You could give SoapyHackRF [1] a try. From the discussions [2-4] it looks
like the Tx/Rx switching is fixed, allowing to put a source and sink block
simultaneously in a flowgraph. The device can switch to RX mode once the
burst transmission is done. I am not sure about the Tx/Rx switching timing
i
ftpac
>
> k\__init__.py", line 95, in
>
> from .basic import *
>
> File "C:\Program Files\GNURadio-3.7\gr-python27\Lib\site-packages\
> scipy\fftpac
>
> k\basic.py", line 12, in
>
> from . import _fftpack
>
> ImportError: DLL load faile
Hi Swartz,
I have never tested gr_filter_design in windows. That said, can you please
test whether the following imports work in your windows python shell / as a
standalone python script.
>>import scipy
>>from scipy import fftpack, poly1d, signal
Regards
Sreeraj Rajendran
On Wed, Jan 25, 2017 a
ystem
-Sreeraj
>
>
> Thanks
>
> Jacqueline
>
>
>
> *From:* sreeraj r [mailto:rsree...@gmail.com]
> *Sent:* 13 January 2017 14:35
> *To:* Jacqueline.Walker
> *Cc:* Martin Braun; discuss-gnuradio@gnu.org
>
> *Subject:* Re: [Discuss-gnuradio] guided t
Hi Jacqueline,
I tested your files (if_else_mod.py and mod_org.py) on Archlinux with
gnuradio versions 3.7.10.1-3 and 3.7.10.1-1, but couldn't reproduce the
error. Can you make sure that all your libs are up to date by running
"pacman -Syu".
-Sreeraj
On Fri, Jan 13, 2017 at 12:01 PM, Jacquelin
Hi Sumit,
You could also pad enough zeros to your .bin file or use Bastian's gr-foo
[1] blocks to get the job done (burst_tagger + packet_pad?).
[1] https://github.com/bastibl/gr-foo
Regards
Sreeraj Rajendran
On Tue, Sep 13, 2016 at 5:45 PM, Marcus Müller
wrote:
> Hi Sumit,
>
> what about usi
Hi Rob,
IMO the easiest way to setup GNURadio on Rpi is to use Archlinux [1]. You
could find platform specific installation instructions on the website
itself. Rpi-1 is underpowered and make sure that you are not running any
GUIs while running a flowgraph. Create your flowgraphs on a local machin
Hi Sebastian,
Good proposal. Really liked the radio service database idea too.
It would be nice to have a radio info tab in the GUI, which provide details
about plausible transmission type based on the frequency allocation of the
region (e.g [1]).
Some comments on your proposal
Block diagram (fi
Hi Pragnesh,
Nice proposal. A few extra suggestions
Visualization
It would be nice to put a few pointers to show how you are planning to
integrate the GUI
- For example, integrate it with the GUI in gr-specest
- Use other libraries like pyqtgraph[1] (see crosshair example)
Schedule
I personally
Hi Christopher,
On Tue, Mar 8, 2016 at 3:14 PM, Richardson, Christopher (richarc2) <
c.richard...@lancaster.ac.uk> wrote:
> Hi everyone,
>
> I'm very interested in working on the Signal Intelligence (gr-sigint)
> project for the Google Summer of Code.
>
> I'm currently a PhD student at Lancaster
Hi all,
This is a gentle reminder for the DySPAN 5G spectrum challenge [1] which is
organized by IEEE. The primary user and database code is already available
on the webpage [2]. For more details and queries please subscribe to the
Spectrum Challenge mailing list [1]. It will be fun to work on i
Hi,
You can also look into Tom's blog on channelizers [1]. Some of the grc
files in the blog might not work out of the box (especially those ones with
QT-GUI frequency sink + bus ports). You can simply toggle the busports and
connect it properly and make it work.
[1] http://www.trondeau.com/examp
Farida,
Nice work.
I believe your students will also be interested in IEEE spectrum sharing
challenge [1].
[1] http://dyspan2015.ieee-dyspan.org/content/5g-spectrum-sharing-challenge
--
Regards
Sreeraj Rajendran
On Wed, Feb 11, 2015 at 9:16 PM, Fraida Fund wrote:
>
> Hi all,
>
> I was a part
On Thu, Feb 5, 2015 at 11:30 AM, Jorge Gallo wrote:
> Hi,
>
> I have a python flowgraph with several blocks.
>
> One of them is a "filter.single_pole_iir_filter_ff" which does a moving
> average. The last block is a Sink to file block.
>
> I scan several bands, 10MHz each, in order to get the pow
On Sat, Jan 3, 2015 at 8:39 PM, Luis Colunga wrote:
> Hi Dan,
>
> Thanks for the response, but it seems like burst tagger would not work
> in this case because I am working with audio. What I want is when
> power squelch is triggered demod a NFM signal and then save it to a
> wav file with the ti
On Wed, Dec 17, 2014 at 3:44 PM, Rui Zou wrote:
>
> Hi, Marcus,
> I read the doc and examples you recommended, but I still don't understand
> fully how to implement my wok.
> Sorry for my previous omission that the first line of my flow graph design
> is:
> usrp_source -> ptk_dtc -> grab_time_tag
Hi,
Please go through the tutorial [1].
Short version,
1. Use one 5in-1out selector block
2. Use on "Function Probe" block
3. Set the "Poll Rate" based on your delay
4. Generate python file using "Generate flowgraph" button
5. Set your selector's input index in the function probe
Sample functio
Hi Jason,
Please go through this,
http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsCoreConcepts#Sampling-rates
Try
1. Varying USRP sample rate and observe the output using FFT sink
2. In the flowgraph use an interpolator (rational resampler) just before
your USRP sink, vary the inter
You can refer "uhd_burst_detector.py" in "gnuradio/examples/tags" as a
starting point.
Regards
Sreeraj Rajendran
On Thu, Nov 13, 2014 at 8:46 PM, Staffan wrote:
> Hello all,
>
> Many, many, thanks for the suggestions! I just tried the example by Lou -
> very good way to update the filename - di
qt4 4.8.6, python2-pyqt4 4.11.2, qwt 6.1.0 and python2-numpy 1.9.0 on
Archlinux.
On Mon, Oct 27, 2014 at 7:09 PM, Tom Rondeau wrote:
> On Sun, Oct 26, 2014 at 5:10 AM, sreeraj r wrote:
>
>> Hi,
>>
>> I just noticed that "gr_filter_design" is throwing numpy
Hi,
I just noticed that "gr_filter_design" is throwing numpy error and fails to
start (with latest gnuradio-git). I could atleast find one more guy
complaining about this (
http://stackoverflow.com/questions/25882030/gnuradio-filter-design-tool/26142876#26142876
).
The issue in my case was with
Eagerly waiting for the videos.
---
Regards
Sreeraj Rajendran
From: Tom Rondeau
To: Dan CaJacob
Cc: Discuss-gnuradio@gnu.org
Sent: Thursday, 13 September 2012 6:24 AM
Subject: Re: [Discuss-gnuradio] GR Conference Recording?
On Sat, Sep 8, 2012 at 1
>Question - 1
>
>I was working with the UHD version of spectrum sensing code.
>
>I have USRP2 with me. I learnt that USRP2 can achieve 50MHz of RF bandwidth
>with 8 bit samples and 25MHz of RF bandwidth with 16 bit samples.
>
>I wanted to know how does this information translates while passing m
>I am trying to emulate an 8th-order Butterworth low-pass filter using
>gr.iir_filter_ffd in GNU Radio. I cannot seem to implement an IIR filter
>with such a steep roll-off in gr_filter_design. The filter characteristic
>I want are as follows:
>Sample Rate: 128,000 sps
>Cut-off (3 dB) frequency
facing that issue.
regards
Sreeraj
From: sreeraj r
To: Mac A. Cody ; "discuss-gnuradio@gnu.org"
Sent: Thursday, 9 August 2012 10:27 AM
Subject: Re: [Discuss-gnuradio] GSoC: Filter Design tool update
Hi Mac,
Could you please specify your version
Hi Mac,
Could you please specify your version of pyqt. I have tested the tool with
version 4.9.1. The error has nothing to do with gnuradio version.
---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj
From: Mac A. Cody
To: discuss-gnuradio@gnu.o
This might be happening because "gr.file_sink" is not closing the passed file
handle until its destructed. I checked "gr_file_sink_base"'s source and various
functions like open, close and unbuffered writes are supported. Try playing
around with these(I haven't used these things yet).
http://ww
Hi,
Previous versions of gnuradio had
one "multi_file.py" example which dumps data from two basic_rx daughter
boards. You can get that one and change the driver to uhd.
Easier method is the one that Martin mentioned, use GRC and fill "Subdev Spec"
with your spec.
-Sreeraj
___
Try using "uhd_rx_cfile".
~Sreeraj
From: Muhammad JUNAID
To: "discuss-gnuradio-requ...@gnu.org"
Cc: "discuss-gnuradio@gnu.org"
Sent: Wednesday, 1 August 2012 11:35 PM
Subject: [Discuss-gnuradio] Fw: Is GNU Radio 3.6. have file like
usrp2_rx_cfile.py
I
>I didnt mean to imply that there was some kind of formal discussion tool
>like a forum thread. I was just referring to these emails:
>
>https://lists.gnu.org/archive/html/discuss-gnuradio/2012-05/msg00142.html
>
>https://lists.gnu.org/archive/html/discuss-gnuradio/2012-05/msg00146.html
>I think
> In next few weeks I will be adding some special filters like
> half-band filter to the design tool, then will proceed with
> integration of gr_filter_design to GRC and will try to add QA tests
> for filter design routines wherever they are missing.
>
>Need any help with the GRC integration? I
Hi all,
A brief update on the new features added to the filter design tool[1]
--IIR Filter Design (Scipy Based)
-Butterworth
-Elliptic
-Chebyshev-1
-Chebyshev-2
-Bessel
--Pole-zero plot now supports addition, deletion of poles/zeros with conjugate
support.
A small video showing s
Its not that hard to find.http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioCompanion#Adding-Custom-Blocks ---RegardsSreeraj Rajendranhttp://home.iitb.ac.in/~rsreerajFrom: "umer.rabb...@bt.com" To: discuss-gnuradio@gnu.org Sent: Wednesday, 4 July 2012 7:52 PM Subject: [Discuss-gn
http://www.ruby-forum.com/topic/1440970
http://www.oz9aec.net/index.php/gnu-radio/gnu-radio-blog/361-simple-dvb-with-gstreamer-and-gnu-radio
https://github.com/csete/gnuradio-dvb
---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj
From: "umer.rabb
lly great! I
>can't wait to see the final version! This will really be a significant
>contribution to the capabilities of GNU Radio, in my opinion.
>
>
>Cheers,
>Ben
>
>
>On Sun, Jun 24, 2012 at 7:05 AM, sreeraj r wrote:
>
>Hi all,
>>During the initial
Hi all,
During the initial phase of SoC, I was concentrating on improving the GUI for
filter designing. A brief list of some of the major features added to the
filter design tool (gr_filter_design) is given below
--Support for multiple views (grid and old tabbed view)
--Stop-band attenuation co
Hi Sreenath,
In the case of BPSK the costas loop is properly locked when the quadrature
component of the signal is close to zero ( ie lpf[data * cos
(2*pi*f_c*t)*sin(2*pi*f_c*t)] = 0). I am not sure how you will implement this
in GRC as you have to call 'advance_loop' in the plls (inherited fro
Hi,
A gr-sounder application is available in gnuradio till version 3.4.x (in old
archives). You can check those fpga code along with sounder.py which might be
helpful.
---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj
From: sravya reddy
To:
Hi all,
I am currently extending gnuradio filter design tools and is planning to
integrate gr_filter_design to GRC so that users can import filter specs
directly. I went through the gui code and tried some examples by
patching /gnuradio/grc/gui/PropsDialog.py.
Please watch a sample recording
Hi all,
I
am Sreeraj and I am currently doing masters in Communication and Signal
Processing at IIT Bombay, India. First of all thank you all for
accepting my proposal for improving filter design components in GNU
Radio. I have been using GNU Radio for quite a while and I am very happy
to con
Just a gentle reminder if any mentor has missed this one.
http://lists.gnu.org/archive/html/summer-of-code/2012-04/msg00079.htm
Sreeraj R
IIT Bombay
http://home.iitb.ac.in/~rsreeraj
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https
Hope this also helps
http://www.ruby-forum.com/topic/169964#new
If you are building a temepest/van eck phreaker, I like to join too :)
Regards
Sreeraj R
http://conzole.net/sree_blog/
From: Anand Padmanabha Iyer
To: discuss-gnuradio@gnu.org
Sent: Tue, 6 April
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