qa_fir_filter test fails in make test

Hi all, I am installing gnuradio v3.10.8.0 Both UHD and Volk have passed their tests in make test completely (100%) but as I run make test after building gnuradio v3.10.8.0 I get this single error: 139/263 Testing: qa_fir_filter 139/263 Test: qa_fir_filter Command: "/usr/bin/sh"

phase maintenance in a USRP loop

Hi all, I have two transceivers A and B each one is connected by cables to a USRP B200mini (TX/RX for send and RX2 for receive) Using GNU Radio, for each iteration, transceiver A starts to send a burst of RC-filtered, BPSK-modulated PN sequence. Side B waits for the burst and as soon as it gets

Re: B2xx round trip delay

13, 2023 at 8:15 AM Marcus D. Leech wrote: > On 13/08/2023 00:36, Ali G. Dezfuli wrote: > > Hi all, > > I'd like to measure the round-trip delay (RTD) between two B200 USRPs. > > For that, I send a raised-cosined-filtered, BPSK modulated > > PN-sequence, and as so

Re: B2xx round trip delay

I appreciate the information and advice you have shared and sincerely thank you for the assistance. On Sun, Aug 13, 2023 at 8:15 AM Marcus D. Leech wrote: > On 13/08/2023 00:36, Ali G. Dezfuli wrote: > > Hi all, > > I'd like to measure the round-trip delay (RTD) between

B2xx round trip delay

Hi all, I'd like to measure the round-trip delay (RTD) between two B200 USRPs. For that, I send a raised-cosined-filtered, BPSK modulated PN-sequence, and as soon as I get this signal at the receiver, send back the same sequence from the Rx to the Tx, and by correlation, I find the RTD. The

OOT modules: adding a faulty block causes whole OOT module not to work

Hi all, I made an OOT module named gr-tmo, adding some blocks and everything was ok. But when I add another block which uses gnuradio filter (from fir_filter.h), the whole module stops working and even removing the faulty block using gr_modtool doesn't help, which makes me start the whole module

Re: OOT modules config for versions

e so: > > https://github.com/drmpeg/gr-atsc3/blob/master/lib/CMakeLists.txt#L42 > > Ron > On 6/12/23 00:01, Ali G. Dezfuli wrote: > > Hi all, > > I'd like to use libgnuradio-filter in my OOT module/blocks. > I've read the following link which is about configuring OOT modules

OOT modules config for versions

Hi all, I'd like to use libgnuradio-filter in my OOT module/blocks. I've read the following link which is about configuring OOT modules for adding other parts of gnuradio: https://wiki.gnuradio.org/index.php/OutOfTreeModulesConfig I couldn't find the line: set(GR_REQUIRED_COMPONENTS RUNTIME) in

building OOT blocks in Qt editor

Hey! I just switched to the latest versions (GR: 3.6.10, Ubuntu 22.04, UHD 4.3.0, Qt Creator 10.0.1). I've just added an OOT module and block and could successfully build and add it to the gnuradio and it works well. To have a better graphical editor, I just want to develop in Qt editor

Re: Constellation Modulator delay calculation

t;> And I don't the expertise or the time to look at the source code. >> >> So I'm punting back to the list. >> >> -- Cinaed >> >> >> On 1/10/23 03:10, Ali G. Dezfuli wrote: >> > Hi everybody,expertise >> > >> > I just want to k

Constellation Modulator delay calculation

Hi everybody, I just want to know how the delay of the "Constellation Modulator" block in GRC is calculated. In fact, whether you set the block's last parameter "truncate filter transient" or not, a delay of 86 samples could be generated, no matter how many points are in the constellation. This

Re: DQPSK constellation

t; -- Cinaed > > On 1/8/23 23:56, Ali G. Dezfuli wrote: > > Hi all, > I've managed to get to the same signal of the block "Constellation > Modulator" by using these blocks in concatenation: > > { --> repack bits --> differential encoder --> constellation en

DQPSK constellation

Hi all, I've managed to get to the same signal of the block "Constellation Modulator" by using these blocks in concatenation: { --> repack bits --> differential encoder --> constellation encoder (or: chunks to symbols) --> polyphase arbitrary resampler --> } and tried them for bpak, qpsk, 8psk,

Re: usrp n200 problem: error when running uhd_cal_tx_dc_offset

Ok, thanks! You are a great help! On Thu, Dec 29, 2022 at 8:33 AM Marcus D. Leech wrote: > On 28/12/2022 23:55, Ali G. Dezfuli wrote: > > seems it's ok: > > > > $ uhd_usrp_probe > > [INFO] [UHD] linux; GNU C++ version 11.3.0; Boost_107400; > > UHD_4.3.0.0-14-g1e

Re: usrp n200 problem: error when running uhd_cal_tx_dc_offset

: > On 28/12/2022 23:35, Ali G. Dezfuli wrote: > > thanks Marcus, > I have checked benchmark_rate with no lost packets even at the highest > rate of 25 Ms/s. > It is connected via ethernet 1G. > > Isn't it because of outdated firmware and fpga? > > If the FPGA code is

Re: usrp n200 problem: error when running uhd_cal_tx_dc_offset

commands:0 Num timeouts (Tx):0 Num timeouts (Rx):0 Done! On Thu, Dec 29, 2022 at 8:04 AM Ali G. Dezfuli wrote: > thanks Marcus, > I have checked benchmark_rate with no lost packets even at the highest > rate of 25 Ms/s. > It is connected via ethernet 1

usrp n200 problem: error when running uhd_cal_tx_dc_offset

Hi all, I have gnuradio on this system: ubuntu 22.04 uhd 4.3.0.0-14-g1e718d9b gnuradio v3.11.0.0git-316-gc11667ef I have a USRP N200 from 2011 but have not worked with it for the last couple of years. After a long while, I just run $ uhd_cal_tx_dc_offset but got the following error: Creating the

time division duplexing (TDD) with USRP B2xx

I am going to implement a real-time TDD link (in the order of one-millisecond burst durations) using two laptops and two USRP B2xx (in either single antenna or dual-antenna ways). I searched a lot on the net especially GNU Radio's mailing list but could not find any clear techniques or tutorials

Re: vector index selector

ectors, or to add > a block "Vector > Extract" that does what you describe (take vectors in, and have a > parameter with indices > to extract) to master, would certainly be welcome. > > On 14.11.21 07:55, Ali G. Dezfuli wrote: > > Hi all, > > is there a block in GRC to get a vector and output a vector with > selected indexes (as a > > parameter)? > > thanks, > > AGD >

vector index selector

Hi all, is there a block in GRC to get a vector and output a vector with selected indexes (as a parameter)? thanks, AGD

spectrum analyzer problem

Hi all, I wonder if this is a bug or what: I just make a QPSK constellation on the unit circle with quite random data and look at the spectrum by "QT GUI Frequency Sink" block in GRC. With these parameters: FFT size = 1000 Window type = None OR Rectangular I should see a flat line as the

qt gui frequency sink problem with PSD level

Hi all, I wonder if this is a bug or what: I just make a QPSK constellation on the unit circle with a quite random data and look at the spectrum by "QT GUI Frequency Sink" block in GRC. With these parameters: FFT size = 1000 Window type = None OR Rectangular I should see a flat line as

raspberry pi + dvb-t2

Hi all, Is there any experience in transmitting DVB-T2 with gnuradio and raspberry pi (any version)? I just wonder if it can work real-time with about 9 MHz sampling frequency of 8 MHz DVB-T2. Thank you! BR, AGD

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

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 *

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

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

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

USRP b200mini initial behavior

with this. regards, 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

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

OOT block swig problem (maybe qmake vs cmake)

ACQ(const Prm _p);}; // Acq#endif // ACQ_H* acq.cpp *#include "acq.h"#include "nco.h"#include "prm.h"#include #include ACQ::ACQ(const Prm _p) : p(u_p){}* The versions: *** cmake: 3.15.1 *** gnuradio: 3.7.13.4 *** ubuntu: 16.04 and IT++ is quite OK in my other OOT blocks. (and of course here) I really appreciate it, regards Ali G. Dezfuli

bug report

Hi all, I think the block "Chunks to Symbols" needs to have "Endianness" as a parameter because it defaults "LSB first" which is not generally true. For example, in Simulink, we have a block named "bit to integer" to handle the endianness before rectangular QAM which defaults to MSB first that

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

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

Dear friends, I have a problem installing gr-inspector. I am using ubuntu 18.04 having gnuradio v3.7.9.3 installed (removing all the updates and installed just this) pip version is : $ pip --version "pip 19.2.3 from /usr/local/lib/python2.7/dist-packages/pip (python 2.7)" >>> tf.__version__

[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 mailing list