Re: [Discuss-gnuradio] Write bin to SD card

2009-01-27 Thread Yabo Li
Hi Eric, Thanks very much for your reply. I tried to verify the bin that I programmed in the SD card using -v option. No error message and no success message either. But if I plug in the SD card to the USRP2, I still cannot get any LED on. Do you know what could cause this problem? Thanks! Regar

Re: [Discuss-gnuradio] help: cannot send after transport endpoint shutdown

2009-01-27 Thread Eric Blossom
On Wed, Jan 28, 2009 at 01:41:06PM +0800, Joreen Tan wrote: > > Hi, > > I have got this error message when i'm trying to use this two commands to > free up the usb resource, > > modprobe -vr ehci_hcd > modprobe -v ehci_hcd > > the error message is: > > usb_control_msg failed: error sendi

[Discuss-gnuradio] help: cannot send after transport endpoint shutdown

2009-01-27 Thread Joreen Tan
Hi, I have got this error message when i'm trying to use this two commands to free up the usb resource, modprobe -vr ehci_hcd modprobe -v ehci_hcd the error message is: usb_control_msg failed: error sending control message: Cannot send after transport endpoint shutdown Can anyone help

Re: [Discuss-gnuradio] Exploring the world of GNU

2009-01-27 Thread Eric Blossom
On Wed, Jan 28, 2009 at 03:18:48PM +1300, Bari Bari wrote: > Hi > I have just started work on gnu project. > Initially i got basic concept of Python and now studying gnuradio through > its website.can any body help me to give guidance about getting basic > knowledge so that I will be able to do som

[Discuss-gnuradio] Exploring the world of GNU

2009-01-27 Thread Bari Bari
Hi I have just started work on gnu project. Initially i got basic concept of Python and now studying gnuradio through its website.can any body help me to give guidance about getting basic knowledge so that I will be able to do some projects in this field. or any body have some basic programs with d

[Discuss-gnuradio] Exploring the world of GNU

2009-01-27 Thread Bari Bari
Hi I have just started work on gnu project. Initially i got basic concept of Python and now studying gnuradio through its website.can any body help me to give guidance about getting basic knowledge so that I will be able to do some projects in this field. or any body have some basic programs with d

[Discuss-gnuradio] gr-trellis.html

2009-01-27 Thread w w
Greetings, I was wondering if someone could provide the following file? I went to that location however gr-trellis.html is not there. I read about this doc in the readme file of the gr-trellis example directrory. There was gr-trellis.xml but Internet Explorer won't display it and notepad is j

[Discuss-gnuradio] block destructors

2009-01-27 Thread Brett L. Trotter
I'm doing some logging of what time signal events happen and in the destructor of a custom signal block, I'm printing a log line to a file, followed by an fflush, but i'm not always getting my line. Is the destructor not happening, or is something else transpiring? Is there a way to ensure a destr

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread Achilleas Anastasopoulos
Yufeng, For an example on how to do that with two convolutionally encoded transmissions look at the GRC example in: http://gnuradio.org/trac/browser/gnuradio/trunk/grc/examples/trellis/interference_cancellation.grc Achilleas --- Hello, everyone, We've just

Re: [Discuss-gnuradio] Using different sizes for the different input ports of one GNU Radio block

2009-01-27 Thread Eric Blossom
On Tue, Jan 27, 2009 at 05:36:21PM +, Alvaro Palomo wrote: > Hello, > > I would like to know if it is possible to use different data types or > different vector sizes for the different input ( or output) ports of a > GNU Radio block. Yes. Take a look at gr_io_signature.h Eric _

[Discuss-gnuradio] Using different sizes for the different input ports of one GNU Radio block

2009-01-27 Thread Alvaro Palomo
Hello, I would like to know if it is possible to use different data types or different vector sizes for the different input ( or output) ports of a GNU Radio block. I explain myself. When the input or output signature of a block is specified, the parameters provided are: minimum number of po

Re: [Discuss-gnuradio] Re: Discuss-gnuradio Digest, Vol 74, Issue 72

2009-01-27 Thread Eric Blossom
On Tue, Jan 27, 2009 at 11:09:49AM -0600, jingx kwan wrote: > Hello, > > I have attached the PDF file which included the soft code. > > Sophal > > On Tue, Jan 27, 2009 at 11:00 AM, wrote: > > > Send Discuss-gnuradio mailing list submissions to > >discuss-gnuradio@gnu.org > > > > To subs

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread Johnathan Corgan
On Tue, 2009-01-27 at 12:23 -0500, yufeng wang wrote: > I'd like to use one of them to transmit the sum of two (uncoded) > signals, useful and interference, with possible relative scaling to > simulate different channels. At the receiver side, I wanna then > implement different demodulators, like

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread Eric Blossom
On Tue, Jan 27, 2009 at 12:23:41PM -0500, yufeng wang wrote: > Hello, everyone, > > We've just got two USRPs in our lab and we want to start using them to > do some demodulation. > > I'd like to use one of them to transmit the sum of two (uncoded) > signals, useful and interference, with possible

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread yufeng wang
Hello, everyone, We've just got two USRPs in our lab and we want to start using them to do some demodulation. I'd like to use one of them to transmit the sum of two (uncoded) signals, useful and interference, with possible relative scaling to simulate different channels. At the receiver side, I w

Re: Fwd: [Discuss-gnuradio] Basic problem installing GSSM

2009-01-27 Thread José Carlos Reyes
Thank you for your help, but now when I type sudo /usr/local/bin/mktun gsm in the step 5 in the gssm installation. I gives me the following error: *...@wsn-desktop:~/Escritorio/wireshark-0.99.5$ sudo /usr/local/bin/mktun gsm /usr/local/bin/mktun: error while loading shared libraries: libgruel.so.0

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread Eric Blossom
On Tue, Jan 27, 2009 at 05:06:39PM +0100, José Carlos Reyes wrote: > Hi, > > I want to demodulate GSM control channels too. Particularly, I am interested > in AGCH and PCH channels (GSM Down Link). Is OpenBTS what we are looking > for? > I am trying to use gssm but I am having some problems with t

Re: [Discuss-gnuradio] Listen to Mp3 via FM broadcast

2009-01-27 Thread Dimitris Symeonidis
could you post a link to this code? I could take a look at it for you... Dimitris Symeonidis "If you think you're too small to make a difference, try sleeping with a mosquito!" - Amnesty International On Sun, Jan 25, 2009 at 21:00, jingx kwan wrote: > Hello, > > I just have the GNU Radio equip

Re: Fwd: [Discuss-gnuradio] Basic problem installing GSSM

2009-01-27 Thread Johnathan Corgan
On Tue, 2009-01-27 at 16:59 +0100, José Carlos Reyes wrote: > Now, when I try to demod traffic, in the last step when I try to start > the gssm_usrp.py script, it gives me the following error: > > > w...@wsn-desktop:~/Escritorio/gssm-v0.1/src/python$ ./gssm_usrp.py > Traceback (most recent call

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread José Carlos Reyes
Hi, I want to demodulate GSM control channels too. Particularly, I am interested in AGCH and PCH channels (GSM Down Link). Is OpenBTS what we are looking for? I am trying to use gssm but I am having some problems with the installation. Is better to use OpenBTS? Thanks in advance. Sincerely, José

Fwd: [Discuss-gnuradio] Basic problem installing GSSM

2009-01-27 Thread José Carlos Reyes
Thanks for your help, Steve. It was what I was looking for. Now, when I try to demod traffic, in the last step when I try to start the gssm_usrp.py script, it gives me the following error: w...@wsn-desktop:~/Escritorio/gssm-v0.1/src/python$ ./gssm_usrp.py Traceback (most recent call last): Fil

Re: [Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread Eric Blossom
On Tue, Jan 27, 2009 at 07:20:42PM +0500, M. Awais Arshad wrote: > Hello , I want to demodulate Gsm control channels , which i have > captured using rfx900. i checked there specturm using fft,py file , Can > anyone kindly guide me ,, wht steps should i take from here , to demodulate > them

[Discuss-gnuradio] Gmsk_demod()

2009-01-27 Thread M. Awais Arshad
Hello , I want to demodulate Gsm control channels , which i have captured using rfx900. i checked there specturm using fft,py file , Can anyone kindly guide me ,, wht steps should i take from here , to demodulate them and also is there any way to analyze them in time-domain for a given car

[Discuss-gnuradio] GNURADIO 64 QAM 200 MHZ

2009-01-27 Thread didem colak
Hi all, I want to configure USRP with Basic TX and Basic RX daughter boards using GNU Radio. I am not sure their capabilities are convenient for VHF 200 MHz and 64 QAM transmission. If they are suitable , which python or C++ programs can I use as examples for writing new program? also I trie

Re: [Discuss-gnuradio] Write bin to SD card

2009-01-27 Thread Eric Blossom
On Mon, Jan 26, 2009 at 11:15:15PM -0800, Yabo Li wrote: > Hi, > > I tried to follow the instructions in "USRP2UserFAQ" to program the SD card > with the bin files from http://gnuradio.org/releases/usrp2-bin/trunk/. > (txrx.bin and u2_rev3.bin), there is no error message showing up. However, > whe

Re: [Discuss-gnuradio] Simple Broadcast FM Receiver

2009-01-27 Thread Eric Blossom
On Mon, Jan 26, 2009 at 10:45:46PM -0800, Firas Abbas wrote: > Hi, > > > On Tue, 1/27/09, Eric Blossom wrote: > > > > > > Attention all newbies: > > > > Please read the GNU Radio FAQ and the USRP FAQ and try > > searching with google before posting to the list. > > > > http://gnuradio.org/tr

Re: [Discuss-gnuradio] USRP continues to transmit after usrp_siggen.py stopped

2009-01-27 Thread Eric Blossom
On Mon, Jan 26, 2009 at 09:03:32PM -0800, Johnathan Corgan wrote: > On Sun, Jan 25, 2009 at 9:21 PM, Kimminau Jr., Leo F. wrote: > > > Using a PowerMac G5 to control the USRP, if I stop usrp_siggen.py, the USRP > > continues to transmit. Is this expected? > > No. > > > This behavior is differe

[Discuss-gnuradio] Basic problem installing GSSM

2009-01-27 Thread José Carlos Reyes
Hi all, I am trying to install gssm v.01 and when I type *sudo ./configure*, it shows the following last lines. checking GNURADIO_CORE_CFLAGS... -pthread -DOMNITHREAD_POSIX=1 -I/opt/boost_1_37_0/include/boost-1_37 -I/usr/local/include/gnuradio -I/usr/local/include checking GNURADIO_CORE_LIBS...