Hi Folks,
I've got some great opportunities I'd like to let you know about:
The first is a Senior Satellite Communication Engineer (SDR).
Our current constellation of satellites (200+) and ground stations communicate
in the S and X bands, running at 64kb/s, 500kb/s, and 1.5+Gb/s (not a typo).
And
Hi Folks!
I'm building gnuradio using pybombs on Ubuntu 18.04 (x86_64)
My intention is to have it use python3.
When I do this:
sudo pip3 install PyBOMBS
pybombs auto-config
pybombs recipes add-defaults
pybombs prefix init ~/gr/default -a default -R gnuradio-default
It builds, and generates pyt
Congratulations to all of you on this new phase of GNU Radio!
Tom, thanks for all you've done serving as the project lead since I stepped
down some 5 years ago. I'm happy to hear about your new adventure as a
DARPA PM!
Johnathan and Ben, thanks for all that you've already done for GNU Radio,
and
Hey Everyone!
It's Eric here. Sorry for being a stranger around here. [For those
of you who arrived since I've been away, I founded GNU Radio, wrote
most of the original code base, worked with Matt to bring the original
USRP and USRP2 into existence, and served as maintainer of GNU Radio
for th
On Tue, Dec 07, 2010 at 11:36:19AM +0100, Anton Blad wrote:
> On Mon, 29 Nov 2010 09:30:11 -0800, Eric Blossom wrote:
> > On Mon, Nov 29, 2010 at 08:42:14AM +0100, antonb wrote:
> >> Hi,
> >>
> >> I am writing an application for which I want to keep the
On Wed, Dec 01, 2010 at 08:05:51PM -0800, madengr wrote:
>
> Sorry if I can't provide any more debug info, I'm new and ignorant, but I
> updated from both the GnuRadio, UHD, and gr-air-mode repos today, and now
> I'm getting two programs with duplicate failure in gr_fir_fff. They just
> dump back
On Wed, Dec 01, 2010 at 04:57:11PM -0600, John Andrews wrote:
> Hi,
> Can we change the DDC value to 0 in usrp_fft.py? Why is this not 0 as one
> would expect to input the center frequency same as the baseband frequency;
> i.e. if I know that my signal is on a carrier at 2.4G then I would use
> usr
On Wed, Dec 01, 2010 at 01:40:03AM -0500, Marcus D. Leech wrote:
>
> On a related note, has anyone looked at enabling the multi-threaded FFTW
> stuff? The cross-over
> points there (between FFTW in a single-thread and FFTW in
> multiple-threads) seem to be lower-down
> on the FFT-size curve.
On Mon, Nov 29, 2010 at 12:42:38AM -0800, Steve Mcmahon wrote:
> Hello:
> I have a USRP2 board and a WBX daughterboard. I am trying to
> implement a scheme where a single-tone sine wave (at frequencies
> between 1 kHz and 10 kHz) is transmitted
> intermittently. Specifically, time is divided into
On Mon, Nov 29, 2010 at 08:42:14AM +0100, antonb wrote:
> Hi,
>
> I am writing an application for which I want to keep the latency to a
> minimum, and this involves trying to keep the buffers between the blocks as
> empty as possible. Basically, I have a source block with an element size of
> 512
On Sat, Nov 27, 2010 at 11:16:24PM -0600, Brett L. Trotter wrote:
> On an up to date fedora 13 x86_64
>
> I just did this:
> 624 git clone http://gnuradio.org/git/gnuradio.git
> 625 cd gnuradio
> 626 git branch --track next origin/next
> 627 git checkout next
> 628 ./bootstrap
> 6
On Fri, Nov 26, 2010 at 11:55:50AM +1100, Kyle Zhou wrote:
> On 26/11/2010 11:28 AM, Eric Blossom wrote:
> >There is no guarantee that set_output_multiple will work if you change
> >it on the fly.
> >
> >It is possible that you could specify a value for set_output_mul
On Thu, Nov 25, 2010 at 11:11:27PM +1100, Kyle Zhou wrote:
> I am writing a module that might need dynamic change to the block length.
> So I want to call set_output_multiple(blk_len) when the flow graph is running.
> Firstly, is this allowed?
> Secondly, what are the effects?
> If I have a "noutp
4 MHz
>
> and one another...
> They meet in frequency by DXC,
> but, in my opinion, they are basically different in baseband frequency...
> I really really cannot understand this magic :(
Try drawing a picture...
Eric
> 2010/11/19 Eric Blossom
>
> > On Fri, Nov
On Fri, Nov 19, 2010 at 05:17:53PM +0900, Songsong Gee wrote:
> I use USRP sink and source and set frequency with 2.6 GHz
> When I run a flow graph, I see like below:
> ==
> A: Flex 2400 Tx MIMO B
> r.baseband_frequency = 260400.0
> r.dxc_freq
On Wed, Nov 17, 2010 at 09:14:47AM -0800, John Andrews wrote:
> Hi,
> I am posting this question again with better explanation as I got no help
> yet.
>
> I have a custom C++ block that I use in the modified dbpsk.py modulation
> scheme. This block basically spreads each input data bit by 1023.
>
On Wed, Nov 17, 2010 at 06:28:32PM +0800, intermilan wrote:
>
> Hi Eric:
>thanks for your help. I figured the question out.
What was the problem and the fix? It's nice to have it here on the
list so that others can find it with their favorite search engine.
Eric
> > Date: Tue, 16 Nov
On Wed, Nov 17, 2010 at 10:48:11AM +0800, intermilan wrote:
>
> hi all:
> I use the command create-gnuradio-out-of-tree-project to bulid a new
> block,and after that I use the following command:
> ./bootstrap
> ./configure
> make
> make check
> sudo make install
>
On Tue, Nov 16, 2010 at 11:51:51AM -0500, g...@vt.edu wrote:
> I set up a two-node link using tunnel.py, two nodes continuously exchanged
> data
> with each other. Quite often, GNU Radio stopped in one node because of the
> following error. Any hints to resolve this problem will be highly apprecia
On Tue, Nov 16, 2010 at 12:27:07PM -0500, XIAN PAN wrote:
> Hi Marcus D. Leech,
>
> Thanks for your response. I try the -d 40 on the command usrp2_fft.py. The
> problem is still here.
Is your system running out of memory?
Look at the output of
$ dmesg
and look at /var/log/messages
$ sudo
On Sat, Nov 13, 2010 at 11:33:05PM -0800, Arya Santini wrote:
> Hi List,
>
> I'm trying to build gnuradio-3.3.0 on Fedora 14 x86_64. I've installed
> all the prerequisites, and I run ./configure and it completes fine,
> reporting the modules going to be built. But when I run 'make', it
> runs for
On Fri, Nov 12, 2010 at 10:05:28AM +1100, Balint Seeber wrote:
> Dear Eric,
>
> I realised I was actually getting ahead of myself regarding scenario (1),
> because - of course - the sample rate means nothing in terms of timing if it
> is not a synchronous graph, and as I stated I didn't use Thrott
On Thu, Nov 11, 2010 at 04:57:56PM -0500, Bishal Thapa wrote:
> Hello,
> I am using USRP2 version of BBN code to look at AP beacons as seen by the
> USRP2 host. There is lots of "S" printing going on, which keeps me from
> reading AP beacon information from STDOUT (unless I save the output to a
>
On Thu, Nov 11, 2010 at 10:23:38AM -0800, Philip Balister wrote:
> I'm building gnuradio from a git checkout using OE to setup the
> toolchains etc. Part of the build process is similar to running
> bootstrap, but with special autotools. Afterwards, git status
> reports change in config.guess and c
On Wed, Nov 10, 2010 at 07:13:17PM -0800, Arya Santini wrote:
> Hi List,
>
> I'm trying to build GNU Radio from source, and when I run ./configure,
> I see USRP is not going to be built under the heading : "The following
> components were skipped either because you asked not to build them or
> the
On Wed, Nov 10, 2010 at 11:51:26AM -0500, George S. Williams wrote:
> Hello,
>
> Is it possible to take input from both the right and left input
> channels of a sound card?
>
> And, can they both be processed in the same flowgraph?
>
> I've spent some time with Google this morning and haven't fo
On Tue, Nov 09, 2010 at 03:23:35PM +0100, Martin Braun wrote:
> On Tue, Nov 09, 2010 at 05:33:15PM +0800, intermilan wrote:
> > hi all:
> > I am writing a new simple signal processing block following the
> > tutorial
> > under the directory /gnuradio-3.2.2/gr-howto-write-a-block-3.2.2(there i
On Tue, Nov 09, 2010 at 04:34:42PM +1100, Balint Seeber wrote:
> Dear all,
>
> I conducted a simple experiment (using GRC) to test the TPB scheduler's
> performance, and following a search here, I cannot find any definitive
> information that would explain the observed behaviour. I kindly request
On Mon, Nov 08, 2010 at 03:18:53PM -0500, Marcus D. Leech wrote:
> On 11/08/2010 03:10 PM, Eric Blossom wrote:
> >
> > I'm guessing that the Fedora 14 package is OK too :-)
> >
> > Eric
> >
> >
> >
> I'll let you know sometime near the
On Sun, Nov 07, 2010 at 10:06:13PM -0500, alexander levedahl wrote:
> I might have made an error here by assuming that since the latest version of
> grc doesn't come with the build for Fedora 13, it doesn't work with Fedora
> 13. When I have used the add/remove software tool, it tells me that
> 0.
On Sat, Nov 06, 2010 at 02:34:35PM -0700, Steve Mcmahon wrote:
> Hello:
>
> Thanks for your reply, Tom Rondeau.
> I guess I'm not sure about what people are saying on this issue
> regarding my problem building GNU Radio 3.3.0 on openSUSE 11.3 using
> gcc 4.5 -- is it gcc-4.5's "fault" (a bug in g
> that
> start collecting data.
>
> I would appreciate if you could explain this a little bit.
> Thank you
>
> On Sat, Nov 6, 2010 at 12:32 PM, Eric Blossom wrote:
>
> > On Sat, Nov 06, 2010 at 11:11:51AM -0400, Burak TUYSUZ wrote:
> > > Hi all,
> &g
On Sat, Nov 06, 2010 at 11:11:51AM -0400, Burak TUYSUZ wrote:
> Hi all,
> I want to read an input from BasicRX pins using read_io()
> I could not find a document how to do this in python.
> An example would be great thank you in advance.
pins = u.read_io(0) # 0 -> side A; 1 -> side B
Eric
__
On Fri, Nov 05, 2010 at 11:14:53AM -0700, sirjanselot wrote:
>
> Hello,
>
> I have two SWIG versions in my machine. I am using Centos 5.5. One is
> installed using repositories and the other is installed using source. Since
> Centos doesn't update their repositories on a regular basis, I had t
On Thu, Nov 04, 2010 at 03:07:42PM -0500, Marc Epard wrote:
> This reminds me of a question. What do you guys use for profiling
> native code on Linux? I have a lot more experience on Mac OS where
> we have Shark, Instruments and the like.
Marc,
I like to use oprofile. It's packaged for Fedora
On Thu, Nov 04, 2010 at 10:17:04AM -0700, Steve Mcmahon wrote:
> It took me a while to get some time to go back to my openSUSE 11.3 machine
> and regenerate the error message. Sorry, I should have done this when I made
> the initial post.
>
> So I successfully installed the following from source
On Thu, Nov 04, 2010 at 12:30:51AM -0400, Achilleas Anastasopoulos wrote:
> Nick and others,
>
> I have decoded a capture of ATSC that Nick provided (many thanks).
> Here are some numbers for double-checking:
> 3) the output of the field_sync_demux (pipe_5) is ~455MB which i don't
> know what it
On Mon, Nov 01, 2010 at 03:29:25PM -0700, Michael Civ wrote:
> Hello, I posted this a week ago and received no response. Any comments or
> suggestions would be greatly appreciate.
>
> I recently got python programs to successfully import the howto
> module, but I cannot use the functions:
>
Mi
On Mon, Nov 01, 2010 at 05:36:35PM +0100, Jorge Miguel wrote:
> Hello,
>
> I will rephrase former question.
Jorge, I don't know the answer to your question, but I do that the
answer is in the source code that is associated with the XCVR2450.
You haven't specified whether you're using the UHD or
On Fri, Oct 29, 2010 at 01:54:19PM -0700, Matt Dunstan wrote:
> Hi,
>
> OK, I really don't know what to do with that GNU Radio. I tried to
> install
> it many times with CygWin and MinGW but no success, this is why I have this
> question: does anybody have sucessfully installed GNU Radio on
On Fri, Oct 29, 2010 at 10:22:27AM -0700, Sarah Boutwell wrote:
> Hi all.
>
> I'm working on using GNU radio to receive and process GSM signals. In
> looking at the usrp_rx_cfile.py program, it appears that the DDC's MUX value
> is set automatically by probing the USRP. In our case it sets the M
On Thu, Oct 28, 2010 at 06:13:12PM +0200, Jasper Kanbier wrote:
> The FM-Demphasis block seems to work, but FM Preemphasis does nothing to
> the frequency response..looks broken to me..
>
OK. Please fix.
Eric
___
Discuss-gnuradio mailing list
Discus
.6.9, not stripped
>
> Arun
I think you're missing an i386 compatibility library.
Sorry, I'm not sure what it's called under Ubuntu.
Eric
> On 10/26/2010 11:45 PM, Eric Blossom wrote:
> >On Tue, Oct 26, 2010 at 10:48:23PM -0400, Arun Pillai wrote:
> >>Eric,
On Tue, Oct 26, 2010 at 10:48:23PM -0400, Arun Pillai wrote:
> Eric,
>
> The output of ldd is below:
>
> $ ldd /opt/microblaze/bin/mb-gcc
> not a dynamic executable
What does
$ file /opt/microblaze/bin/mb-gcc
Give?
I get:
$ file /opt/microblaze/bin/mb-gcc
/opt/microblaze/bin/mb-gc
On Tue, Oct 26, 2010 at 10:04:10PM -0400, Arun Pillai wrote:
> I am also trying to build the microblaze compiler from scratch but I
> am unable to get the patch from svn.
>
> $ svn export
> http://gnuradio.org/svn/gnuradio/trunk/dtools/microblaze/mb-gcc-4.1.1-gr-1.patch
>
> svn: OPTIONS of
> 'h
On Mon, Oct 25, 2010 at 12:36:13PM -0700, Andrew Fong wrote:
> Hi,
>
> I want to create a block that requires 1 input items and
> produces 1 output items on a single stream. However, I'm
> getting the following message: sched: is
> requesting more input data
> than we can provide.
>
On Mon, Oct 25, 2010 at 11:38:00AM -0400, Almohanad Fayez wrote:
> Hi, sent an email a while back about what I thought was a scheduler
> issue with gnuradio on the beagleboard. Basically I've been writing
> custom GNU Radio block for the OMAP's DSP and running them on the
> beagleboard. On occas
On Sun, Oct 24, 2010 at 02:28:04PM -0700, David Knox wrote:
>
>
> Eric Blossom wrote:
> >
> > 99% of the base code distributed with GNU Radio (runtime + blocks)
> > allocates NO MEMORY once the flow graph has started (see below for
> > exceptions).
> >
&g
On Sun, Oct 24, 2010 at 09:19:25AM -0700, David Knox wrote:
>
> I am running some Zigbee code from UCLA with some modifications of my own...
> When I run the (modified) code, RAM is slowly (but surely) consumed with
> high CPU usage. After about half an hour, the CPU/RAM monitor shows 100%
> RAM
On Sat, Oct 23, 2010 at 06:52:34PM -0700, Nick Foster wrote:
> Hi all,
>
> I finally got around to cleaning up my Mode S receiver enough for public
> release. The following is a short description of the software:
Cool stuff!
Thanks!
Eric
___
Discuss-g
On Sat, Oct 23, 2010 at 01:43:11PM -0700, Thomas Spuhler wrote:
> How can I get help to build/package Gnuradio. the USRP2 component doesn't
> build anymore with newest gcc
>
> http://pastebin.mandriva.com/21049
>
I'm pretty sure this is fixed on master:
http://gnuradio.org/redmine/wiki/gnura
On Thu, Oct 21, 2010 at 05:06:26PM +0200, Martin Braun wrote:
> Hi list,
Hi Martin!
> Since the API for gr_blocks with multiple outputs was changed a bit with
> version 3.3.0, I have a couple of questions.
>
> 1) The return value for general_work() is no longer relevant for the
> number of produ
On Thu, Oct 21, 2010 at 02:23:20AM -0400, Marcus D. Leech wrote:
> On 10/21/2010 02:10 AM, Eric Blossom wrote:
> > On Thu, Oct 21, 2010 at 12:41:16AM -0400, Marcus D. Leech wrote:
> >
> >> I had a flow-graph that earlier today had a latency of roughly 1 second
>
On Thu, Oct 21, 2010 at 12:41:16AM -0400, Marcus D. Leech wrote:
> I had a flow-graph that earlier today had a latency of roughly 1 second
> or so.
>
> When I tested it this evening, after it had been running for several
> hours, the latency was
> back up to *several tens of seconds*!!!. Which
On Wed, Oct 20, 2010 at 04:47:47PM -0700, ish13 wrote:
>
> I get an error with I use ./configure when I am installing boost. The
> following commands are entered in the terminal when I am installing.
Why are you building boost? It's packaged for pretty much every
reasonably modern distribution.
On Wed, Oct 20, 2010 at 06:49:21PM -0600, Joseph Craig wrote:
> Hi Marcus,
>
> Thanks for the quick reply...
>
>
> On Oct 20, 2010, at 5:51 PM, Marcus D. Leech wrote:
>
> > On 10/20/2010 07:13 PM, Joseph Craig wrote:
> >> I have managed to install gnuradio and run usrp_fft.py with success!
> >>
On Wed, Oct 20, 2010 at 02:30:12PM -0400, Philip Balister wrote:
> On 10/20/2010 01:49 PM, Eric Blossom wrote:
> >On Wed, Oct 20, 2010 at 01:02:15PM -0400, Philip Balister wrote:
> >>On 10/19/2010 10:51 PM, Eric Blossom wrote:
> >>OK, it looks like x86 sets SHMLBA
On Wed, Oct 20, 2010 at 01:02:15PM -0400, Philip Balister wrote:
> On 10/19/2010 10:51 PM, Eric Blossom wrote:
> >
> >>In both cases I can hear the dial tone fine. I'm curious why I get
> >>the shmat error the first time only.
> >
> >You should see it
On Tue, Oct 19, 2010 at 08:34:40PM -0400, Philip Balister wrote:
> I'm seeing this issue on my omap3 install with the dialtone flowgraph:
>
> # python /usr/share/gnuradio/examples/audio/dial_tone.py
>
>
> gr_vmcircbuf_createfilemapping: createfilemapping is not available
>
> gr_vmcircbuf_sysv_s
On Mon, Oct 18, 2010 at 08:37:33PM -0400, Marcus D. Leech wrote:
> I've noticed latency issues with one of the applications I'm working on.
> Latencies of up to tens of seconds
> have been observed, which I tried to combat by specifying
> recv_buff_size in the parameter list.
>
> Right now, I'm
FYI,
Always a good time, the Chaos Communication Congress 27C3 will be held
from Monday December 27 to Thursday December 30, 2010 in Berlin,
Germany.
Eric
--- Begin Message ---
For those who haven't noticed yet but want to attend the CCC-congress 27C3 in
december: tickets are pre-sale only this
On Tue, Oct 12, 2010 at 04:31:38PM -0400, Marcus D. Leech wrote:
> I have an Atom D-510 running Fedora 12, and the latest UHD+GnuRadio (as
> of this morning).
>
> I've noticed that if I turn on "Peak Hold" in the FFT display, the
> entire input side of the GUI becomes
> unresponsive to input, ev
On Tue, Oct 12, 2010 at 10:16:31AM -0400, Steven Clark wrote:
> Hi-
>
> Is it possible to receive simultaneously from 1 WBX card, and 1 BasicRX
> card, on the same USRP1? Attempting this with GRC gives:
> "Cannot compute dual mux when mixing quadrature and non-quadrature
> subdevices"
>
> I under
On Wed, Oct 06, 2010 at 11:47:27PM -0700, jmiggal wrote:
>
> Hi all,
>
> I have the same doubt. I want to generate a pulse (with a duty cycle
> less than 50%) and I do not know how to do it.
>
> I saw gr.sig_source_x but this only generate pulses at 50% duty cycle.
>
> I tried to multiply seve
On Mon, Oct 04, 2010 at 01:27:48PM -0400, devin kelly wrote:
> Hello,
>
> I'm having a problem, where I want to receive data from a specified
> amount of time/samples and then stop. I'm using a USRP2 with the UHD.
> So far, everything works fine, except for when I try to stop. My
> script exits
On Wed, Sep 29, 2010 at 01:47:22PM -0700, John Andrews wrote:
> Hi,
> This is more of a programming question than a gnuradio question.
>
> I am writing a C++ block that takes in a stream of complex data, an N
> element block {B} is chosen from the stream, this block is multiplied with a
> set {M1,
On Wed, Sep 29, 2010 at 04:14:18PM -0400, Justin Bracken wrote:
> Hello All,
>
> I am expecting to see a similiar file size in a simple test file that im
> running and I don't get that. Is there something Im missing?
>
> USRP2->FileSink
> SignalSource->Throttle->FileSink
>
> I have checked obvio
On Mon, Sep 27, 2010 at 07:02:34AM -0400, Philip Balister wrote:
> It seems like there are some environment variables you can set to
> make GNU radio print some debug info. Does anyone have a list of
> these?
>
> Philip
None that I'm aware of :-)
There are some #define's in parts of the runtime
On Mon, Sep 27, 2010 at 10:07:07AM +0200, Jorge Miguel wrote:
> Hi all!
>
> I am Tx/Rx a FM signal at the same time, but I can see a lot of S
> messages that mean my CPU cannot keep up with all frames generated by the
> USRP2 and drop most of them.
> However I have a quite new laptop with a CP
On Sun, Sep 26, 2010 at 09:40:58AM -0400, Tom Rondeau wrote:
> On Sat, Sep 25, 2010 at 6:23 PM, Josh Blum wrote:
> >
> >>
> >> I agree with you it's not exactly right.
> >>
> >> I'm not sure about the right action.
> >>
> >> This issue should probably go onto the list of things to be considered
>
On Sat, Sep 25, 2010 at 12:32:36PM -0700, Josh Blum wrote:
>
> >Fair enough, Eric. So do you suggest another approach that allows
> >boostrap/configure/make to "just work", or simply more notes
> > about this in the build instructions when you're using UHD?
> >
> >
>
> The issue being that all
On Sat, Sep 25, 2010 at 12:23:19PM -0700, Josh Blum wrote:
>
>
> On 09/25/2010 12:01 PM, Eric Blossom wrote:
> >On Sat, Sep 25, 2010 at 10:24:18AM -0700, Josh Blum wrote:
> >>This turns out to be a bug in gnuradio configure - when --prefix is
> >>not specifi
On Sat, Sep 25, 2010 at 03:09:47PM -0400, Marcus D. Leech wrote:
> >
> > There definitely shouldn't be any PKG_CONFIG_PATH special case
> > handling for anything in grc_.m4.
> >
> > A ton of effort was put into making the building system work reliably
> > and consistently (mostly by Michael Dickens
On Sat, Sep 25, 2010 at 10:24:18AM -0700, Josh Blum wrote:
> This turns out to be a bug in gnuradio configure - when --prefix is
> not specified with ./configure, the ${prefix} variable is set to
> NONE
Listen guys, you may not like this behavior, but it's not a bug.
If you read the makefile stan
On Tue, Sep 21, 2010 at 08:24:53PM +1200, John Shields wrote:
> I recently purchased a USRP and have a fresh install of WUBI (HP Pavillion
> DV5 , Windows Home Vista) and used
> gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall to install things.
>
> I passed 'make check' correctly
>
> I have m
On Fri, Sep 17, 2010 at 05:02:00PM +0200, Fabrizio Tappero wrote:
> hello,
> I am trying to compile this C++ file:
> http://gnuradio.org/redmine/wiki/1/UsrpFAQCppInterface
> by doing:
> g++ usrp_test_c++.cpp -o testusrp -lusrp
>
> and I get the following error:
> test_usrp_standard_rx.cc:28:39: er
On Thu, Sep 16, 2010 at 03:26:17PM +0200, Matthias Schäfer wrote:
> Am 16.09.2010 07:49, schrieb Eric Blossom:
> > A couple of things. 32000 is likely to be too big and will probably
> > result in clipping. Try 3200 to start with.
> >
> > It's unlikely that f/w
On Wed, Sep 15, 2010 at 05:55:12PM +0200, Matthias Schäfer wrote:
> Hi List,
> I'm currently working on a standalone firmware app for USRP2. My
> goal is to send a constant signal with the xcvr2450 dboard. I
> skipped the tuning via firmware by doing this prior from a host
> using the simple_usrp
On Sat, Sep 11, 2010 at 04:57:26PM -0400, Andrew Ge wrote:
> Eric,
>
> Many of us are deeply grateful to you for what you have contributed
> to GNU Radio development, Q/A, and maintenance. Without your pioneer
> work, commitment and dedication, GNU Radio would not be like what we
> have today (th
As some of you know, I've been involved with GNU Radio for a long
time. The idea that became GNU Radio started as a conversation over
dinner in San Francisco with John Gilmore, something like 10 years
ago.
Interest and use of GNU Radio is currently at the highest level it's
ever been. I however,
On Fri, Sep 10, 2010 at 10:19:05AM +1200, Kieran Brownlees wrote:
> We have seen the same behaviour when trying to run overnight on the USRP1,
> the flowgraph was just doing FM mod (LFRX in LFTX out) and it had a
> graphical sink. Have the flowgraphs you used been made in GRC (ie could this
> be a
On Thu, Sep 09, 2010 at 01:32:01PM -0400, Marcus D. Leech wrote:
> On 09/09/2010 11:42 AM, Anil Sharma wrote:
> >Hi everyone,
> > I want to test something with usrp running continously under
> >normal environment.
> >Can someone tell me the real data of how long usrp is capable of
> >running con
On Sat, Sep 04, 2010 at 08:22:38PM -0400, Marcus D. Leech wrote:
> On 09/04/2010 08:08 PM, Tom Rondeau wrote:
> > On Sat, Sep 4, 2010 at 12:19 AM, Marcus D. Leech wrote
> >
> > Like Eric said, remove the throttle or at least change the rate and
> > that should clean things up.
> >
> > Tom
> >
>
On Fri, Sep 03, 2010 at 04:21:53PM -0700, Jack Ott wrote:
>
>
> Matt Ettus wrote:
> >
> > On 09/02/2010 07:09 AM, Jack Ott wrote:
> >>
> >> The strange thing is that when the fft's sample rate is at 25Msps which
> >> equals the USRP's bandwidth at a decimation of 4 everything works fine
> >> wit
On Fri, Sep 03, 2010 at 10:09:01PM -0400, Marcus D. Leech wrote:
> I've got a flow-graph with a throttled random byte source, which is a
> test input for a modulator:
>
> http://www.sbrac.org/files/fm4_test_modulator.grc
>
> http://www.sbrac.org/files/fm4_test_modulator.py
>
> The source is thro
On Thu, Sep 02, 2010 at 01:47:34PM -0400, Dan Harasty wrote:
> Hello, all.
>
> OK, I know I'm just the "new guy" here, and it may be poor form to
> suggest that a well established forum should change its ways
:-)
> But I find the email-based discussion list VERY inefficient.
> - any sense o
On Wed, Sep 01, 2010 at 07:07:26PM -0600, Malihe Ahmadi wrote:
> Hi,
>
> I am using USRP2+RFX2400 board and trying to adapt our packetized
> communication on the board. As I understand the Ethernet does its
> own packetization on information data and we don't like that.
> therefore we are looking
On Mon, Aug 30, 2010 at 08:42:51PM -0400, Philip Balister wrote:
> I've got gnuradio cross compiled for the armv7 and have it NFS
> mounted on the target hw. Is there an easy way to test gnuradio by
> running applications out of the build tree?
Easy way? No.
> I know about running make check on
On Sun, Aug 29, 2010 at 07:27:21PM -0500, Venkat Vinod wrote:
> Hello All,
>
> I am having some difficulties implementing a cognitive receiver program that
> involves dynamically reconfiguring the USRP between sensing the spectrum and
> acting as a receiver based on the results of the spectrum sen
On Sun, Aug 29, 2010 at 10:47:22AM -0400, Philip Balister wrote:
> gnuradio.org is showing a redmine internal error.
>
> Philip
Fixed with big hammer :-)
Looks like the version of redmine we're using leaks memory and
eventually (a couple of weeks?) consumes all memory and swap...
Eric
On Fri, Aug 27, 2010 at 12:19:53PM -0400, Srinivas wrote:
>
> Another related question is: Who sets the parameters for the work function
> in this block ? particularly noutput_samples.
>
Srinivas,
The parameters passed to work are determined by the GR runtime system.
Their values depend on a lo
On Wed, Aug 25, 2010 at 04:03:59PM -0700, Brook Lin wrote:
>
> Thanks, Marcus.
>
> I tried usrp_fft.py and got the same error. I also tried dial_tone.py under
> /gnuradio-example/python/audio, but I got the similar error:
I'm guessing that you have more than one installation on your system.
Perh
On Wed, Aug 25, 2010 at 02:21:27PM -0700, Brook Lin wrote:
>
> Thanks again for your replies. But, I did try:
>
> $ cp /etc/ld.so.conf /tmp/ld.so.conf
> $ echo /usr/local/lib >> /tmp/ld.so.conf
> $ sudo mv /tmp/ld.so.conf /etc/ld.so.conf
> $ sudo ldconfig
>
> Nothing helps. BTW, I used libboost-
On Wed, Aug 25, 2010 at 11:53:02AM +0530, Sanjay Singh wrote:
> Hello Eric,
>
> In USRP1, I don't want AD9862 to use in my application for many reasons.
>
> Am looking for changing four parallel pipes of ADC's into two parallel pipes
> of ADC's(having interleaved IQ as in the case of DAC's).
> I
On Wed, Aug 25, 2010 at 10:08:22AM -0300, John Li wrote:
> Hi!
>
> I have many source blocks with different kinds of signal generator and I
> want to create a configurable unique block.
>
> Can I make a source block with multiple outputs each one with a different
> rate?
>
> Thank you,
> John
Y
On Tue, Aug 24, 2010 at 01:49:09PM -0700, Phong Do wrote:
>
> Hello Tom,
>
> Can you explain me why should gr_peak_detector need negative inputs ?
If you use grep, you can find places in the code where it is used, and
then answer your own question.
> What about the variable "look ahead" ? I wro
On Mon, Aug 23, 2010 at 05:18:58PM +0800, intermilan wrote:
>
> hi Eric:
>
> I think I am the one who ask the same question in my last
> e-mail.But there is no answer for it.I still can not find where is
> the process of setting this value.and I do not understand why this
> value is 4M.I
On Mon, Aug 23, 2010 at 09:42:56AM +0800, intermilan wrote:
>
> Hi all:
> when I run the test program test_usrp_standard_tx/rx.cc, I
> found that the DC offect is set to 4M. So can anyone tell me
> how this value come out and where can I find the process of
> setting this valu
On Fri, Aug 20, 2010 at 12:56:30AM -0700, Thunder87 wrote:
>
> Somehow managed to install git and get gnuradio source. Now I have a problem
> with source installation. "sudo ./configure" says:
>
> The following components were skipped either because you asked not
> to build them or they didn't pa
On Sat, Aug 14, 2010 at 03:16:38AM +0400, Elvis Dowson wrote:
> Hi Eric,
>
> On Aug 13, 2010, at 8:38 PM, Eric Blossom wrote:
>
> > Given the interfaces exported by ALSA, you'd need to figure out how to
> > honor the condition "ok_to_block == False".
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