-correction-with-gnu-radio/
> > was integrated. A true doppler correction would need to also
> > resample, but the time varying frequency correction may be enough for
> > your use case.
> >
> > Tim
> >
> > On Thu, Jul 27, 2023 at 1:19 PM Jose Ruvalcaba
&
Hello,
I am trying to simulate an accurate representation of Doppler Shift in a
channel and I was told that to do this I would have to multiply a complex
signal with a cosine and implement a resampler block to simulate the signal
samples that are coming closer or farther away from each other.
My
Where would I set the export
QT_QPA_PLATFORM
Thanks,
Jose Ruvalcaba
On Thu, Nov 24, 2022 at 5:25 PM Cinaed Simson
wrote:
> Hi Jose - I can run your script for hours without any issues on both GR
> 3.8 and 3.10.
>
> Have you tried setting
>
> export QT_QPA_PLATFORM=wayland
>
&
be able to steer me
in the direction to fix it? I am currently running on Ubuntu 22.04 and am
running GNU RADIO 3.10.1.1 which I installed using sudo apt-get install.
I've also attached the flowgraph I am talking about.
Thanks,
Jose Ruvalcaba
func_probe_test.grc
Description: Binary data
($variable_name)
However, I was wondering, Do I need to add any other "callback" commands to
my python file? Or is this callback line in the XML file enough in order to
have variables change in my python OOT Block. Any tips would be appreciate.
Thank you,
Jose Ruvalcaba
anyone know
how to downgrade UHD using PyBombs?
On Tue, May 7, 2019 at 11:36 AM Marcus D. Leech
wrote:
> On 05/07/2019 02:30 PM, Jose Ruvalcaba wrote:
>
> Yes I do. However, I've noticed that when I reboot the radio, the issue
> does not appear. However, after I switch to anoth
Ettus
Research.
Thanks,
Jose
On Tue, May 7, 2019 at 8:07 AM Marcus D. Leech
wrote:
> On 05/07/2019 02:23 AM, Jose Ruvalcaba wrote:
>
> Hello,
>
> I recently installed GNU Radio 3.7.13.4 with UHD 3.14 ,using PyBOMBS, and
> tried to use my X310 radio with it. It asked me to upd
Hello,
I recently installed GNU Radio 3.7.13.4 with UHD 3.14 ,using PyBOMBS, and
tried to use my X310 radio with it. It asked me to update its FPGA image,
and after updating it, I began to see an error whenever I tried using the
USRP sink and source block In GNU Radio. The error reads:
*Executing
rk around it by setting
> FLG_FOSPHOR_USE_CLGL_SHARING in lib/fosphor/private.h to 0 as suggested
> here:
>
> https://lists.osmocom.org/pipermail/osmocom-sdr/2017-June/001594.html
>
> Hope it helps.
>
> -Jeppe
>
> On Wed, Aug 1, 2018 at 9:04 PM, Jose Ruvalcaba wrote:
Hello,
I am experiencing an issue when running gr-fosphor in GNU Radio. I am
getting the following issue when ever I run my flowgraph:
*[+] Selected device: GeForce GTX 1080[!] CL Error (-5,
/home/ruvalcab/prefix/src/gr-fosphor/lib/fosphor/cl.c:480): Unable to share
spectrum VBO into OpenCL cont
I encountered this issue but seemed to fix it by updating my gcc compiler
from 5.4.0 to 6.4. However, after I did this I encountered another problem
with the uhd drivers which I opened on a separate thread :( . I got the
instructions on how to update the gcc compiler from the following youtube
vide
x27;s happening here
> though. What OS are you using? Not sure how PyBombs does things under the
> covers :(
>
> On Tue, Jun 5, 2018 at 2:34 PM Jose Ruvalcaba wrote:
>
>> Hello,
>>
>> I am trying to install Gnuradio with PyBombs and I am encountering the
>&
Hello,
I am trying to install Gnuradio with PyBombs and I am encountering the
following issue when I reach to the UHD part:
Cloning into 'uhd'...
remote: Counting objects: 123, done.
remote: Total 123 (delta 23), reused 23 (delta 23), pack-reused 100
Receiving objects: 100% (123/123), 39.75 KiB |
?
Is there a known way to be able to transmit (or receive) from both channels
in a B210 using different frequencies ?
Thanks again,
Jose
On Wed, Jul 26, 2017 at 6:38 PM, Marcus D. Leech wrote:
> On 07/20/2017 02:23 AM, Jose Ruvalcaba wrote:
>
> Hello,
>
> I'm currently having i
ss you need
> a fair comparison between different signals or such.
>
> Maybe you'd want to explain why you want to do that?
>
> Best regards,
>
> Marcus
>
> On 07/16/2017 07:23 AM, Jose Ruvalcaba wrote:
>
> Hello,
>
> This may seem like a really simple quest
Hello,
This may seem like a really simple question, but If I wanted to attenuate
my signal coming out from a USRP source block in GRC, say by 80 dB,, how
would I go ahead and do that? Would I just add a multiply constant block
after my USRP source block to scale down the incoming signal's amplitud
UHD
and GNU radio by using *pybombs remove uhd* and *pybombs remove gnuradio*
and it seems to remove. However, when I search for UHD, or use sudo find /
-name libuhd*.so* my UBUNTU machine still shows that have UHD installed. My
question is how do I completely clean or rem
se the grc flowgraph.
Is this always true?
Anyways thanks for the help again.
On Wed, Oct 19, 2016 at 2:17 PM, Marcus D. Leech wrote:
> On 10/19/2016 03:56 PM, Jose Ruvalcaba wrote:
>
> I built the gr-osmosdr using the cmake instructions:
>
> git clone git://git.osmocom.org/gr-os
having the UHD compiled into my gr-osmosdr, can you shine
light on how I can go about doing this?
Thanks,
Jose
On Tue, Oct 18, 2016 at 5:57 PM, Marcus D. Leech wrote:
> On 10/18/2016 07:36 PM, Jose Ruvalcaba wrote:
>
> Hello,
>
> I installed and tried to run the simple_ra_rec
Hello,
I installed and tried to run the simple_ra_receiver flowgraph using a USRP
N210 and was shown the following error message:
*aster$ simple_raUsing Volk machine: avx_64_mmx_orcgr-osmosdr
v0.1.4-75-gae686c46 (0.1.5git) gnuradio 3.7.9built-in source types: file
fcd rtl_tcp rfsp
Hello all,
I was wondering if in order to use the DVB-S2 BCH and LDPC encoder I
would have to use the header, scrambler, DVB-S2X modulator and physical
layer frame blocks in my Tx side. In other words, can I use the FEC
encoders from DVB-S2 stand alone? Also, is the data coming out from the
DVB
check matrix
constructions such as with repeat accumulate codes?
Thanks,
Jose
On Mon, Apr 4, 2016 at 10:20 PM, Martin Braun wrote:
> Jose,
>
> we have a *lot* of smart FEC stuff, including LDPC codes, in gr-fec. I
> suggest you take a look there.
>
> Cheers,
> M
>
> O
Hello,
I am new to GNU radio and to SDR's and I am trying to implement a DVB-S2
LDPC decoder block that can be used with the LDPC DVB-S2 encoder available
in GNU radio. I have been able to write an LDPC decoder which uses a 16,200
long parity check matrix used only for a DVB-S2 short frame, rate
inking of.
>> You can try reinstalling gr-polar as a "might work" thing, but without
>> knowing the reason for the initial problem, it is only guessing.
>>
>> On Tue, Mar 1, 2016 at 1:20 PM, Jose Ruvalcaba
>> wrote:
>>
>>> Hi All,
>>>
>&
Hello All,
I was wondering if anyone has seen this issue I am encountering when trying
to run polar_code_example.grc. Whenever I open the file my POLAR code
configurator block shows:
Value "polar.load_frozen_bits_info(True, "polar.CHANNEL_TYPE_BEC",
block_size, n_info_bits, 0.0, 32)" cannot be ev
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