You may want to use the uhd_multi_usrp_blocks. They handle alignment and
synchronization in the driver. They can be used with and without the
MIMO cable. That is to say, that the MIMO cable is transparent to the
operation.
-Josh
On 01/21/2011 06:41 PM, Yong J. Chang wrote:
>
> Hi all,
>
> I'm w
Hi all,
I'm working on implementation of MIMO system based on USRP2+UHD.
I used MIMO method #3, which uses 10Mhz and 1PPS external reference clock.
Also multiple USRP2s are connected to one PC though multiple Gbit Ethernet
connections.
I used multiple uhd_single_usrp_source and uhd_single_usrp_
A very good idea.
I recommend having a Google map where you can place markers (doesn't
have to be your real position). That way we can see where is most
central to host this. I'm in the UK for example.
Incidently,
I've got to be honest. I don't have the depth of knowledge about
radio as most pe
I pulled and updated UHD and I get no more exceptions! Thanks for the
quick fix and have a nice weekend.
Alex
On Sat, Jan 22, 2011 at 1:29 AM, Josh Blum wrote:
> Looks like i removed an interruption disable in the libusb
> implementation (that actually gets called externally by send/recv). Its
>
The configure check is very simple. Just make sure that uhd.pc is in
your PKG_CONFIG_PATH, and that if you look at uhd.pc, the version should
read 002.. If not, then you didnt update or install the
latest uhd, that could be another reason its getting rejected.
-Josh
On 01/21/2011 04:21 PM, Fabian
Looks like i removed an interruption disable in the libusb
implementation (that actually gets called externally by send/recv). Its
restored in the master now.
Do you mind pulling and retrying?
Thanks, -josh
On 01/21/2011 03:49 PM, Alexandru Csete wrote:
> Yes, I use USRP1 with WBX and RFX2400 and
I tried sudo ldconfig several times, no luck there :-(
I think I also checked PKG_CONFIG_PATH and uhd.pc was in the (standard?)
/usr/local/lib/pkgconfig, but right now I'm not sure about this. I will
check this on monday again!
Nevertheless I also did (see also my 3rd message in this thread):
expo
Yes, I use USRP1 with WBX and RFX2400 and it occurs with both daughterboards
Alex
On Sat, Jan 22, 2011 at 12:45 AM, Josh Blum wrote:
> probably a boost thread interrupt, help me narrow this down, are you
> using USRP1? -Josh
>
> On 01/21/2011 03:38 PM, Alexandru Csete wrote:
>> Greetings,
>>
>> U
probably a boost thread interrupt, help me narrow this down, are you
using USRP1? -Josh
On 01/21/2011 03:38 PM, Alexandru Csete wrote:
> Greetings,
>
> Using the latest gnuradio/next v3.3.1git-865-gd429522b and UHD from
> yesterday (commit c14bbffbebb817fc1c622785094268fe68164c60) I get
> thread[
Greetings,
Using the latest gnuradio/next v3.3.1git-865-gd429522b and UHD from
yesterday (commit c14bbffbebb817fc1c622785094268fe68164c60) I get
thread[thread-per-block[0]: ]:
caught unrecognized exception
whenever I call the gr.top_block.unlock(), stop() and maybe also
wait() functions.
I have a
I'm getting unexplained behavior receiving timed samples in continuous
mode with yesterday's merge. First run after boot is fine, but I get
overruns and a bizarre timestamp on subsequent runs. This occurs with the
USRP2 and N210. Running rx_timed_samples with the following diff
Hi,
> Yes, you are correct that the Xilinx DSP kit includes various DSP-type
> "IP" as part of the demo
> package, but unless I'm badly mis-reading things, the cheapest such
> "kit" is $1,995 from Avnet,
> and that doesnt include an ADC or DAC board.
>
> The SP601, which is their cheape
To open
I think what Matt and Ettus Research has done is nothing less than Amazing.
On that note for people who are looking for alternate hardware solutions for
their needs, I think we should heed the suggestions already stated earlier
on the list to build our own solutions.
A bit about myself,
Your comment
"some of the projects that have been cooking over the last several years
will get some exposure"
is not true. Don't be so biased to under estimate work.
I would suggest to go to reputed institute to prove yourself rather honking
your capability!
On Sat, Jan 22, 2011 at 1:13 AM
On 01/21/2011 02:26 PM, Ben Hilburn wrote:
I'm a graduate student at Virginia Tech, and I assure you that GNU
Radio is used _heavily_ in our labs. As I write this, there are
probably 3-4 groups in my vicinity hacking on GNU Radio projects.
People posting projects on CGRAN or posting to the list
Hi Marcus,
I believe you are a good technical starter than to talk about market.
If you are to talk about $20 ADC/DAC i would rather disassociate from your
discussion.
If you would bet on million dollar to donate to GnuRadio, then i will prove
about the pricing you are talking about.
S--
On Fri
A GNU Radio conference is an awesome idea, in my opinion, and I think
the September time-frame is a good one.
I like points 1-5 a lot, and I'll second your idea of some sort of
hacking session. I've heard of companies/communities holding
'hack-a-thons', where a large group of developers marathons
I'm a graduate student at Virginia Tech, and I assure you that GNU
Radio is used _heavily_ in our labs. As I write this, there are
probably 3-4 groups in my vicinity hacking on GNU Radio projects.
People posting projects on CGRAN or posting to the listserve is
probably not an accurate reflection
Yeah, I couldn't find the UHF downlink polarization, I'll try using an OSCAR
(435 MHz) RCP yagi
http://www.poes-weather.com/~patrik/AO-51/OSCAR%20Yagi%20007.jpg
It seems to pass FI at zenit tonite Jan 21st 2350Z
The downlink seems to be 437.270 MHz. I'll use the TVRX, USRP1 and the
usrp_nbfm_rc
Hi Martin/all,
There is need for open source platform for GNURadio. I request people of
concern to understand my view. Am not at all against GNURadio.Its in fact
GNURadio gave birth to open source platform. But what i see is there is a
split as of date against software and hardware. In order to cu
On 01/21/2011 01:54 PM, Patrik Tast wrote:
Hi All,
Is it linear polarized, if so which?
If not, then which circular polarisation?
Patrik
I don't know, but this, from the Nansat-D mission dashboard, is not very
hopeful:
"
STATUS: NanoSail-D ejected on 1/17/11 at approximately 1900 PST. Beac
Hi All,
Is it linear polarized, if so which?
If not, then which circular polarisation?
Patrik
- Original Message -
From: "Marcus D. Leech"
To:
Sent: Friday, January 21, 2011 5:35
Subject: Re: [Discuss-gnuradio] NanoSail-D turns out isn't lost!
On 01/20/2011 08:35 PM, Alexandru Cs
I've been using GNU Radio + USRP as general RF test equipment, and GNU Radio by
itself as a simulation environment for learning about SDR. I'm interested in
the ongoing discussion of alternate RF hardware platforms for use with GNU
Radio. While I'm quite happy with my USRP hardware, I can see pl
Tom,
Can you give a brief sample agenda for the conference? I just want to
know if this is intended to be a forum where all the contributers talk
about GNU Radio or is it going to be tutorials and demos? If it is the
latter I would be interested in attending.
Thanks
Scott
Tom Rondeau wrote
how about a good luck sudo ldconfig? -josh
On 01/21/2011 05:02 AM, Fabian Klaes wrote:
> I first tried make distclean and the installation went fine, but when I
> tried to start the GRC, following window showed up:
> http://tinypic.com/r/dq671d/7 containing the error message "Cannot import
> gnura
Hi
Do you capture the files just connect the USRP to FILE_SINK directly?
On Tue, Jan 18, 2011 at 4:00 AM, dave k wrote:
> One way is to use a throttled file source sink, and use someones capture
> file.
> I have some here you can download online.
> http://kd8eyf.org/capture_files/
>
> Sent fr
On Fri, Jan 21, 2011 at 12:14 PM, Scott Johnston
wrote:
> Tom,
>
> Can you give a brief sample agenda for the conference? I just want to know
> if this is intended to be a forum where all the contributers talk about GNU
> Radio or is it going to be tutorials and demos? If it is the latter I would
This is a package config check, where is uhd.pc? Is it in your
PKG_CONFIG_PATH?
http://code.ettus.com/redmine/ettus/projects/uhd/wiki#Gnuradio-UHD
-Josh
On 01/21/2011 09:49 AM, Fabian Klaes wrote:
> Dear Alexandru, dear list,
>
> i made the recommended changes (see comments in Alexandrus last m
Dear Alexandru, dear list,
i made the recommended changes (see comments in Alexandrus last message) but
still got the same error at configure:
checking for UHD... no
gr-uhd requires libuhd 2.x.x
configure: error: Component gr-uhd has errors; stopping.
when I try to configure without --enable-gr-u
On 1/21/11 4:19 AM, Martin Braun wrote:
Talking of which: Who actually *does* use GNU Radio? I can't see a whole
lot of active projects going on, not on this list or on CGRAN.
I'm currently implementing my third spacecraft groundstation using
GnuRadio. It's due to go into operation late this ye
On 1/21/2011 8:52 AM, ton ph wrote:
hi everyone,
As i was searching for a book on gnuradio and usrp , i found a book
"Software Defined Radio : with GNU Radio and USRP: 1st Edition" by corby
, and i beleive this could clear me much of my doubts. But a problem is
that i am not able to get any pla
I want to make a few announcements about what's happening in GNU
Radio. First, as I announced on my blog a little bit ago, we are
working on release 3.3.1. This should be done and ready for testing
shortly. Once that is done, we need to begin thinking about the 3.4
release of GNU Radio. And here's
I want to take a moment to bring up the three wishes Jens Elsner posed earlier:
1. A properly designed digital receiver chain of some cool standard
(e.g. DMB, DVB...)
demonstrating the modularity and usability of GNU Radio.
2. Usable, clean graphical sinks (a la Simulink) - fftsink is a quick
h
I want to have a separate thread for discussing the GNU Radio
conference details. Here is what we have so far:
When: Sometime in September, 2011
Where: Philadelphia, PA, USA – probably on the University of Pennsylvania campus
How long: 2.5 – 3 days
The first thing I would like to do is nail down
I want to thank everyone for their opinions over the past few weeks.
And I mean everyone. I have been learning a lot about the needs and
wants of the community, and I hope these discussions have allowed
everyone to think or rethink what they want out of this project. By
“discussions,” I'm assuming
On 01/21/2011 06:29 AM, Achilleas Anastasopoulos wrote:
I just got an E100 from a colleague.
After connecting a monitor through the HDMI and a keyboard/mouse
through the USB OTG
I booted up and the linux login screen comes up.
what is the root password that comes from Ettus?
Also, I noticed tha
On Fri, Jan 21, 2011 at 1:31 AM, Martin Braun wrote:
> On Thu, Jan 20, 2011 at 01:36:46PM -0700, Ben Reynwar wrote:
>> > You've got that right: a soft decider doesn't really decide, but rather
>> > gives a value how good the estimate is. Say you have a binary output,
>> > 1 and -1. A soft decider
Hi there people,
I'd like to put my point here.
I'm a Computer Scientist and Ham radio operator that is entering in this
SDR world. I own a USRP with RFX900, WBX, dbxrx, tvrx, basicrx and
basictx.
ps: I don't make my monthly budget with anything related with SDR.
I already gave some talks and wor
On Fri, Jan 21, 2011 at 6:29 AM, Achilleas Anastasopoulos
wrote:
> I just got an E100 from a colleague.
> After connecting a monitor through the HDMI and a keyboard/mouse
> through the USB OTG
> I booted up and the linux login screen comes up.
>
> what is the root password that comes from Ettus?
>
I just got an E100 from a colleague.
After connecting a monitor through the HDMI and a keyboard/mouse
through the USB OTG
I booted up and the linux login screen comes up.
what is the root password that comes from Ettus?
Also, I noticed that the port named "CONSOLE" is slightly different
from the
On 01/21/2011 04:19 AM, Martin Braun wrote:
>
> Talking of which: Who actually *does* use GNU Radio? I can't see a whole
> lot of active projects going on, not on this list or on CGRAN.
>
>
I use Gnu Radio for a number of things in the "science radio" space. I
have a small suite of
tools I ca
On Fri, Jan 21, 2011 at 08:02:30PM +0800, Howard Wong wrote:
> Sorry this question might be a little bit far from gnuradio.
>
> In the case I record raw data from the air by USRP and write to a
> cfile by filesink.
> I am using a C program to open the cfile to process.
> However, when I compile in
Hi Fabian,
Did you set the PYTHONPATH?
It should be set to PREFIX/lib/python2.6/site-packages where PREFIX is
whatever you have specified during "./configure --prefix=..."
(/usr/local if you haven't specified anything). Check the directory,
there should be a subdirectory called gnuradio and one ca
Hi Fabian,
Did you set the PYTHONPATH?
It should be set to PREFIX/lib/python2.6/site-packages where PREFIX is
whatever you have specified during "./configure --prefix=..."
(/usr/local if you haven't specified anything). Check the directory,
there should be a subdirectory called gnuradio and one ca
hi everyone,
As i was searching for a book on gnuradio and usrp , i found a book
"Software Defined Radio : with GNU Radio and USRP: 1st Edition" by corby ,
and i beleive this could clear me much of my doubts. But a problem is that i
am not able to get any place to download this book. Can someone h
I first tried make distclean and the installation went fine, but when I
tried to start the GRC, following window showed up:
http://tinypic.com/r/dq671d/7 containing the error message "Cannot import
gnuradio. Are your PHYTONPATH and LD_LIBRARY_PATH set correctly?"
> I then tried git clean -dfx and
Sorry this question might be a little bit far from gnuradio.
In the case I record raw data from the air by USRP and write to a cfile
by filesink.
I am using a C program to open the cfile to process.
However, when I compile in Cygwin, the complex.h headers were not found.
#include
Any package
Hi Martin,
On Fri, 21 Jan 2011 10:19:37 +0100, Martin Braun
wrote:
> And with all the drawbacks and bugs that GNU Radio has, there's nothing
> comparable in the open source domain. So if GNU Radio really sucks,
> then how about a proper discussion on what's wrong. And not about which
> HF-fronten
On Fri, Jan 21, 2011 at 08:20:43AM +0530, Sanjay Singh wrote:
> Its not about talking high. Its community of people trying hard to press Ettus
> Research products. Putting people down is not the motto of GNURadio.
>
> Regrading putting off from the list: Discussion is on for open source
> platfor
On Thu, Jan 20, 2011 at 01:36:46PM -0700, Ben Reynwar wrote:
> > You've got that right: a soft decider doesn't really decide, but rather
> > gives a value how good the estimate is. Say you have a binary output,
> > 1 and -1. A soft decider can also give any value in between. If you get
> > a 0, the
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