Just a comment that I've had a lot of difficulty contributing to the
osmocom rtlsdr driver. I've had multiple patches that addressed
instabilities go unresponded to on their mailing list. After some years
they said they had a new maintainer but that it was my responsibility to
find my patches and
brary that the
the osmocom gnuradio blocks do. There is only one rtl-sdr driver that I am
aware of, but hopefully the maintenance situation has improved since the
years of having diverse forks referenced on blogs and youtube videos, each
supporting a different set of features.
> On Fri, Mar 26,
On Sat, Apr 3, 2021, 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. How can I do this in GNU Radio? I h
Hi,
I am just learning gnuradio and I find it takes a lot of time to look
up the blocks on the wiki.
The attached python script, if run in the gnuradio source tree root,
will update all the blocks' local documentation from the wiki.
It uses requests, pyyaml, and mwparserfromhell.
It makes a _lo
hi josh,
i'm not a maintainer, but I wanted to comment that i've been looking for
features like this for years and the contribution is welcome to see. most
open source projects accept work if it's presented in the ways they're used
to.
i've also found the developer of soapy to be relatively resp
Hi list, I just subscribed,
I'm very interested in SDR but don't have very much relevant academic
training. I was wondering if anybody knew of a place for people to
exchange their learning on things like this, similar to wikipedia or
wikiversity, but with an eye towards sdr: or any major
wikipedi
Probably the best way to do this is to get your phone to either tell you
the ARFCN it's on (and not many do), or the cell ID. If you get a cell ID,
you'd need to scan the downlink frequencies for that particular cell ID.
Once you find the downlink frequency, the uplink should be a constant
offset a
There are also far-field RFID systems, such as the EPC Gen2 standard that
was intended to replace product barcodes but has found itself in other
applications such as toll road tags and DHS-compliant IDs.
One potential problem with trying to detect these systems with GNU Radio is
that the tags them
Hi all,
i want to transmitt a video stream with gnuradio and usrps. There are some
examples on the web and i got it working with vlc.
The problem is, that the playback is quite choppey. This is because the
digital transmission over the usrps has a fixed rate but the encoded video
has a variable r
d I will find a way of send it to you.
>
> I think my problem was different that yours and my solution will not be
> fit, but it may give you some ideas. The key was to bring the payload in a
> PDU message and to have a block that manages the "padding" before entering
> to
ely written to and
passively read from. And i would need it the other way.
BR,
Anselm
2016-03-17 9:17 GMT+01:00 Nikos Balkanas :
> Hi,
>
> Have you tried using a FIFO block in your flow? There a few around and it
> seems to me it would normalize your flow.
>
> BR,
> Nikos
&
The volk issue is old:
https://gnuradio.org/redmine/issues/722
On Sun, Mar 27, 2016 at 6:21 PM, Alexander Levedahl <
alexanderleved...@gmail.com> wrote:
> Two questions:
> 1) Have you been able to run any that do not require a GUI? There error
> appears to be related to a GUI.
> 2) What happens
I believe so; see gnuradio/gr-digital/python/digital/generic_mod_demod.py:
...
# symbol timing recovery with RRC data filter
taps = filter.firdes.root_raised_cosine(nfilts,
nfilts*self._samples_per_symbol,
1.0, self._excess_bw, ntaps)
However, when I change the filter it uses, it breaks again.
Any ideas what's going on?
- Karl
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If the packets have a preamble, there's a block called correlate_and_sync
which should do what you want, although it has some issues. See a thread I
started a few days ago about that...
On Thu, Apr 2, 2015 at 3:36 PM, Mike Willis wrote:
> I have an application that needs to decode short bursts o
Has anyone developed a work around for replacing gr.multiple_cc() to work on
ARM devices that have to disable NEON in order to install? I have two lines in
gr.ais that keep giving me overflow.
Thanks ahead of time,
karl
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Discuss-gnuradio mailing
,
but unfortunately it seems to be too much for the RPi.
Thanks
karl
From: trond...@trondeau.com [mailto:trond...@trondeau.com] On Behalf Of Tom
Rondeau
Sent: Thursday, February 14, 2013 10:42 AM
To: Karl Petrow
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Work around for
I am an extreme newb, but I had to install gr-osmocom and rtl_sdr separately
following this recipe:
http://sdr.osmocom.org/trac/wiki/rtl-sdr
But as I said I have 1 week of GNURADIO under my belt so far.
Karl Y Petrow
Maritime Information Systems, Inc.
http://www.maritimeinfosystems.com<h
Behalf Of Tom
Rondeau
Sent: Friday, February 15, 2013 1:09 PM
To: Karl Petrow
Cc: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Work around for gr.multiply_cc( ) for non NEON
enabled ARM devices
On Fri, Feb 15, 2013 at 12:21 PM, Karl Petrow
mailto:kpet...@maritimeinfosystems.com>>
I got it working somewhat on a Raspberry using this recipe:
http://k1gto.blogspot.com/2012/09/compiling-gnuradio-on-raspberry-pi-raspi.html
I was trying to run gr.ais, but kept getting overflow with gr.multiply_cc(),
due to having NEON disabled.
Karl Y Petrow
Maritime Information Systems
Does anyone have a link to any recent progress made on this? I recently saw
this lecture:
http://diydrones.com/profiles/blogs/detect-airplaneuav-using
and this project
http://comsec.com/gnuradio-project-2006.html
but nothing in the past 7 years??
Thanks
Karl Y Petrow
Maritime Information
on
the server side.
Thanks for the help,
Karl Petrow
-Original Message-
From: Johnathan Corgan [mailto:johnat...@corganlabs.com]
Sent: Tuesday, March 26, 2013 9:53 AM
To: Karl Petrow
Cc: Discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] GR-Radar, Passive Radar
On Mon, Mar 2
You need to use this line:
sudo make install-udev-rules
look at this link:
http://sdr.osmocom.org/trac/wiki/rtl-sdr
Karl Y Petrow
Maritime Information Systems, Inc.
http://www.maritimeinfosystems.com<http://www.maritimeinfosystems.com/>
kpet...@maritimeinfosystems.com<ma
Hi Anurag,
It's a little unclear whether you mean _gnuradio_ or _gnu in general_. I'm
not a part of gnuradio, but I'm trying out answering your question because
I find it hard to understand and I worry busy people could ignore it.
I quickly searched the gnuradio website to find answers.
The cont
schrieb am Fr., 17. Juli 2020, 18:03:
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