[Discuss-gnuradio] usrp_source to file_sink ... what gets written when no transmission

Hi friends, I have a usrp_source connected to a file_sink with Rx frequency 2.4GHz. I was experimenting with Tx and Rx using two different USRPs by transmitting a sine using sig_source block. I don't understand why is it that the usrp_source writes some junk data to the file_sink even when I am

[Discuss-gnuradio] Can we use any sampling rate in tunnel.py or benchmark_tx.py

Hi friends, This question may sound stupid but I cannot really know if I am thinking right or wrong. Can I set the sampling rate of tunnel or benchmark_tx to be anything (of course to those supported by the system) as I think as far as the data rate of USB is maintained I should be able to do

Re: [Discuss-gnuradio] Intermediate frequency question

Yeah, I got it. I read in a tutorial and I understand now. Thanks again. On Wed, May 13, 2009 at 12:21 AM, Jason Uher jasonu...@gmail.com wrote: If I am using RFX2400 then what is the IF frequency and can we change this to some other value? Correct me if the question I asked is wrong.

Re: [Discuss-gnuradio] New at GNU... linux question

Using Ubuntu is easier and installing all the dependencies on it is quicker. On Tue, May 12, 2009 at 3:26 PM, BlueEyeBirdy blueeyebi...@gmail.comwrote: I'm just starting out working on the GNU radio and I'm wondering is there any particular version of linux that is better? Also, does

[Discuss-gnuradio] Intermediate frequency question

Hi, If I am using RFX2400 then what is the IF frequency and can we change this to some other value? Correct me if the question I asked is wrong. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

[Discuss-gnuradio] Can we generate .py file with old versions of GRC

Hi, Is it possible to generate the .py files using the GRC or does it only create .xml files? I am using GRC 0.70 . Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Can we generate .py file with old versions of GRC

Mir Ali wrote: Hi, Is it possible to generate the .py files using the GRC or does it only create .xml files? I am using GRC 0.70 . Thanks, Ali ___ Discuss-gnuradio

Re: [Discuss-gnuradio] Pls help me out

Seems like it cannot find gnuradio. Are you sure you installed gnuradio correctly. Did you test the examples in gnuradio to see if the installation went right? Look into /usr/local/share/gnuradio/examples directory. If your installtion is correct then I suggest you check the ${prefix} in the

Re: [Discuss-gnuradio] questions in benchmark_tx

Look at the while loop in the code. Instead of reading from a file you can substitute data to be whatever you like. use the following option to find out how to send data read from a file. ./benchmark_tx.py -h This will display lots of options that you can use and one of them is the file option.

Re: [Discuss-gnuradio] Problem in Installing gnuradio-3.2_Please help

Did you try doing a clean install by removing the older version of gnuradio? On Sun, Mar 15, 2009 at 4:54 PM, Johnathan Corgan jcor...@corganenterprises.com wrote: On Sun, 2009-03-15 at 14:46 -0700, Somya Ajmera wrote: Hi , I am facing a problem in installing gnuradio-3.2. I was able to

Re: [Discuss-gnuradio] Pls help me out

You will find all you need at this website. http://www.gnu.org/software/gnuradio/ If you haven't looked here then I strongly recommend that you go through the wiki page and the installation instructions. Install it on your computer and start exploring it. If you have any questions to which you

[Discuss-gnuradio] Question regarding BBN 80211 bbn_slicer_cc

Hi, Can anyone give me the reference to the algorithm implemented for the slicer in bbn_80211? I understand how the code works but I want to know the basis behind this algorithm. Can I find any textbook or paper that supports this implementation? Thanks, Ali

[Discuss-gnuradio] A question about the program gr_fir_ccf_generic.cc

Hi, Can someone tell me how line 28 of code gr_fir_ccf_generic.cc works. line 28#if (2 == 4) According to me this condition will always fail isn't it? If it doesn't (I am clueless i think it does well i am no expert in C++) then can someone please enlighten me. Thanks, Ali

Re: [Discuss-gnuradio] problem installation gnuradio

I am not sure about this but a similar problem is posted in this link. http://www.mail-archive.com/bug-gu...@gnu.org/msg04660.html I hope this works for you. Ali On Fri, Mar 6, 2009 at 9:06 AM, Paulo Benatto bena...@gmail.com wrote: Hi list, I would like to install (compile) gnuradio in

Re: [Discuss-gnuradio] Any implementation of Spread Spectrum

Hi Johnathan, can you suggest me a place where I can find more information about the phase sync and the freq sync methods you used in your work. It will be of great help to me. Thanks, Ali. On Tue, Feb 3, 2009 at 6:45 PM, Johnathan Corgan jcor...@corganenterprises.com wrote: On Tue, Feb 3,

Re: [Discuss-gnuradio] `./ltmain.sh' not found

Thanks, that solves the problem. Ali On Wed, Feb 18, 2009 at 11:50 AM, Johnathan Corgan jcor...@corganenterprises.com wrote: On Tue, 2009-02-17 at 22:52 -0600, Mir Ali wrote: I installed the latest svn download of gnuradio on Ubuntu 8.10 without a hitch. When I try to install my Gnuradio

Re: [Discuss-gnuradio] GNURadio/USRP build issue

Check the output of ./configure. You will know why certain directories weren't built. If some dependencies are missing then install it. Fixing all the missed dependencies will certainly give you a usable gnuradio system. If you still have problems then send us more info so that we could be of

[Discuss-gnuradio] `./ltmain.sh' not found

Hi, I installed the latest svn download of gnuradio on Ubuntu 8.10 without a hitch. When I try to install my Gnuradio blocks on this installation I have the following error after the bootstrap. configure.ac:25: required file `./ltmain.sh' not found The installation works fine on a different

Re: [Discuss-gnuradio] What programs to use to display output from USRP

Thanks everyone, I will try these out. I am developing a DSSS system on gnuradio and hence the interest in looking at the output once the signal is spread using a gold code. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

[Discuss-gnuradio] How to use usrp_oscope and usrp_fft

Hi, Can someone tell me how to use usrp_oscope.py and usrp_fft.py? I tried looking for answers on the archive but couldn't find any. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] How to use usrp_oscope and usrp_fft

Thanks for all your help. I have one more question. At which point in the flowgraph does usrp_oscope capture and display the data. Thanks, Ali On Mon, Feb 9, 2009 at 9:26 PM, Chris Stankevitz cstankev...@toyon.comwrote: Mir Ali wrote: Can someone tell me how to use usrp_oscope.py

[Discuss-gnuradio] What programs to use to display output from USRP

Hi, Can anyone tell me what codes can I use to observe the signal out of usrp. Actually, when put in another way I want to know what can I do to validate the output that comes out of the USRP when any particular code is run. I looked up in the archive but found nothing that could help me.

[Discuss-gnuradio] Any implementation of Spread Spectrum

Hi, I want to know if ever any work was done on Spread Spectrum (DSSS) in Gnuradio? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] problem with USRP

Did u do as Eric asked you to? Download the latest gnuradio svn tar and follow the install instructions. On Wed, Jan 28, 2009 at 2:52 PM, Tushar Patel pateltusha...@gmail.comwrote: I found the linux/compiler.h file in other place, I gave the path in fusb_linux.cc and able to run all make,

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

These problems have already been dealt with before. Look in the mail archives and you will surely find the answers. On Wed, Jan 28, 2009 at 5:16 PM, Bari Bari barithegr...@gmail.com wrote: Thanks for ur guadiance I ahave already installed GNUradio on ubuntu 8.1 from Synaptic packages manager

[Discuss-gnuradio] How to check if more input is available on an input stream

Hi, I have a simple question. I have a block that has 2 input streams and the inputs are consumed at different rates. For each 1 input consumed on the first input stream N inputs are consumed in the second stream. The forecast function and set_multiple call of this block are as shown below,

Re: [Discuss-gnuradio] How to check if more input is available on an input stream

:44:39AM -0600, Mir Ali wrote: Hi, I have a simple question. I have a block that has 2 input streams and the inputs are consumed at different rates. For each 1 input consumed on the first input stream N inputs are consumed in the second stream. The forecast function and set_multiple call

[Discuss-gnuradio] A little help with this please......urgent

Hi, I am mailing this question again because, I didn't get enough help last time. :-) My intention here is very different from what gr.file_source() does, so please take a look at my explanation. I want to read a byte from a file and then put it on an input stream to a block. If you look at the

Re: [Discuss-gnuradio] How can I read byte by byte from a file and send it to input stream of a block.

if it is possible. Thanks, Ali On Mon, Dec 29, 2008 at 8:35 AM, Eric Blossom e...@comsec.com wrote: On Mon, Dec 29, 2008 at 03:48:15AM -0600, Mir Ali wrote: Hi, I want to read a byte from a file and send it to an input stream. Each time I read one byte from the file i want to send it onto the input

[Discuss-gnuradio] A little help with using a block in benchmark_tx..plz

Hi friends, I want to modify benchmark_tx.py so that I can send data over usrp such that I spread the data before transmitting. Since I took a wrong approach in working on this I have a little difficulty. I wrote a gnuradio C++ block that spreads each bit of data into a gold code sequence. The

[Discuss-gnuradio] Timing Recovery block MM..difficulty in understanding

Hi friends, I have a difficulty in relating the MM timing recovery block with the theory and algorithm presented in Timing Recovery in Digital Synchronous Data Receivers by Mueller and Muller. Can someone help me in understanding it or advice me on what to look for. I will be more than happy to

Re: [Discuss-gnuradio] using usrp to transmit data bits

Take a look at these files. All the files under usr/local/share/gnuradio/examples/Digital It contains a lot of examples and look into benchmark_tx.py and benchmark_rx.py particularly. On Wed, Dec 3, 2008 at 1:49 AM, Joreen Tan [EMAIL PROTECTED] wrote: Hi, I have been trying to figure out

[Discuss-gnuradio] Curious about USRP's durability

Hi friends, Can anyone tell me how durable the USRPs are? Can I put them ON for hours without worrying about damaging them in the process. I observed that the daughter boards heat up after a while though not to a very high temperature. I feel unplugging them frequently is a little unpleasant to

Re: [Discuss-gnuradio] Question about benchmark_tx

. Thanks again to all and to Tom Bye Ali On Sun, Nov 23, 2008 at 8:34 AM, Tom Rondeau [EMAIL PROTECTED] wrote: Mir Ali wrote: Hi, Can someone tell me to which device file is the data written to in benchmark_tx. Thanks Ali The benchmark_tx writes data to the USRP sink through

[Discuss-gnuradio] Question about benchmark_tx

Hi, Can someone tell me to which device file is the data written to in benchmark_tx. Thanks Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio