 at 5:22 PM, tom_unaff wrote: > > Hello, > I am using dBPSK modulation, and I don't see that PM modulation written in > C++ is used. It seems tha

Re: [Discuss-gnuradio] Problem with the bbn code on GNU Radio

I think this version of bbn that you have lots of errors in it. I too faced a lot and had to correct the code at many places. Try the other latest versions. You can download them from the CGRAN website. Download douggeiger and the uspr versions. I personally installed the douggeiger version on my

Re: [Discuss-gnuradio] another newbie question

I never installed Gnuradio using a Debian package but if GRC is working that means your Gnuradio installation must be complete. Why don't you try running a few example programs and see if they work. Run the dial_tone.py in the /usr/local/share/gnuradio/examples/audio directory. If you want to use

Re: [Discuss-gnuradio] different sample rate at inputs

I think the output is equal to the rate of the slower stream. The multiply_ff block multiplies inputs from two different streams so the work() function sees input available on these streams and multiplies and outputs it. It doesn't have any clue of the rate at which they are generated. Until data i

Re: [Discuss-gnuradio] cgran.org down?

I am copying a previous mail. --- CGRAN is kind of up... https://128.2.212.19/ our CS department got a new building, and our machines got re-assigned IP addresses when the machines were moved. I've asked Eric to update the DNS record for cgran.org, hopefully this goes through

[Discuss-gnuradio] Package install problem on different computer.

Hi, I have a package with a few gnuradio modules that I developed. This package installs wihtout a hitch on my laptop. I then copied the package folder on to two ohter computers but the installation always fails. When doing 'make' it gives errors that I don't understand. Will someone help me on thi

[Discuss-gnuradio] dbpsk.py logging problem

Hi, I tried to log the data from benchmark_tx.py using dbpsk modulation but for some reason it doesn't happen. --log option works on other computers but not on my laptop. I have gnuradio-3.2svn installed. Thanks, Mir ___ Discuss-gnuradio mailing list Dis

Re: [Discuss-gnuradio] Package install problem on different computer.

happening! > > Try running ./bootstrap and ./configure before make. > > -Josh > > Mir M. Ali wrote: > >> Hi, >> I have a package with a few gnuradio modules that I developed. This >> package >> installs wihtout a hitch on my laptop. I then copied the package fo

Re: [Discuss-gnuradio] Any implementation of Spread Spectrum

Hi Johnathan, Is your code public yet? On Fri, Jul 17, 2009 at 12:57 AM, Mir M. Ali wrote: > Thanks, I will try this out. > > On Thu, Jul 16, 2009 at 11:34 AM, Colby Boyer wrote: > >> In regards to 1. >> >> From what I have experienced, you can multiply the receiv

Re: [Discuss-gnuradio] Two questions

http://thre.at/gsm/ This might be of some help too. On Fri, Oct 2, 2009 at 12:19 PM, Modesto Aguirre Gomez < modestoagui...@hotmail.com> wrote: > Hello, > I am researching information about some Radio Frequency products which > emulates a base transceiver station for gsm. > > I saw in your web

Re: [Discuss-gnuradio] Two questions

http://thre.at/gsm/ This might be of some help too. On Fri, Oct 2, 2009 at 12:13 PM, Modesto Aguirre Gomez < modestoagui...@hotmail.com> wrote: > Hello, > I am researching information about some Radio Frequency products which > emulates a base transceiver station for gsm. > > I saw in your web

[Discuss-gnuradio] Did you ever come across this type of error?

ome help on this. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] failed to allocate buffer size error

Hi, Why does this error occur when usrp_sink is replaced with a file_sink in the transmit_path? *gr_fir_fff: using SSE gr_vmcircbuf_sysv_shm: shmget (0): No space left on device gr_buffer::allocate_buffer: failed to allocate buffer of size 64 KB terminate called after throwing an instance of 'std

Re: [Discuss-gnuradio] failed to allocate buffer size error

r M. Ali wrote: > > Hi, > > Why does this error occur when usrp_sink is replaced with a file_sink in > > the transmit_path? > > > > *gr_fir_fff: using SSE > > gr_vmcircbuf_sysv_shm: shmget (0): No space left on device > > gr_buffer::allocate_buffer: failed t

[Discuss-gnuradio] Flowgraph generates output even when the input exhausts

Hi, I developed a gnuradio block that takes 2 inputs. Input_01 is coming from a source that repeats and Input_02 is coming from a source that exhausts after a while. The output should only be generated when there is data on both the input lines. I see in my flowgraph that even when the data on inpu

Re: [Discuss-gnuradio] Flowgraph generates output even when the input exhausts

There was a problem in my block. I fixed it. I am using gr_block and cosume_each. Thanks for the help On Sat, Dec 5, 2009 at 8:54 AM, Eric Blossom wrote: > On Thu, Dec 03, 2009 at 11:16:01AM -0600, Mir M. Ali wrote: > > Hi, > > I developed a gnuradio block that takes 2 inpu

Re: [Discuss-gnuradio] Unable to run TUNNEL.PY in usrp.

You must give us more information to work with to help you out. On Wed, Dec 23, 2009 at 7:58 AM, amarnath_iitm wrote: > > Some one please help me. > > > amarnath_iitm wrote: > > > > hi , > > I am using Fedora Core 11 OS. I have succesfully executed > > benchmark_tx.py, benchmark_rx.

[Discuss-gnuradio] Why do I keep having libtool issues during installation

Hi friends, I am completely confused and need some help. I have a few gnuradio blocks that I made and the installation worked perfectly fine earlier when I worked on my laptop. A few months ago I tried installing that package on a different computer and I had issues with the libtool the errors of w

Re: [Discuss-gnuradio] Why do I keep having libtool issues during installation

wrote: > Did you copy your build directory to another computer? I would re-run > ./configure or start from a cleaned build tree. > > -Josh > > Mir M. Ali wrote: > >> Hi friends, >> I am completely confused and need some help. I have a few gnuradio blocks >>

Re: [Discuss-gnuradio] usrp with gnu issue

This will install almost everything you need. It seems grc wasn't configured. You might want to find out why as GRC is an indispensable tool for a gnuradio user. good luck On Mon, Jan 4, 2010 at 1:34 PM, sandeep mishra wrote: > Hi Eric, > Thank you for your guide, I just performed your specifie

[Discuss-gnuradio] What does this error mean during installation of gnuradio from latest git source

o problems during the installation of boost. A little help will be appreciated. Thanks, Ali make[5]: Entering directory `/opt/gnuradio/gnuradio-core/src/lib' /bin/bash ../../../libtool --tag=CXX --mode=link g++ -g -O2 -Wall -Woverloaded-virtual -pthread -o gnuradio-config-info gnuradi

Re: [Discuss-gnuradio] What does this error mean during installation of gnuradio from latest git source

the newer one obtained through git. Thanks, Ali On Wed, Jan 6, 2010 at 11:43 AM, Eric Blossom wrote: > On Wed, Jan 06, 2010 at 01:09:57AM -0600, Mir M. Ali wrote: > > Hi, > > I installed gnuradio a million times before without any major problem on > > Ubuntu. I cannot figu

Re: [Discuss-gnuradio] Boost Problem in Compiling Current Trunk

t the same error still persists. A little help will be appreciated. Thanks, Ali On Thu, Jan 1, 2009 at 3:15 PM, Dimitris Symeonidis wrote: > Happy Birthday, Firas! > > PS I don't think compiling GnuRadio is the best way to spend one's birthday > :-) > > > Dimitris S

[Discuss-gnuradio] spread data in gnuradio

hi all i want to spread binary data read from a file using a PN sequence. The PN sequence is generated by a LFSR. Is there any gnuradio block that can help me do this. The gr.glfsr_source_b generates the sequence continously. If there isn't any block that can help me do this, can you suggest a

"File Source" to "Packet Tx" connection

Hi all, I want to connect a "File Source" to "Packet Tx" (the hier block). I wonder what the best practice is. The deprecated "Packet Encoder" got streams as input, but the new "Packet Encoder" just gets messages. versions: Ubuntu 22.04 GR 3.10.11.0 Thank you!

dvbt2 transmitter can not be real-time with LimeSDR

When I run dvbt2 transmitter examples from gr-dtv without any hardware, “Probe Rate” block in GRC shows 15e6 samples per second at the output of the Tx (which needs about 9 Msps to work in real-time.) Next, I connected USRP B200mini, but it showed underruns. Talking to the community, they said UHD

Re: dvbt2 transmitter can not be real-time with LimeSDR

itrate will be scaled accordingly. > > The DVB-T2 bitrate calculator is here. > > https://github.com/drmpeg/dtv-utils/blob/master/dvbt2rate.c > > Ron > On 9/29/24 22:30, Ali G. Dezfuli wrote: > > When I run dvbt2 transmitter examples from gr-dtv without any hardware, >

Re: Text file transmission using GNU radio/SDR X300

ith an external python program. > > Hope this helps. > > Steve Hageman > > On 7/9/2024 6:34 AM, Fazal Muhammad Ali Khan via GNU Radio, the Free & > Open-Source Toolkit for Software Radio wrote: > > Dear GNU Radio Community, > > > > I am transmitting a text file

<    1   2   3