thub.com/gnuradio/gr-recipes
- Copy one of the gr-*.lwr files and rename it gr-dl5eu.lwr
- Edit it the file to refer to your repository
- Submit a pull request against the gr-recipes repo with your new file
- Profit!
--M
On Tue, Feb 18, 2025 at 3:47 PM Ralf Gorholt wrote:
Hi Martin,
thank yo
hub.com/gnuradio/gnuradio/blob/main/gr-dtv/lib/dvbt/dvbt_viterbi_decoder_impl.cc
and it seems that GNU Radio's current code does not proceed similarly.
Maybe that's the problem?
best
El jue, 20 feb 2025 a las 5:30, Ralf Gorholt ()
escribió:
Hi Federico,
I can imagine that you a
igration. Maybe
someone on the list can provide me with pointers?
best
Federico
El jue, 6 feb 2025 a las 18:09, Ralf Gorholt ()
escribió:
Dear all,
I have just released a very first version of the source code of my OOT
module gr-dl5eu. This is the first time that I publish my work, so
and thanks for your work!
--M
On Thu, Feb 6, 2025 at 10:09 PM Ralf Gorholt wrote:
Dear all,
I have just released a very first version of the source code of my OOT
module gr-dl5eu. This is the first time that I publish my work, so
please forgive me if it does not correspond
Dear all,
people who use GNU Radio to receive DVB-T signals (I'm talking about
"real reception", not decoding artificially generated data from a file)
may have noticed that sometimes reception stops without a visible
reason. This happens during re-synchronisation and it might be that I
have found
Dear all,
this time I have got a question for the stream tag specialists. I have
stumbled over a very annoying problem that seems to be caused by stream
tags that are not processed as expected for whatever reason.
When I start my DVB-T receiver, it sometimes happens that the reception
"hangs" al
Dear all,
I have just released a very first version of the source code of my OOT
module gr-dl5eu. This is the first time that I publish my work, so
please forgive me if it does not correspond to or if I have not
respected all written or unwritten rules ;-)
This module contains two blocks, dvbt_o
Hi Ryan,
after having tried over and over agin in different environments and
package combinations I finally ended up with a simple solution that
worked. This is what I did:
1) A fresh install of "radioconda-2024.05.29-Windows-x86_64.exe" on my
Windows PC
2) In a radioconda prompt: "conda instal
crete example:
https://github.com/radioconda/gr-radar/tree/conda/.conda
Cheers,
Ryan
On 1/30/25 11:25 AM, Ralf Gorholt wrote:
Hey Marcus,
I know, but I normally prefer asking only questions that I really can't
answer myself and when I find the solution after having asked the
question I can i
OOT modules with repositories containing a
.conda directory with packaging information. See e.g. my gr-radar
repository for a concrete example:
https://github.com/radioconda/gr-radar/tree/conda/.conda
Cheers,
Ryan
On 1/30/25 11:25 AM, Ralf Gorholt wrote:
Hey Marcus,
I know, but I normally prefer askin
g list! That's desirable, and
especially explaining what you did to resolve the issue makes the
mailing list more valuable every day. Thank you!
Best,
Marcus
On 1/28/25 8:32 PM, Ralf Gorholt wrote:
Hi,
once again (sorry for that), please ignore my previous emails.
After having cleaned up
Hi,
once again (sorry for that), please ignore my previous emails.
After having cleaned up everything properly I can build my module
package now. Strange, there must have been something left from my
previous attempts to build the module somewhere in my gnuradio
environment in conda that prevente
Hi,
I have now found the file
"C:\Users\ralf\miniforge3\conda-bld\win-64\gnuradio-dl5eu-0.0.0.20250128.dev+glocal-py312h480494c_0.conda".
Is this what I am looking for? I was expecting a .tar.bz2 file, as
indicated in the conda docs.
When I rename this file to gnuradio-dl5eu.conda and try t
Dear all,
please ignore my email from yesterday concerning this topic. In the
meantime I have manged to compile my module.
What I have done:
- uninstalled radioconda, then I've basically followed the instructions
in the wiki (https://wiki.gnuradio.org/index.php?title=CondaInstall)
- installed c
Hi there and a Happy New Year to all of you before I ask my questions :-)
I think I made a mistake when I sent this email and I hope that it will
not appear twice on the list...
I try to compile an OOT module on my Windows 11 PC. To do this, I have
installed radioconda (I'm a conda newbie and do
Dear all,
in one of my blocks I use VOLK functions for which the compiler prints a
"deprecated" warning message (volk_32fc_s32fc_x2_rotator_32fc and
volk_32fc_s32fc_multiply_32fc).
How do I need to change my code to get rid of them? In the volk
documentation I haven't seen anything but maybe I'v
Dear all,
after a pause of two years I have started to work again on my DVB-T RX
project for GNU Radio.
I have tried to port Federico La Rocca's ISDB-T blocks "OFDM
Synchronization" and "TMCC Decoder" to DVB-T and in principle they seem
to work. When the received signal is stable, I have a stabl
b.com/drmpeg/gr-paint/blob/master/CMakeLists.txt#L78
and
https://github.com/drmpeg/gr-paint/blob/master/lib/CMakeLists.txt#L25
Ron
On 1/29/22 14:24, Ralf Gorholt wrote:
Hello Ron,
d_fft_calculator is (and was in the 3.8 version) an object and not a
pointer. That's why I already use the
Hello all,
I am currently trying to migrate an OOT module that uses an FFT object
internally from GNU Radio version 3.8 to 3.9.
In my .h file I have got this:
//old: gr::fft::fft_complex d_fft_calculator;
gr::fft::fft_complex_fwd d_fft_calculator;
and in the constructor member initial
Dear all,
I have adapted Federicos blocks OFDM Synchronization and TMCC Decoder
(which is a TPS decoder now) to DVB-T. They seem to work correctly but I
am still having troubles getting a stable video.
I have added debug code to the OFDM Synchronization and TPS Decoder
blocks. Whenever I detect
Ralf Gorholt:
Hello Federico,
I have a lot of difficulties to generate the output and the tags for
the blocks that follow my TPS Decoder in the flowgraph. That's why I
had the idea to take a different approach.
The OFDM Synchronization block outputs the payload carriers (1705 in
2K mode) wh
ar as I know, in DVB-T the
carriers at the borders are all set to zero (and perhaps the one in the
middle too). Perhaps this would be too simple to be true :-)
Regards,
Ralf
Am 10.12.2021 um 14:41 schrieb Ralf Gorholt:
Hi Federico,
indeed, the "symbol_index" tag that is normally sen
ng_symbols
Also tell us which Linux distribution do you use and which version? How did you
install gnuradio and the exact version?
Regards,
Vasil
On 10/12/2021 14.51, Ralf Gorholt wrote:
Hi Vasil,
thank you for your message. As I have no experience with GNU Radio and
command line debugging, yo
r possibility is that the Demod Reference Signals block is not
equivalent to our Sync and Channel estimation block, and further
processing is needed for it to be ready for the DVB-T Demap...
best
Federico
El vie, 10 dic 2021 a las 9:55, Ralf Gorholt ()
escribió:
Hi Vasil,
thank you fo
Dear all,
I forgot to mention in me previous mail that the test flowgraph is not
generated by GRC when it terminates with a -11 return code. I have just
noticed that the test.py file is missing.
My GNU Radio version is 3.8.3.1.
Ralf
Dear all,
in order to benefit from Federicos ISDB-T block "OFDM Synchronization"
that performs a frequency and symbol rate correction I am currently
trying to adapt his blocks "OFDM Synchronization" and "TMCC Decoder" in
a way that makes them usable for DVB-T. To check if they work correctly
I ha
e a vector, e.g.,
https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/include/gnuradio/blocks/abs_blk.h
https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/abs_blk_impl.h
https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/abs_blk_impl.cc
On Thu, Dec 2, 2021 at 5:26 AM Ralf
Dear all,
I am quite new to GNU Radio and in order to see how GNU Radio blocks
work I would like to create my own block that (for the moment) just
copies complex data from the input to the output. This works as long as
I copy only one number but not when I want to copy packets of numbers
that
Hello Vasil,
thank you very much, this seems to solve the problem and I now know
where to look the next time :-)
Kind regards,
Ralf
Am 05.05.2021 um 17:08 schrieb Vasil Velichkov:
Hi Ralf,
On 05/05/2021 17.38, Ralf Gorholt wrote:
AttributeError: module 'dl5eu' has no
Dear all,
my problem concerns GNU Radio version 3.8 from the maintenance branch
but it is probably not limited to this version.
I would like to try to adapt the block "ofdm_synchronization" that
Federico Larrocca and others have developed for ISDB-T so that it can be
used for DVB-T. For this pur
https://github.com/gnuradio/gnuradio/pull/3266>
in that it will look wherever the currently installed prefix is, which
can be seen with
gnuradio-config-info --prefix
Make sure your environment variables are sourced correctly - PATH,
PYTHONPATH, LD_LIBRARY_PATH, and LIBRARY_PATH
On Tue, May 4,
Dear all,
on my Linux Mint (Ubuntu) box, I have installed and compiled GNU Radio
3.9 from source (master branch) as described here:
https://wiki.gnuradio.org/index.php/UbuntuInstall#Focal_Fossa_.2820.04.29
and here:
https://wiki.gnuradio.org/index.php/InstallingGR#From_Source
CMAKE_INSTALL_PR
Dear all,
I have spent several hours before my PC trying to get my new OOT block
running, but in vain. Now I have got the impression that one of my
problems is due to a bug in GNU Radio (Companion). I have attached a
working graph (using Qt GUI) to this email. I am not used to report bugs
but in
Dear all,
I am still a GNU Radio beginner and at the moment I try to figure out
how to develop an OOT block for GNU Radio. The tutorial explains how to
do this and I have managed to create my first block. However, when it
comes to the .yml file, I don't find all the information that I need. Is
th
, you'd get the
exact
gr-osmosdr that works with Ubuntu's version of GNU Radio (i.e. 3.8.1.0 as I
thought you've
installed?).
Best regards,
Marcus
On 11.04.21 16:40, Ralf Gorholt wrote:
Hello Marcus,
I had done this before (installed from PPA) but I didn't get a module
that
ieb Marcus Müller:
You have to do none of this,
sudo apt install gr-osmosdr
does everything. And then you're done and can use the OSMOSDR Source or the
RTL-Source
(which are essentially the same).
Cheers,
Marcus
On 11.04.21 13:26, Ralf Gorholt wrote:
Hello Alberto,
you may try this:
Hello Alberto,
you may try this:
git clone git://github.com/osmocom/gr-osmosdr -b gr3.8
That's how I got the sources for GNU Radio 3.8 one or two weeks ago.
Regards,
Ralf
Am 11.04.2021 um 12:35 schrieb alberto.alle...@alice.it:
I follow now this guide:
https://lists.gnu.org/archive/html/dis
Thank you, this would explain why it did not work out of the box. I had
tried multi-cast.
Ralf
Am 04.04.2021 um 20:22 schrieb Marcus D. Leech:
On 04/04/2021 12:22 PM, Ralf Gorholt wrote:
Hello Steven,
when I look at your flow graph, that is exactly what I have tried to
do (use a UDP source
255.42.42:5004 <http://239.255.42.42:5004> -
socat udp4-recv:5004,ip-add-membership=239.255.42.42.0:0.0.0
udp4-sendto:192.168.12.12:5006 <http://192.168.12.12:5006>
now send it back out using multicast address 239.255.99.99
<http://239.255.99.99>: 5008 from gr block -
mc.png
On Sa
ather than a *sink*.
Sent from my iPhone
On Apr 3, 2021, at 3:48 PM, Ralf Gorholt wrote:
Dear all,
instead of using a file source, I would like to get data from a video
stream into GNU Radio. Is this possible?
With VLC, I can connect to the stream using a URL like
udp://230.0.0.10:1234. Ho
Dear all,
instead of using a file source, I would like to get data from a video
stream into GNU Radio. Is this possible?
With VLC, I can connect to the stream using a URL like
udp://230.0.0.10:1234. How can I do this in GNU Radio? I have tried to
use a UDP source with this address and payload si
Dear all,
I have tried to compile Ron Economs’ block gr-dvbtx from
github.com/drmpeg/gr-dvbtx for GNU Radio 3.7.11 and 3.8.2 but I have
noticed several problems.
1) In both environments compilation stops because of an error:
"gr-dvbtx/lib/dvbtx_ofdm_sym_acquisition_impl.cc:54:68: error: cannot
c
Ok, please forget my question.
I have found that I need to specify the Makefile generator which at
least in my case is NMake by default but I need MinGW.
Now I have to install missing software (e.g. boost).
Ralf
Hello Adrian,
here are my answers to your questions:
1) No.
2) I have tried to use it for DVB-T reception with an RTL-SDR stick in
the 70cm band with non standard bandwidths (2 MHz and lower). In
principle, this is possible, but there is a problem in the OFDM symbol
recognition block due to dif
e with the latest
version of GNU Radio 3.7.
Ron
On 3/2/20 03:58, Ralf Gorholt wrote:
Dear all,
please apologize my long email but I cannot explain my problem and
what I have done so far in three words.
I am currently working on a DVB-T receiver project to receive
transmissions on 434 MHz
tead of transmitting over
the air.
Ron
On 3/2/20 12:45, Ralf Gorholt wrote:
Dear Ron,
the fixes seem to be included in the version that I have installed
(3.7.11-10).
I have tried to build your debug block but I get an error message
concerning a type cast:
ralfg@vm5:~/GNU Radio/src/gr-
Please see the examples folder
in gr-isdbt (for instance rx_demo.grc which also includes the gr-dtv
blocks disabled, which should help you understand where to put the
block).
best
El mar., 3 mar. 2020 a las 4:16, Ralf Gorholt (mailto:ralf.gorh...@gmx.de>>) escribió:
Dear Federico,
unfo
and fine frequency corrections). Please see the examples folder in gr-isdbt (for instance rx_demo.grc which also includes the gr-dtv blocks disabled, which should help you understand where to put the block).
best
El mar., 3 mar. 2020 a las 4:16, Ralf Gorholt (<ralf.gorh...@gmx.de>) esc
een the transmitter and receiver. If the difference is large, the block will fail fairly quickly (minutes).
I have a test OFDM acquisition block that prints out the drift. It can be found here:
https://github.com/drmpeg/gr-dvbtx
You may have to go back one commit to make it compile with the l
the latest
version of GNU Radio 3.7.
Ron
On 3/2/20 03:58, Ralf Gorholt wrote:
Dear all,
please apologize my long email but I cannot explain my problem and
what I have done so far in three words.
I am currently working on a DVB-T receiver project to receive
transmissions on 434 MHz with 2 MHz
it fails pretty quickly. I can make it run longer by using the test block and manually adjusting the sample rate of one B210.
Ron
On 3/2/20 05:35, Ralf Gorholt wrote:
Dear Ron,
thank you very much for your quick answer.
I know that Bogdan donated gr-dvbt to GNU radio and I did not
s with
3.8.0.0
Best regards,
Marcus
On Mon, 2020-03-02 at 12:58 +0100, Ralf Gorholt wrote:
> Dear all,
>
> please apologize my long email but I cannot explain my problem and what I have done so far in three words.
>
> I am currently working on a DVB-T receiver project to receive transm
github.com/drmpeg/gr-dvbtx
You may have to go back one commit to make it compile with the latest version of GNU Radio 3.7.
Ron
On 3/2/20 03:58, Ralf Gorholt wrote:
Dear all,
please apologize my long email but I cannot explain my problem and what I have done so far in three words.
I am currentl
Dear all,
please apologize my long email but I cannot explain my problem and what I have done so far in three words.
I am currently working on a DVB-T receiver project to receive transmissions on 434 MHz with 2 MHz bandwidth or less using GNU Radio and an RTL-SDR stick. The flow graph is based o
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