Dear Rachida,
in order to do that, use the "complex to float" and "float to complex"
blocks and connect the re output to the im input and the im output to
the re input.
Yours
Martin
On 13.12.21 16:31, Rachida SAROUI wrote:
Thank you for responding, but what I meant by invert is swapping the
Dear Zen Chen,
to subscribe to the mailing list you need to follow this link:
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
I think the account on the GNURadio website is for editing the Wiki etc.
You are sampling your signal at 10 MSamples per second. Since you use a
complex signal
Dear Wei,
which GNURadio version are you using?
On 3.9 you need to update the python bindings for your block (assuming
you have a python flowgraph).
Before 3.8 you need to make sure that the SWIG bindings that GNURadio
generates are updated (which should happen automatically, but for me
th
Hi,
in case you don't have VS code, you can also run GDB directly
https://wiki.gnuradio.org/index.php/TutorialsDebugging#Tutorial:_Using_gdb_with_Pythonic_GR_applications
Yours
Martin
On 03/08/2021 15:48, Josh Morman wrote:
Hello!
Even though GNU Radio has python bindings with swig or pybi
eorge
On Tue, Jul 6, 2021 at 1:04 AM Martin Luelf <mailto:m...@mluelf.de>> wrote:
Dear George,
what specifically does not work with your test? Any error messages, or
is it not producing the result you are expecting. And if so, what is
your block input, what is the output
Dear George,
what specifically does not work with your test? Any error messages, or
is it not producing the result you are expecting. And if so, what is
your block input, what is the output and what output are you expecting?
Keep in mind that the forecast method tells the scheduler how much i
Hi Shumin,
netcat (nc) uses TCP by default, but your Socket PDU is set to UDP. So
you are sending and listening to two different sockets.
There are two ways to fix that (but don't apply both at the same time or
it won't work again):
1. Switch the PDU Socket type to TCP Server (like it is done
Dear list,
I have a custom frame sync block that takes a stream of complex samples
as inputs (output signature is 0,0) and outputs PDU messages if frames
were found. When the upstream block is done I would still like to send
out a few messages (flushing an internal buffer), before shutting dow
put_items[0]; i++)", can I assume the
Gnuradio parameter ninput_items[0] is equal to 100 and each function call?
Thanks for the help.
Best Regards,
George
On Sun, Sep 13, 2020 at 2:51 AM Martin Luelf <mailto:m...@mluelf.de>> wrote:
Hi George,
noutput_items is
nks very much for the help.
Regards,
George
On Thu, Sep 10, 2020 at 12:06 AM Martin Luelf <mailto:m...@mluelf.de>> wrote:
Dear George,
this also caused me a lot of headache when I started with GNURadio, so
here is what I learned about it.
Let's start with the fore
Dear George,
this also caused me a lot of headache when I started with GNURadio, so
here is what I learned about it.
Let's start with the forecast method. This tells GNURadio how many input
samples you need on each input stream to generate the requested number
of output items. Usually GNURad
Hi,
I just updated my Kubuntu today without thinking about GNURadio (and due
to my OOT not being ported to 3.8 yet I am still stuck on 3.7). I still
have python2 running like a charm. But I could not get the QT bindings
running, since my KDE is using QT5 and trying to install Qt4 looks like
i
0 input samples (in total, might be over different calls to work)
see 10, 14 or 15 unique (as in not counting them twice) symbols?
Yours
Martin
From the example
Best regards,
Marcus
On 24.03.20 10:33, Martin Luelf wrote:
Hi everybody,
I stumbled over a strange behavior while writing unittests
Hi everybody,
I stumbled over a strange behavior while writing unittests for a frame
synchronization block.
The MPSK SNR Estimation block from GNURadio will output a complex zero
sample before outputting the (shifted by one) input samples.
To show this problem I use a Vector source with a s
On 04.03.2016 18:05, Tom Rondeau wrote:
On Wed, Mar 2, 2016 at 4:28 AM, Martin Luelf <mailto:m...@mluelf.de>> wrote:
Dear mailing list,
we are trying to create a status overview of our receiver by using
the control ports feature. For most of our custom made blocks this
. Do I need to have additional rights to open tickets?
Martin
Now, if someone can get rid of spammers, we wouldn't need to do this...
Tom
On 03/04/16 18:05, Tom Rondeau wrote:
On Wed, Mar 2, 2016 at 4:28 AM, Martin Luelf mailto:m...@mluelf.de>
<mailto:m...@mlue
our example block posted above and what we can do to change this.
Yours sincerely
Martin Luelf
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Hi,
if you encode a continuous stream of data you will not reset your encoder
state in between. However if you want to decode the stream you want to
perform blockwise operation to keep the latency and memory requirements
down. In this cases it makes sense for me to reuse the last state as the
init
> Hi all,
>
> Is there a way to create a uniform PMT vector from python?
>
> I can use, for example, 'pmt.make_c32vector(length, value)' to create
> a vector where each element is 'value' but I don't see a way to modify
> these values from python.
>
> If there isn't, are there any objections to ove
sink/source to set the clocks to system time by
default?
Have a nice weekend.
Yours
Martin Luelf
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2e6 i am getting overflow.
>
> Thanks.
>
>
> On Fri, Mar 22, 2013 at 7:07 PM, Martin Luelf wrote:
>
>> > Hi Martin,
>> >
>> > Can you please show me an example.. How to write connect statement?
>> >
>> > Thanks
>> >
>>
> Hi Martin,
>
> Can you please show me an example.. How to write connect statement?
>
> Thanks
>
>
> On Thu, Mar 21, 2013 at 6:26 PM, Martin Luelf wrote:
>
>> > Hi,
>> > How to simultaneously transmit data to usrp and also store it in a
>> fi
> when i run uhd_fft it runs ok but parallel i cannot run benchmark
> so i must close the uhd_fft to run the benchmark_tx
>
> as message appears that RuntimeError: LookupError: KeyError: No devices
> found for ->
> Empty Device Address
> although while searching i find video running both togoth
> Possibly Ubuntu sets up /usr/local to be regular-user
> writeable, but that would be a horrible security flaw.
At least for my Ubuntu 12.04 /usr/local is owned by root:root with 0755
permissions and everything else would have given me nightmares ;)
Maybe you started the script with sudo, instea
> Hi,
> How to simultaneously transmit data to usrp and also store it in a file.?
> I
> ran two separate flow graphs.But i want to have a sample rate of 25Mhz.Is
> it possible to do it.
>
> I want the same thing in receiver side also(simultaneously detect the
> packet and store the data)
>
> I am
> Hi,
> I think python file means data go downstream without interacting
> with other data stream.And I have seen several example writen in c++ and
> they all contain a gr_top_block which makes them similar to python
> files.Any body have the experience developing in c++?And what you think
> is
> Dear List,
>
> I have another problem with stopping my C++ block. My block receives blobs
> of bytes as messages over the new message passing interface and outputs
> them as a byte stream. At some place I receive an EOF message, set a flag
> and continue to empty my buffer in the work method. Onc
Dear List,
I have another problem with stopping my C++ block. My block receives blobs
of bytes as messages over the new message passing interface and outputs
them as a byte stream. At some place I receive an EOF message, set a flag
and continue to empty my buffer in the work method. Once the buffe
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