On 24/5/22 14:33, Oğuzhan Gedikli wrote:
Hello, I have USRP B200 and i use GNU Radio for design. I want to
transmit a random signal (whatever, is'nt important for now) I am
using the TX/RX port as transmitter and the RX2 port as receiver. I
can transmit signal without any problems but i can't
I don't think this is a problem at all as long as you have the
fractional resampler which works well in this case, maybe it is just a
matter of documentation
On 28/11/21 21:51, Jeff Long wrote:
This is true. The buffers are allocated when the flowgraph starts, and
buffer size depends on
On 28/11/21 18:21, Jeff Long wrote:
Sure, you can use a single tap. You will end up with aliasing when you
decimate.
Well, yes, I was using it for an educational example to show the effect
of aliasing when doing decimation.
I'm trying to use this configuration in linux. I have been having a lot
of problems trying to do it work. I have read tha maybe gr_osmo is not
compatible with python3, that is better to use bladerRF from a ppa if
ubuntu is 20.04 or later, that better use of pyboms, etc.
So the question is, if
In the GRC Frequency mod block the doc says
analog_frequency_modulator_fc
make(float sensitivity) -> frequency_modulator_fc_sptr
Frequency modulator block.
float input; complex baseband output
Takes a real, baseband signal (x_m[n]) and output a frequency
modulated
Hi.
I tried about four months ago with both, GRC3.7 and GRC 3.8 in ubuntu
18.04 I was not capable of using it with either of them. Did you do it
in 3.7? how? using the GRC and osmo from the repos? or did you built them?
best regards
On 6/3/20 12:37, Jerom Maas - LR wrote:
Hello
ith
gnuradio 3.8
https://github.com/gnuradio/gnuradio/issues/2838
On 14/1/20 11:42, Müller, Marcus (CEL) wrote:
Ah little correction:
On Tue, 2020-01-14 at 10:10 +, Müller, Marcus (CEL) wrote:
Hi Fernando,
GNU Radio itself doesn't interface with the bladeRF directly, at all –
things li
As I reported before I'm trying to use a new bladeRF 2.0 in gnuradio but
it does not work with the bladeRF in the ubuntu repos, so I'm trying to
install gnuradio and gr-osmosdr with pybombs
I'm using ubuntu 19.04. The precess i have followed is the following:
**
*sudo apt install git*
*
When I locate the pointer over some item it appears the contextual help,
but it is not visible because of the colors. how can I change that?
regards
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error.
We find the error was generated by
fernando@andromeda:~> python -c 'import osmosdr'
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib64/python2.7/site-packages/osmosdr/__init__.py", line
26, in
from osmosdr_swig import *
File &qu
> Would you be as nice as to open a bug on
> https://github.com/gnuradio/gnuradio/issues ? I'd like to keep track of
> this.
>
> Best regards,
>
> Marcus
>
>
> On 17.05.2017 14:18, Fernando wrote:
>> On 15/05/17 21:57, Cinaed Simson wrote:
>>> On 05/15/2017
On 15/05/17 21:57, Cinaed Simson wrote:
> On 05/15/2017 09:50 AM, Fernando wrote:
>> On 15/05/17 05:33, Cinaed Simson wrote:
>>> On 05/14/2017 01:06 PM, Fernando wrote:
>>>> With 8 samples/symbol there was aU and CPU at 94% (I have three AMD
>>>> core
Also the connector. I have nottice bad performance qhen using usb 3.0
front case connectors.
regards
On 16/05/17 06:49, Neel Pandeya wrote:
> Hello Cristian:
>
> If you use Ubuntu 16.04.2, the kernel is 4.8, which should be fine.
>
> The specific USB controller is also very important. The
On 15/05/17 05:33, Cinaed Simson wrote:
On 05/14/2017 01:06 PM, Fernando wrote:
With 8 samples/symbol there was aU and CPU at 94% (I have three AMD cores> I
have reduced it to 2 s/s as suggested Cinaed, then aU dissapear and
CPU is at 70%, sound is a little better but still intermittent.
F
(everything else disabled) it plays fine
regards
On 12/05/17 22:51, Ben Hilburn wrote:
Hi Fernando -
Are there are errors / warnings / printouts happening in your GRC log
window or in your terminal? Do you see `aU` getting printed, by chance?
Also, just to be certain, your wavefile
blocks_wavfile_source
alias
comment
affinity
_enabled
True
file
/home/fernando/documentos/instituto/me/radio/practicas/PR5/materiales/sorprendente.wav
_coordinate
similar to debian, I have installed
gnuradio from the packet manager
>
> And where did you get the gnuradio you installed?
>
> In any case type
>
> which gnuradio-config-info
>
> and
>
>gnuradio-config-info --prefix --sysconfdir --enabled-components
> -
fernando@andromeda:~> python2.7 -c "import os;
print(os.environ.get('PYTHONPATH', ''))"
fernando@andromeda:~> python --version
Python 2.7.12
fernando@andromeda:~>
fernando@andromeda:~> export PYTHONPATH="/usr/lib64/python2.7/site-packages"
fernando@andromeda:~
On 09/05/17 07:02, Cinaed Simson wrote:
> On 05/08/2017 03:44 PM, Fernando wrote:
>> My GRC crashes when I place a osmocom source and osmocon sink.
>>
>> Doing some research I have found that is a python problem with _osmosdr_swig
>>
>> fernando@andromeda:~>
My GRC crashes when I place a osmocom source and osmocon sink.
Doing some research I have found that is a python problem with _osmosdr_swig
fernando@andromeda:~> python -c 'import osmosdr' Traceback (most recent
call last): File "", line 1, inFile
"/usr/lib64/pytho
play the diagram), GRC
crash.
When I open it again this is the log:
fernando@andromeda:~> gnuradio-companion
Warning: restarting the docstring loader (crashed while loading
'osmosdr_sink')
Warning: restarting the docstring loader (crashed while loading
'osmosdr_source')
/usr/lib64/python2.7/s
Is it possible to change the "sheet size" in GRC?
I'm working on a big diagram and it does not fit well.
regards
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I'm modulating/demodulating a wide band FM signal and I observe that
high frequencies are highly attenuated.
This is the diagram
And this is the spectrum
High frequencies are attenuated more than 40dB over low frequencies.
It seems to happen for frequencies above 20Khz.
Changing max
spectrum.
regards
El 26/04/17 a las 09:52, Marcus Müller escribió:
>
> Hey Fernando,
>
> not quite sure I get what you need; I'd say the Amplitude Spectrum
> you'd be looking for is
>
> $$A_{|\cdot|}[f]=|X[f]| = \left\lvert\sum_{n=0}^{N-1} x[n]\cdot
> e
as possitive and in the QT time sink it is very difficult to see
the signal as it is a complex one.
regards
El 25/04/17 a las 10:57, Jinyang Lee escribió:
> Hello Fernando,
>
> I think the QT GUI time sink displays the relationship between time
> and amplitude. You can see the si
Hi.
Is there a way of visualizing ampitude spectrum (with + and - signals)
instead of power spectrum?
regards
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I am trying add a phase-shift to my signal via the use of a multiply block, but
I have not been able to find the correct inputs for the block. What syntax
should I use to input an exponential or a complex cosine/sine combination for
the multiplication?
Best,
Fernando
not need to be
phase-synchronized.
Best,
Fernando Trejo
From: Discuss-gnuradio
<discuss-gnuradio-bounces+f.trejotrevino=jacobs-university...@gnu.org> on
behalf of Marcus Müller <marcus.muel...@ettus.com>
Sent: Wednesday, March 22, 2017 7:02:35 PM
I would like to receive this
transmitted signal and check if the phase matches the one that was transmitted.
This is why I need a measuring method.
Regards,
Fernando
From: Discuss-gnuradio
<discuss-gnuradio-bounces+f.trejotrevino=jacobs-university...@gnu.
open to other
solutions. Any suggestions?
Best,
Fernando
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Hi!
I'm tryng modulation/demodulation in WFBF (I've tried too NBFM with same
result)
I'm using a HackRF one to transmit and a NI-USRP2920 to receive.
I am using the attached block diagram
If I bypass both osmocom, connexting TX signal to RX, the system works
fine, but when I do TX and RX
s
El 01/03/17 a las 16:28, Marcus Müller escribió:
> Yes, you can kill any receiver by overloading the RF amplifiers.
>
> Best regards,
>
> Marcus
>
>
> On 03/01/2017 04:10 PM, Fernando Peral wrote:
>> you mean you can break the hackRF if you use much gain?
>
you mean you can break the hackRF if you use much gain?
El 28/02/17 a las 22:57, Cinaed Simson escribió:
> Also, you should get to know your HackRF so you don't blow the RF amplifiers
>
>http://www.greatscottgadgets.com/sdr
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I think that since in the scenario you are describing there is all
virtual there is no ADC but the round aproximation from the cos(t)
function to a fixed number of bits used to represent the number with a
float the computer is using, so the noise you can see in the FFT is the
is indeed a
a
> M: 8337942928
>
> On Tue, Feb 28, 2017 at 1:22 AM, Fernando Peral
> <ferna...@samara.com.es <mailto:ferna...@samara.com.es>> wrote:
>
> The problem appears when using the hackrf for TX even if there is
> only one hackrf plugged.
> Osmocon source mak
.
thanks for the help
El 27/02/17 a las 19:38, Chris Kuethe escribió:
> try using the hackrf's serial number (d291f43, 5671743) rather than
> the index (0, 1)
>
> On Sat, Feb 25, 2017 at 5:26 AM, Fernando Peral
> <ferna...@samara.com.es <mailto:ferna...@samara.com.e
Hi!
I have a HackRF. I'm testing it.
It works well receiving in GRC with osmocon source, but when trying to
transmit with osmocon sink I receive an error
FATAL: Failed to open HackRF device (-5) HACKRF_ERROR_NOT_FOUND
It is like if it were a problem of permissions, but it is not, the
I'm buying a new computer and two possible options will be intel
i3-6100 and AMD FX-4300.
Performance using GNU-Radio may be the key to the selection of one or
the other.
I guess the more cores the CPU, the better the performance.
FX-4300 is 4 cores, i3-6100 is only two cores but they say
El 15/02/16 a las 17:44, Landsman, Arik escribió:
> Hi Stephen,
>
> To add a few comments on persistence - the Live USB image doesn't come with
> persistence configured. Two ways to do this, one of them does NOT work on
> Ubuntu 14.04 (fixed on 15.04 as some forums claim):
>
> .
>
>
Hi.
Is there any aproximate date for the final release?
regards
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Hi!
I Installed GNU Radio live on a usb stick and I was changing some
aspects of its configuration.
I like to delete some entries of the boot menu (is to use with my
students at class and I don't one anyone to use "install ubuntu") and i
broke grub2. Now the usb stick does not boot.
I know hot
Hi!
I Installed GNU Radio live on a usb stick and I was changing some
aspects of its configuration.
I like to delete some entries of the boot menu (is to use with my
students at class and I don't one anyone to use "install ubuntu") and i
broke grub2. Now the usb stick does not boot.
I know hot
You can address me by Fernando, it's easier to pronounce ;-)
I'm trying to save audio from the audio source to a file or from a signal
source 1Khz for instance.
I've tryed different things, and different data rate (I've tried 44100 also)
and is always the same eror
Generating: /home/ubuntu
to all the block of
this modules (usrp_sinkusrp_source )
Could you give me some help ?
Thanks!
Regards,
*Fernando L. Rodríguez Brizuela -*
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),
the block still not work because the Gnuradio doesn't catch the file. (with
others file on the same folder it works fine).
Could someone help me? What I have to do?
Thanks !
Regards,
*Fernando L. Rodríguez Brizuela -*
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Everyone (or almost) who writes here is testing different systems, with
different hardware and creating examples.
There are some people who publish their work in their own web pages, git
repositories, etc., and the rest of us are using them (thank to all of
you!!!). But Is there any repository
something like what I'm proposing.
If it does not exist I am willing to participe in the creation of
something like that if there is more people who want to work in it.
regards
El 30/03/14 14:00, Marcus Müller escribió:
Hi Fernando,
there's been CGRAN for eternity now; it was meant to be exactly
Where anybody can easily share one desing, and where you can find
anything you are looking for.
El 30/03/14 16:32, Vanush Vaswani escribió:
https://github.com/argilo/sdr-examples
On Mon, Mar 31, 2014 at 1:20 AM, Fernando Peral
ferna...@samara.com.es mailto:ferna...@samara.com.es wrote:
I
1800 Rx MIMO B
Converter Rate:
6400
Uses Quadrature:
True
Gain Range (min, max, step size):
0.0
90.0
0.050007451
Freq Range (min, max, step size):
15.0
21.0
1
Does anyone have a clue of what could cause this?
Thanks in advance for any answer,
Fernando Rodrigues
1800 Rx MIMO B
Converter Rate:
6400
Uses Quadrature:
True
Gain Range (min, max, step size):
0.0
90.0
0.050007451
Freq Range (min, max, step size):
15.0
21.0
1
Does anyone have a clue of what could cause this?
Thanks in advance for any answer,
Fernando Rodrigues
Hello,
I've ubuntu 9.10 karmic koala 64bit and the latest gnu radio installed on a
hp dv7-1020us and I get the same error that Fabrizio was getting.
When I try to run the usrp_benchmark_usb.py I get the can't open usrp
error.
f...@frsn-nb:/usr/local/share/gnuradio/examples/usrp$
you should declare the variable out of the threads and use something similar
to a lock. because you're using threads, if you don't use locks, a operation
of read/write could lead to mistaken results.
Fernando Rodrigues
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for any help.
Fernando
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