[Discuss-gnuradio] Channel Equalization in packet based demodulators.

not please let me know and I will try to make it clearer :) Thank you. Regards, Tarun Tiwari UT Dallas ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Mux settings...

Hi Eric, A small question :) Did you mean that 0x3210 was not different from 0x32103210 on RFX boards? Regards, Tarun UT Dallas On 10/22/07, Eric Blossom <[EMAIL PROTECTED]> wrote: > > If you're using a single channel, usrp.determine_rx_mux_value will get you > the right answer, regardless o

Re: [Discuss-gnuradio] saturation with multi_fft.py

scope? Thanks again. Regards, Tarun Mani Tiwari MSEE Student, Research Assistant, Multimedia Comm Lab, UT Dallas On 10/15/07, Eric Blossom <[EMAIL PROTECTED]> wrote: > > On Thu, Oct 11, 2007 at 02:11:38PM -0500, Tarun Tiwari wrote: > > Hi, > > Thanks everybody, this t

Re: [Discuss-gnuradio] saturation with multi_fft.py

Hi, Thanks everybody, this thread helped me a lot to understand the multi antenna cabability of gnuradio. I tried to run the multi_scope.py on a cingle USRP having two rfx2400 daughterboards with following changes in current multi_scope.py: 1) On line 44: nchan changed to 2 from 4 2) On Line 67: "

Re: [Discuss-gnuradio] USRP as relay

Hi Pratik, I hope this would help you http://lists.gnu.org/archive/html/discuss-gnuradio/2006-04/msg00196.html regards, Tarun On 7/18/07, pratik hetamsaria <[EMAIL PROTECTED]> wrote: hi.. I want to make the usrp function as a relay for audio files. Apart from working on rx_voice.py for gett

Re: [Discuss-gnuradio] Send and Recieve data like "Hello World"

would help you. Any suggestions? Thanks for any help Meenaktchi Regards, Tarun On 7/6/07, Chris Albertson <[EMAIL PROTECTED] > wrote: > > > --- Tarun Tiwari <[EMAIL PROTECTED] > wrote: > > > Meenaktchi, > > > > You can pack "Hello World" s

Re: [Discuss-gnuradio] Send and Recieve data like "Hello World"

Meenaktchi, You can pack "Hello World" string as paylaod then use send_pkt(payload) on the transmiter side. similarly unpack the payload at reciever to convert into string. you need to use same formating for pack and unpack at Tx & Rx respectively. I am assuming you are using packet radio. Taru

[Discuss-gnuradio] Audio/Video Tx/Rx

Hi, Anyone working on Audio/Video tx/rx using GNU Radio? Thanks in advance. Regards, Tarun UT Dallas ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Error in my first USRP test

On 6/21/07, Alaelddin Mohammed <[EMAIL PROTECTED]> wrote: it works now, thank you But, when I tried to run usrp_spectrum_sense.py I got this $ python usrp_spectrum_sense.py Traceback (most recent call last): File "usrp_spectrum_sense.py", line 9, in ? from usrpm import usrp_dbid ImportErr

Re: [Discuss-gnuradio] Help on editing a usrp1_source_c.cc file

On 6/21/07, Meenaktchi Venkatachalam <[EMAIL PROTECTED]> wrote: Hi, In the '../gr-usrp/src/usrp1_source_c.cc' file there is a function 'copy_from_usrp_buffer'. I would like to analyze the complex signal converted from 16-bit interleaved I and Q signal. You can try ../gnuradio-examples/pytho

Re: [Discuss-gnuradio] Parameters for USRP (motherboard only) FM receiver

Hi Shane, On 6/19/07, Shane Clark <[EMAIL PROTECTED]> wrote: Hi, I'm trying to setup the USRP to receive and demodulate an FM signal at 175kHz. I have based my code on the wfm_rcv... examples, but I always get a "no suitable daughterboard found" error. I do not understand all of the parameters

[Discuss-gnuradio] Different frequencies for TX/RX and RX2 port on RFX2400

Hi, I was just wondering if someone can give me little bit of information about the clocks for TX/RX & RX2 antenna port on RFX2400. My questions are related to simultaneous transmission using TX/RX and reception using RX2, so my transmit and receive frequencies have to be different on the transc

[Discuss-gnuradio] Adding/recovering packet number using packet_utils python class

Hi, I was wondering if we can add the packet number using current packet_utils python class. When I look into the code, I see that we introduce the preamble, access code, length of the packet, payoad with crc, and padding for usrp using make_packet function. At the same time when I look into the

Re: [Discuss-gnuradio] Make error [svn revision 5708]

Trond Danielsen wrote: I just pulled a fresh copy from svn (rev.5708), ran ./bootstrap; ./configure; make. No problems so far. I recommend that you run ./bootstrap and ./configure again after pulling from svn. This ensures that the generated Makefiles are updated according to the svn changes.

[Discuss-gnuradio] Make error [svn revision 5708]

Hi, Today I update the gnuradio from svn, and received following error in make: make[5]: Entering directory `/home/tarun/gnuradio/gnuradio-core/src/lib/swig' make[5]: *** No rule to make target `../../../../gnuradio-core/src/lib/general/gr_dpll_ff.i', needed by `gnuradio_swig_py_general.cc'. St

[Discuss-gnuradio] NameError in cpm.py from latest svn source code

Hi, I just updated gnuradio from svn and found some errors while using cpm.py. The error is as followed: " File "/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py", line 7700, in __init__ self._BootstrapApp() File "/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.

Re: [Discuss-gnuradio] Bluetooth using RFX-2400

Hi Dominic, RFX2400 works in the range of 2.3GHz - 2.9GHz (both TX/RX) and you may check out http://gnuradio.utah.edu/trac/wiki/UsrpRfxDiagrams for connection diagrams. There is a bandpass filter on board which restrict you to ISM band (2.4 - 2.4835 GHz) , but it can be bypassed if you need. Her

Re: [Discuss-gnuradio] End-to-end delay question

Hi Eric, Can you please give some examples/directions of/on data transceiver applications which you are using/available in GNU Radio repository? Thanks. Tarun On Tue, 8 May 2007 20:47:26 -0700, Eric Blossom wrote: Having the audio be non-blocking will stop the buffering/delay problem. The s

Fwd: [Discuss-gnuradio] std::runtime_error (gdb backtrace included)

Hi Eric, Thanks for your time. Any suggestions on this issue? -- Forwarded message -- From: Tarun Tiwari <[EMAIL PROTECTED]> Date: Apr 13, 2007 7:58 PM Subject: Re: [Discuss-gnuradio] std::runtime_error (gdb backtrace included) To: Eric Blossom <[EMAIL PROTECTED]>

Re: [Discuss-gnuradio] std::runtime_error (gdb backtrace included)

On 4/13/07, Eric Blossom <[EMAIL PROTECTED]> wrote: >On Fri, Apr 13, 2007 at 03:33:46PM -0600, Tarun Tiwari wrote: >Tarun, please tell us more about the situation: >What version of GNU Radio are you using? svn or a tarball? I am running the latest developement codes down

[Discuss-gnuradio] Re: std::runtime_error (gdb backtrace included)

Hi, I recieved the same error at my relay node too and it was for the first time. On 4/13/07, Tarun Tiwari <[EMAIL PROTECTED]> wrote: Hi, I am implementing a relay network for voice transmision and reception. I using threading to start the GUI and flow graph. I am facing a runtime er

[Discuss-gnuradio] std::runtime_error (gdb backtrace included)

Hi, I am implementing a relay network for voice transmision and reception. I using threading to start the GUI and flow graph. I am facing a runtime error in random at destination, whereas it works perfectly at the relay node. At relay node I have bypassed the audio device and have a connection li

[Discuss-gnuradio] d_itemsize error

Hi Friends, I am recieving d_itemsize error in random when I use voice reception using voice_rx.py example. I am receiveing following errors: terminate called after throwing an instance of 'std::runtime_error' wht(): msg length is not a multiple of d_itemsise Aborted Also when I start the appl

Re: [Discuss-gnuradio] Frequency error in USRP.

On 4/10/07, Brian Padalino <[EMAIL PROTECTED]> wrote: What type of modulation are you using and what is your application? GMSK modulation for Relay channels. Currently I am trying to relay the voice on two hop system. Brian Tarun ___ Discuss-gn

Re: [Discuss-gnuradio] Frequency error in USRP.

Hi Brian, Thank you for reply. On 4/10/07, Brian Padalino <[EMAIL PROTECTED]> wrote: The 64MHz oscillator on the board has a maximum 50PPM error. This gives an error of up to 3200Hz. To get to 2.4GHz, that's 37.5x the 64MHz local oscillator. 3200Hz * 37.5 = 120kHz. 2.4e9 - 120e3 = 2

Re: [Discuss-gnuradio] Frequency error in USRP.

Hi Chris, Thank you for your reply. On 4/10/07, Chris Stankevitz <[EMAIL PROTECTED]> wrote: In my application (GPS), I don't even know the desired frequency due to the doppler effect on the fast moving satellites. I use an acquisition routine to locate the frequency which uses FFTs in my cus

[Discuss-gnuradio] Frequency error in USRP.

Hi Matt, Eric, and my dear friends, I received third set of USRP for my research work, but the third USRP is not able to lock/demodulate the desired frequency. When i transmit a signal on 2.4GHz from one of the old USRPs I need to lock the new USRP at 2.39989 GHz else it does not demodulate the s

[Discuss-gnuradio] Anyone successfull on Transciever Function of RFX2400

Hi, I am little skeptical whether transceiver function of RFX2400 works well or not? If anyone has been successfull in implementing ARQ on wireless packet radio, please help me out and enlight me with the implementation. I need to give a demo on JPEG/MPG transmission and reception so that we can

Re:[Discuss-gnuradio] ALOHA, ARQ and simple PHY on GNU Radio

Hi Stefan, I was trying to install your module from source code but received following errors while doing make: gr_convolution_dec.lo -MD -MP -MF .deps/gr_convolution_dec.Tpo -c gr_convolution_dec.cc -fPIC -DPIC -o .libs/gr_convolution_dec.o gr_convolution_dec.cc:405:2: warning: no newline at e

[Discuss-gnuradio] Re: installation error

hey everyone, Hi Ziad, Im using a ubuntu 6.10 ,ive tried compiling the gnuradio but when i tried the configuring gnuradio but i got the error : gr_block.cc:41: error: 'gr_io_signature_sptr' has not been declared gr_block.cc:42: error: 'gr_io_signature_sptr' has not been declared gr_block.cc:

[Discuss-gnuradio] Segmentation Fault in rx_voice.py

Hi, I was trying to use rx_voice and tx_voice examples, but I found following errors on different Fedora PCs. I have one computer (Pentium 4 Xeon 3.40GHz processor speed) with Kernel 2.6.11-1.1369_FC4smp, and another computer (Centrino Core Duo T2300 1.66GHzprocessor speed) with Kernel 2.6.18-1.

Re: [Discuss-gnuradio] Error with ctrl+z

Hi Eric Thank you for your reply. On 3/13/07, Eric Blossom <[EMAIL PROTECTED]> wrote: I suspect that you may have missed the very first line of the debugging output which probably explains why it couldn't open the USRP. Did you capture both stdout and stderr? I didn't capture the stdout and

[Discuss-gnuradio] Error with ctrl+z

Hi, I am implementing a stop-and-wait ARQ system using RFX2400 boards. Sometimes the transmitter suddenly stops working , and if I do ctrl+c the programs stops but does not work wheras if I do ctrl +z, I recieve following error after sometime: ICE default IO error handler doing an exi

Re: [Discuss-gnuradio] Simultaneous RX/TX using RFX2400 Boards.

Hi David, Thank you for you reply. On 3/7/07, David Scaperoth <[EMAIL PROTECTED]> wrote: From your description above, you are transmitting whatever you receive (is this true?). Yes, its true and I am interested in transmitting the amplified signal which I receive on the RX2 port. I'm gu

[Discuss-gnuradio] Simultaneous RX/TX using RFX2400 Boards.

Hi, I have written a code for simultaneous TX/RX for RFX2400 as followed below: self.rx = usrp.source_c (0,self.decim) self.tx = usrp.sink_c (0, self.interp) . . . fg = my_graph() . . . fg.subdev.set_enable(True) # Enable transmitter fg.connect(fg.rx, fg.tx) . . . When I receive and then transm

[Discuss-gnuradio] Symbol synchronization in Packet Radio.

Hi, Can somebody enlighten me about the symbol synchronization in Packet Radio example? I was wondering if someone can tell me which scheme is being used for it. It will be helpful if one can give me reference to the GNU Radio module where I can read the codes line by line to understand it. I ne

Re: [Discuss-gnuradio] Problem using benchmark_rx.py

advise me. Thank you again. Regards, Tarun On 12/7/06, Tom Rondeau <[EMAIL PROTECTED]> wrote: > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tarun Tiwari > Sent: Thursday, December 07, 2006 12:25 AM > To: discuss-gnuradio@gnu.org > Subject: [Discuss-gnuradio]

[Discuss-gnuradio] Problem using benchmark_rx.py

Hi, I am trying to transmit packets using benchamark_tx.py and recieve them using benchmark_rx.py. As mentioned in README file I started first benchmark_rx.py at one machine then started benchmark_tx.py on another machine, but I dont see any print on receiver machine. I am using following command

[Discuss-gnuradio] discuss-gnuradio archive search not working

Hi,Just few hours back, the discuss-gnuradio archive search stopped working. Can somebody resolve the issue.Thank you,TarunPS: my local time is US Central, and writing this mail at 03:22 AM on 11/11/2006. ___ Discuss-gnuradio mailing list Discuss-gnuradi

[Discuss-gnuradio] Sampling rate mismatch in Fedora Core 5

Hi,After a long wait I recieved the hardware. I was trying to run FM Reciever but there is some problem related to the sampling rate of my computer. I received following error message: [EMAIL PROTECTED] usrp]# ./usrp_wfm_rcv.pyUsing RX d'board A: Basic Rx>>> gr_fir_ccf: using SSE >>> gr_fir_fff: us

[Discuss-gnuradio] Problem in usable Python.h header file.

Hi,I am installing GNU Radio 3.0 on Linux Mandriva Official 2007.0, when I am trying to do ./configure I receive an error like "unable to find usable Python.h header file "I found my Python.h file is in /usr/local/include/python2.4 whereas ./configure command alwasy look for /usr/linclude/python2.

Re: [Discuss-gnuradio] CVS build problem with shared_ptr.hpp

Thank you everybody.I installed Boost using source code and the problem has been resolved.Tarun ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] CVS build problem with shared_ptr.hpp

ot;boost".)  If you installed boost-devel using Cygwin setup.exe, you should see shared_ptr.hpp when you do ls /usr/include/boost-1_33_1/boost.   Hope this helps, and let me know if it doesn't.   Regards,   -- Don Ward   - Original Message - From: Tarun Tiwari T

Re: [Discuss-gnuradio] CVS build problem with shared_ptr.hpp

I was trying using ./configure command for compiling GNU Radio on Cygwin and received following error message:gr_boost_include_dir = /usr/include/boost-1_33_1/boost/checking boost/shared_ptr.hpp usability... no checking boost/shared_ptr.hpp presence... nochecking for boost/shared_ptr.hpp... noconfi

Re: [Discuss-gnuradio] Compile source code on Fedora Core 5

Thanks a lot. I can see there are lot of things to install in FC5 and for that one need to have admin privilages.As a beginner, which version of fedora core I should prefer for the gnu radio development. Should I proceed forward with the network computer or get one standalone computer? On 9/29/06,

[Discuss-gnuradio] Compile source code on Fedora Core 5

Can somebody enlighten me regarding authorization level for a user on network computer running on Fedora Core 5. Does it need root access to the network computer for GNU Radio development? If always not, then what is the other option for that? ___ Discu