Re: [Discuss-gnuradio] Please help building a signal processing block.

On Mon, Mar 30, 2009 at 09:17:18AM +0200, Martin Braun wrote: > On Sat, Mar 28, 2009 at 05:35:59PM -0700, Mikhail Tadjikov wrote: > > Thanks, but I'm trying to get weighted average specifically. I've looked at > > the > > code for moving_average... it's close to what I need, but its 1:1 in/out >

Re: [Discuss-gnuradio] USRP2 modulated signal tx error

On Fri, Mar 27, 2009 at 08:42:43AM -0300, Ronaldo Nunez wrote: > Hi Eric, > > Sorry for not reply earlier. I've tried your solution but the error persists. > I will work on the code this morning. If I get positive results I'll send you. > > Thanks for all help. > Ronaldo Can you post a link to t

Re: [Discuss-gnuradio] stream_to_vector input data size and lock/unlock

On Tue, Mar 31, 2009 at 04:51:45PM +1300, Kieran Brownlees wrote: > Hello all, > > I have some interesting behaviour using a stream_to_vector with a large > number of inputs items (12800). > > The standard method of top_block.connect(), top_block.start() works fine but > when I try and perform th

Re: [Discuss-gnuradio] Re: usrp1 harmonic issue

On Mon, Mar 30, 2009 at 09:58:53AM +, feldmaus wrote: > feldmaus gmx.de> writes: > > > Is there any example which corrects the dc offset ? > > So that we see, which commands are up to date. > > I think we have first to calculate the dc offset? > And the to adjust ? > > To calculate the dc o

Re: [Discuss-gnuradio] find_usrps

On Mon, Mar 30, 2009 at 03:14:09PM -0600, wallen wrote: > > Just out of curiosity, is there a more up-to-date web page for the USRP > than what I've found at ? Yes, http://gnuradio.org. We'll be reworking the one at http://www.gnu.org/software/gnuradio and

[Discuss-gnuradio] stream_to_vector input data size and lock/unlock

Hello all, I have some interesting behaviour using a stream_to_vector with a large number of inputs items (12800). The standard method of top_block.connect(), top_block.start() works fine but when I try and perform the same operation after a top block has already been started I get a sched error.

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

Hi all, I created a branch on the cgran server for the usrp2 code. If anyone is interested in still using the usrp with the hier_block2, just dont use the rx/tx.py files. The rest of the files should work with the usrp1. Cheers, Colby On Mon, Mar 30, 2009 at 3:58 PM, George Nychis wrote: > Hi

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

Hi all, CGRAN's trac has a core dumping issue that I still have not figured out how to address yet. So, if you're using the wiki and get blank pages or a 500 internal server error, sorry. I've been trying to sort it out, but no luck yet: http://www.gossamer-threads.com/lists/trac/users/40954 I

Re: [Discuss-gnuradio] find_usrps

On Mon, 2009-03-30 at 14:00 -0700, Johnathan Corgan wrote: > The USRP2 is not supported in GNU Radio 3.1.x. You must either download > and install 3.2rc1 or check out the development trunk using Subversion. That would explain quite a lot! I pulled the code directly from the web page

Re: [Discuss-gnuradio] find_usrps

On Mon, 2009-03-30 at 14:54 -0600, wallen wrote: > So moving on to trying to connect to the USRP2 it seems that the USRP > FAQ indicates that I should run > >find_usrps > > located in the usrp2/host/apps directory. However, I don't see this > directory The USRP2 is not supported in GNU Ra

[Discuss-gnuradio] find_usrps

I'm running Debian Lenny. I've downloaded gnuradio-3.1.3.tar.gz, and as far as I can tell it compiles OK. I have been successful with running: $./configure $ make $ make check $ sudo make install The Dial Tone output example given in the "Exploring GNU Radio" article

[Discuss-gnuradio] Over the air HDTV decoding.

Hi all, I would like to decode the HDTV data that I captured with USRP What would you advise me. It does not have to be continuous though. I just want to be able to decode. Thank you ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.

Re: [Discuss-gnuradio] Re: recorded FM signal from USRP

also check here, kd7lmo has posted some nice samples for people without a USRP http://www.kd7lmo.net/ground_gnuradio_ota.html david 2009/3/30 Philip Balister : > There is a few seconds of broadcast FM here: > > http://ossie.wireless.vt.edu/trac/wiki/CaptureFiles > > The file format is shorts in

Re: [Discuss-gnuradio] Re: recorded FM signal from USRP

There is a few seconds of broadcast FM here: http://ossie.wireless.vt.edu/trac/wiki/CaptureFiles The file format is shorts in big-endian format, but it is easy enough to convert to the gr-complex format. I had a program that did it, but I can't find it. (I think I re-wrote it to do something e

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

Patrick Strasser schrieb: feldmaus wrote am 2009-03-27 20:52: Further on my graphic does not look like my spectrum in the FFT-sink. A FFT sink displays the frequency domain, it's amplitude versus frequency. Printing the samples shows the time domain, amplitude versus time. The FFT sink feeds

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

The cgran server seems to be down. I'll let you know when I am able to get an account. On Mon, Mar 30, 2009 at 8:36 AM, Colby Boyer wrote: > Sure. I will try to get a cgran account and upload my code to their SVN. It > would then be easy to see the changes I made. > > > On Mon, Mar 30, 2009 at 2

Re: [Discuss-gnuradio] scrollarea, tabwindow, panels for grc_wxgui.top_block_gui

GNURadio tries to offer a basic set of gui elements and gui controls. But she cant do everything. You should explore wx python API, and make your own custom windows and widgets. Dont afraid to copy and modify the classes in gnuradio as a start. -Josh feldmaus wrote: Hi All, i want to add s

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Costantini, Andrea wrote: > Hi Colby, > > I am glad that I am not the only one trying to port the code. > I guess you are in a more advanced state. I wasn't even able to run the > test.py. ;-) > > Would you like to share your modified code (even if i

Re: [Discuss-gnuradio] GNU Radio OFDM Theori

adib_sairi wrote: Eric Blossom wrote: There is no documentation of that type for OFDM. Eric if i want to reconfigure the modulation for each sub-carrier (bit loading for OFDM), can i just edit the ofdm benchmark python file? or i have to go in detail until the IFFT and FFT? the OFD

[Discuss-gnuradio] scrollarea, tabwindow, panels for grc_wxgui.top_block_gui

Hi All, i want to add some comfortable elements like a scrollarea, tabwindow and panels for example. Is there any example for this ? I watched the pydoc for this modules, but didn't go further. Any hints ? Or do i have to use for more flexibility ? Regards Markus

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

feldmaus wrote am 2009-03-27 20:52: Further on my graphic does not look like my spectrum in the FFT-sink. A FFT sink displays the frequency domain, it's amplitude versus frequency. Printing the samples shows the time domain, amplitude versus time. The FFT sink feeds the samples through a FFT-

[Discuss-gnuradio] Re: usrp1 harmonic issue

feldmaus gmx.de> writes: > Is there any example which corrects the dc offset ? > So that we see, which commands are up to date. I think we have first to calculate the dc offset? And the to adjust ? To calculate the dc offset we can use: usrp_cal_dc_offset: usage: usrp_cal_dc_offset [-v] [-w whi

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

Hi Douglas! Yes, I was referring to your branch (thank you for that). This comment on the CGRAN made me thinking that also the tx path was changed: "bbn_80211b_tx.py - douggeiger: Works with hier_block2 - with some help from code found …" Have you uploaded some work-in-progress on the rx pa

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

Hi Colby, I am glad that I am not the only one trying to port the code. I guess you are in a more advanced state. I wasn't even able to run the test.py. ;-) Would you like to share your modified code (even if it is not finished)? so that I try to understand your modifications. Best Regards,

[Discuss-gnuradio] Re: usrp1 harmonic issue

Matt Ettus ettus.com> writes: > > > You are not seeing harmonics. You are seeing DC offset, which you have > not corrected for. Is there any example which corrects the dc offset ? So that we see, which commands are up to date. Regards Markus _

Re: re[Discuss-gnuradio] corded FM signal from USRP

Are you working on USRP1 ? Konkreets Bass wrote: > > Hi! > I'm exploring GNU Radio in my master thesys in context of FM > reciever. Where could i get some recorded FM sample signals from > USRP? > Thanks! > ___ > Discuss-gnuradio mailing list > Discus

[Discuss-gnuradio] set value of variable slider

Hi Gnuradio People, i tried to set a value for a variable slider without succes: self._variable_chooser_filter = grc_wxgui.drop_down_control( window=self.GetWin(), callback=self.change_filter, label='Choose Filter', index=0, choices=[1, 2, 3, 4, 5],

Re: [Discuss-gnuradio] Please help building a signal processing block.

On Sat, Mar 28, 2009 at 05:35:59PM -0700, Mikhail Tadjikov wrote: > Thanks, but I'm trying to get weighted average specifically. I've looked at > the > code for moving_average... it's close to what I need, but its 1:1 in/out > ratio, > but I need N:1 ratio. That's the part I'm particular unclear

Re: [Discuss-gnuradio] [Douglas Geiger BBN 802.11b] Porting code on USRP2 problems

Hi Andrea, I am also working to port the 802.11b code to the USRP2. I have finished converting the code to hier_block2, and the bbn_80211b_test.py script works correctly and it can send packets in simulation. I am currently working on modifying the rx, and tx files to connect to the USRP2, but bee