Monitoring GNU Radio outside of GNU Radio

2021-12-15 Thread J P
Hello all, Currently working on a project that requires me to use the GNU radio API to kick start gnu radio, and then a listen thread to collect message from the Zmq sink. Is there any recommendations/way, for gnu radio to send a message out when it has finished processing the stream, causing

Re: [Discuss-gnuradio] Building an OOT from the Tutorial

2019-05-20 Thread P C
l cpp square_ff ``` . That "gr-howto %" is part of the terminal prompt (saying that you are in the "gr-howto" directory), and shall not be inputted. Regards, Kyeong Su Shin ---- *보낸 사람:* P C 대신 Discuss-g

Re: [Discuss-gnuradio] Building an OOT from the Tutorial

2019-05-20 Thread P C
you install GNU Radio? Are you maybe having a different gr_modtool that remained from an older installation? Best regards, Marcus On Sun, 2019-05-19 at 15:19 -0500, P C wrote: I'm having a problem following the Tutorial at: https://wiki.gnuradio.org/index.php/OutOfTreeModules At the step

[Discuss-gnuradio] Building an OOT from the Tutorial

2019-05-19 Thread P C
I'm having a problem following the Tutorial at: https://wiki.gnuradio.org/index.php/OutOfTreeModules At the step where it says, "Creating the files", as instructed, I type the line: "gr-howto % gr_modtool add -t general -l cpp square_ff" But I get: "bash: gr-howto: command not found" I did

Re: [Discuss-gnuradio] Could This Be A Speed Problem? How Can I Make It Faster

2019-05-17 Thread P C
using existing libraries. Regards, Kyeong Su Shin ---- *보낸 사람:* P C 대신 Discuss-gnuradio *보낸 날짜:* 2019년 5월 17일 금요일 오전 4:13:43 *받는 사람:* GNURadio Discussion List *제목:* [Discuss-gnuradio] Could This Be A Speed Problem? Ho

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

2019-05-07 Thread P C
- Yes, I personally know of multiple. Albin's work of implementing volk kernels for TujaSDR, shared here on the list with some regularity, is an excellent example. On Wed, May 1, 2019 at 5:32 PM P C wrote: Problem Solved! .NOT! Tell me, is anyone running GNURadio on a Raspberry Pi (3-B)

Re: [Discuss-gnuradio] Installing GNURadio On Raspberry Pi

2019-05-07 Thread P C
on the list with some regularity, is an excellent example. On Wed, May 1, 2019 at 5:32 PM P C <mailto:pc...@yahoo.com>> wrote: Problem Solved! .NOT! Tell me, is anyone running GNURadio on a Raspberry Pi (3-B) using an RTL-SDR dongle? I thought I cured my problems then t

[Discuss-gnuradio] Installing GNURadio On Raspberry Pi

2019-04-23 Thread P C
First time posting. I'm not much of a Linux guy but I am trying to learn. Anyway, is there a "right way" to install GNURadio on a Raspberry Pi? I have been trying a lot of methods over the last few weeks and none of them is stable. Note, I have been using GRC on Windows for months so I have some

Re: [Discuss-gnuradio] Topic:PyQt4,gnu radio modules not found

2018-12-29 Thread Prasoon P
cally reconfigure the paths of > the dependencies to use those local packages. That does not happen if you > use the default Windows Command Prompt. > > Did you use the GNU Radio Command Prompt to execute your Python codes? > > Regards, > Kyeong su Shin > > > 2018. 1

[Discuss-gnuradio] Topic:PyQt4,gnu radio modules not found

2018-12-28 Thread Prasoon P
ontents of Discuss-gnuradio digest..." > > > Today's Topics: > >1. How's volk doing? (Albin Stig?) >2. PyQt4,gnu radio modules not found (Prasoon P) >3. Re: PyQt4,gnu radio modules not found (Michael Dickens) >4. Re: How's volk doing? (Michael

[Discuss-gnuradio] PyQt4,gnu radio modules not found

2018-12-28 Thread Prasoon P
Hi All, I'm new to GNU Radio. 1.I installed 3.7.13.4 version. 2.I tried running the generated python scripts from GNU Radio Companion as shown in tutorial. 3.But along with some syntax errors(which i corrected) , could see error:PyQt4,gnuradio modules not found.I installed PyQt4-4.11.4-gpl-Py2.7-Q

[Discuss-gnuradio] Python3

2018-12-24 Thread Prasoon P
Hi , I have installed the latest windows version of GNU radio(3.7.13.4).Would like to know if Python 3 is supported as of now? regards Prasoon ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnura

Re: [Discuss-gnuradio] Python/SWIG problems

2017-03-21 Thread Daniel P. Martin
03/20/2017 01:46 AM, Daniel P. Martin wrote: I found the answer to this post in the discuss-gnuradio archive. The answer was posted by Patrick Sathyanathan: [Discuss-gnuradio] OOT Module Attribute Error module object has no attribute 'blockname' <http://lists.gnu.org/archive/html/discus

Re: [Discuss-gnuradio] Python/SWIG problems

2017-03-20 Thread Daniel P. Martin
The problem I had was exactly as Patrick describs, as was the solution. I'd recommend putting this information on the new Wiki! Dan Martin On 3/19/17 10:11 PM, Daniel P. Martin wrote: I periodically run into problems with the Python/SWIG portion of my out-of-tree module builds. Wrapper

[Discuss-gnuradio] Python/SWIG problems

2017-03-19 Thread Daniel P. Martin
I periodically run into problems with the Python/SWIG portion of my out-of-tree module builds. Wrapper modules are built by swig but appear empty. I'm running Ubuntu 16.04. The error I get when I try to run a typical flowgraph that uses my "abc_module" from GRC is Using Volk machin

Re: [Discuss-gnuradio] Linking gr-digital in OOT Module (Success on OSX, fails on Linux)

2016-11-12 Thread Daniel P. Martin
Just today I had a problem like this in an OOT module on Ubuntu. I'd added a callback method to allow gnuradio-companion to set a changed parameter. I'm not sure if this is the way it's supposed to work, but I had to go back to the build directory and do a "cmake ../" to get swig to discover th

Re: [Discuss-gnuradio] Good CDMA codes

2016-07-15 Thread P
Good start point might be Gold code or Hadaramd code. Dne 15.7.2016 v 09:24 Johannes Demel napsal(a): > 20! > > On 15.07.2016 04:54, Henry Barton wrote: >> I’m designing a CDMA system with a spreading factor of 20. I recently >> wrote an app to go through all the binary permutations up to 2^20 an

[Discuss-gnuradio] gr_modtool change - remove command aliases?

2016-06-30 Thread P
Hi, there is now pending patch for gr_modtool wich among other thinks removes command aliases for this tool. The removal have 2 reasons. The new argument parsing system does not support aliases without penalty. The second is I does not like them. By my opinion command aliases are mostly confusing

[Discuss-gnuradio] Editing Existing Block

2016-01-26 Thread Salija P
Hi, I am doing a project in Error Control Coding, I am in need of creating new block or to modify the existing block with some modification. Is it possible to edit the existing block and modify? can anybody help? Thanks in advance. with Regards, Salija.P Thanks & Regards, Sali

[Discuss-gnuradio] QAM and Chunks_to_Symbol

2015-07-05 Thread Salija P
Hello, How can I specify symbol table and dimension for QAM in chunks_to_symbol block? which modulation is indicating in fsm_utils.py by orth2 orth4? Can anybody help me. I am new to this GnuRadio. ThankYou With Regards, Salija.P ___ Discuss

[Discuss-gnuradio] PCCC Decoder Combo- OFDM

2015-07-01 Thread Salija P
Hello, I am usin OFDM Modulation and demodulation along with PCCC encoder and PCCC decoder.. I am using QPSK modulation in OFDM. But Pccc decoder combo also using Demodulation parameter Constellation and Dimension. is it mean that demodulating twice? how can I use OFDM Block with PCCC decoder?

[Discuss-gnuradio] PCCC Decoder Combo- Ofdm

2015-07-01 Thread Salija P
Hello, I am usin OFDM Modulation and demodulation along with PCCC encoder and PCCC decoder.. I am using QPSK modulation in OFDM. But Pccc decoder combo also using Demodulation parameter Constellation and Dimension. is it mean that demodulating twice? how can I use OFDM Block with PCCC decoder?

[Discuss-gnuradio] Pccc Decoder with OFDM

2015-07-01 Thread Salija P
Hello, I am usin OFDM Modulation and demodulation along with PCCC encoder and PCCC decoder.. I am using QPSK modulation in OFDM. But Pccc decoder combo also using Demodulation parameter Constellation and Dimension. is it mean that demodulating twice? how can I use OFDM Block with PCCC decoder?

Re: [Discuss-gnuradio] Verifying Turbo encoder output (was: Re: (no subject)

2015-06-23 Thread Salija P
Thank you very much.. I got it With Regards, Salija.P On Tue, Jun 23, 2015 at 10:00 PM, Achilleas Anastasopoulos < anas...@umich.edu> wrote: > Salija, > > the notation > > interleaver(666) > > is one way to generate a random interleaver with a given seed (666 in this > case). > > The pcc

Re: [Discuss-gnuradio] Verifying Turbo encoder output (was: Re: (no subject))

2015-06-23 Thread Salija P
I am doing one project in Turbo code. I am trying to get the output in bits and verify with theoritical value.I would like to know the which intearving operation is performing in pccc encoder and decoder (like random interleaving, Matrix etc). what it mean by interleaver(block,666) ? ThankYou for

[Discuss-gnuradio] (no subject)

2015-06-23 Thread Salija P
Hello, I am using the blocks from gr-trellis (pccc encoder and pccc decoder combo). can you tell to me how to check the output of pccc encoder and pccc decoder. I want to see the output in bits. also how the operation interleaver (block,666). which kind of interleaving is performing.

[Discuss-gnuradio] (no subject)

2015-06-19 Thread Salija P
Hello all, I am working with turbo encoder and decoder. is there any method to check and verify the output of pccc encoder. I want to see the the output of pccc encoder for corresponding binary input. is there any way to do this? also any body can help me to explain interleaver operation in

[Discuss-gnuradio] finding information

2015-04-07 Thread sudarshan kumar m p
advance. with regards *sudarshan kumar m p* ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] OFDM mod-demod

2015-01-05 Thread sreena p h
hi I was doing OFDM modulation demodulation in following way file source ---> OFDM Mod --->  Virtual Source Virtual Sink ---> OFDM demod ---> File sink File source out is given in byte format. This system give output for bpsk, qpsk and 8psk modulation. and no output for QAM schemes. What changes a

[Discuss-gnuradio] audio sink issue

2014-12-15 Thread sreena p h
Hi I am trying to implement the following acoustic communication transmitter with PC File Source --> Packet encoder --> gmsk mod --> Rational resampler     --> Frequency Xlating FIR filter  --> comp to real --> audio sink Pc has inbuilt sound card. packet encoder is taking 8 samples per symbol,

Re: [Discuss-gnuradio] OFDM transmitter receiver

2014-08-25 Thread sreena p h
kernel.shmmax gave value 2147483648. Sreena___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] OFDM transmitter receiver

2014-08-25 Thread sreena p h
Hi I used the ofdm transmitter receiver blocks to create a simple system as shown in the attachment. I used the system parameters as those used in the example transmitter and receiver grcs. Now I get error that 'Detected a packet larger than max frame size (80 symbols)'. I would like to know how

Re: [Discuss-gnuradio] Cmake error

2014-08-22 Thread sreena p h
Thanks for the comment. I updated my GNURadio to 3.7.4 and new module installation went well. Thanks once again. Sreena___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] cmake error

2014-08-21 Thread sreena p h
Hi I tried to implement python OOT module as given in the new tutorial. Everything was fine till I reached the installation step. cmake command made the following error..  -- Build type not specified: defaulting to release. -- Boost version: 1.49.0 -- Found the following Boost libraries: --   fi

[Discuss-gnuradio] buffer size

2014-08-13 Thread sreena p h
Hi I ran OFDM transmitter in the grc example using 1024 point fft. following error was raised after running the grc. Please help to get out of this error..  thread[thread-per-block[7]: ]: Buffer too small for min_noutput_items Thanks in advance Regards Sreena

[Discuss-gnuradio] audio out put

2014-08-06 Thread sreena p h
Hi I am modulating a .wav audio file and transmitting using ofdm example using gnuradio. What should I dou to receive it as an audio file using the receive example.  If i write the receiver output to a wav file, it don't give the required audio.  Please help regards Sreena___

[Discuss-gnuradio] PSK modulator output

2014-06-25 Thread sreena p h
Hi What kind of sink can be used to analyse the outpt of a PSK modulator. I am transmitting a text file and is trying to retrieve and analyse using file sink.___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listin

[Discuss-gnuradio] Creating OOT module

2014-06-20 Thread sreena p h
Hi I have written a block in python and was trying to create an out of tree module as given in the gnuradio tutorial.  While using cmake ../ the following error occured.  CMake Error: CMake can not determine linker language for target:gnuradio-dec CMake Error: Cannot determine link language for t

[Discuss-gnuradio] testing block written in block

2014-06-18 Thread sreena p h
Hi  I'm new to GNU radio and is trying to develop my own block. I want to develop a block that intake a vector and out put sum of the vector elements. I used the out of tree module and followed tutorial using python code. How should be the arguments of blocks.vector_source_f to be given if i am

[Discuss-gnuradio] CMake error

2014-06-10 Thread sreena p h
Hi I got the following error while doing the building out-of-tree module example given in "http://gnuradio.org/redmine/projects/gnuradio/wiki/NewTutorials3".  ttl@ttl-HP-Z220-CMT-Workstation:~/Documents/sreena/gr-tutorial/build$ cmake ../ -- Build type not specified: defaulting to release. -- Bo

Re: [Discuss-gnuradio] memory leak problem with GNURadio/Python

2011-09-23 Thread Sanketh Kumar P
hey tom, PFA the output of gdb with back trace after the crash. i have used scipy/numpy arrays quite extensively. is that causing the crash?? please help me in debugging further. On Thu, Sep 22, 2011 at 9:20 PM, Tom Rondeau wrote: > On Thu, Sep 22, 2011 at 2:55 AM, Sanketh Kumar P >

Re: [Discuss-gnuradio] Re starting the USRP/USRP2 through terminal.

2011-09-22 Thread Sanketh Kumar P
why not try Ctrl+c instead of Ctrl+z ?? ctrl+z just stops the process right, whereas ctrl+c kills it. On Thu, Sep 22, 2011 at 6:38 PM, sumitstop wrote: > > Is there any method to restart the USRP/USRP2 using commands on the > terminal. > > For example I run benchmark programs for Tx and some time

[Discuss-gnuradio] memory leak problem with GNURadio/Python

2011-09-21 Thread Sanketh Kumar P
ges/gnuradio/gr/_gnuradio_core_gengen.so(+0x11c65d)[0x7f7bab42f65d] python(PyEval_EvalFrameEx+0x361)[0x4965f1] python(PyEval_EvalFrameEx+0xb2f)[0x496dbf] === Memory map: 0040-0062f000 r-xp 08:03 5899249 /usr/bin/python2.7 0082e000-0082f000 r--p 0022e000 08:03 5899249 /us

[Discuss-gnuradio] USRP2: Ethernet port doesn't work

2011-03-11 Thread Tommaso P
Hi, i'm trying to connect the USRP2 by the Ethernet port. It seems as if the port doesn't work. The firmware is properly loaded (D and F lights are on) and the network is properly configurated, but when i try to sniff the USRP2 ethernet port, no data is generated/received. And no light upon the

Re: [Discuss-gnuradio] How to run two graphs simultaneously

2009-10-10 Thread Jonathan P Jacky
On Sat, 10 Oct 2009, Ying Dai wrote: I want to run two graph simultaneously. ... Like this? Here are some screen shots: http://staff.washington.edu/jon/gr-osx/gr-signoise.html Can anyone show me some example codes? The code is linked to the page above. Jon Jacky ___

[Discuss-gnuradio] fusb_darwin.cc compile fails on Mac OS X Snow Leopard with -arch x86_64

2009-10-08 Thread Jonathan P Jacky
I am building from gnuradio-3.2.2.tar from Trac on an iMac9,1 with an Intel Core 2 Duo running Mac OS X 10.6.1 (Snow Leopard), XCode version 3.2, gcc version 4.2.1. I am following the directions at https://radioware.nd.edu/documentation/install-guides/mac-os-x and just got all the prerequisites

Re: [Discuss-gnuradio] Question about USRP2

2008-11-15 Thread George P Nychis
Eek, you didn't specify you're trying to install under Cygwin :) From Matt's USRP2 announcement: "At this time, the USRP2 is in "beta release" state. Not all of the software and/or features are currently ready for production use. The USRP2 is initially supported on Linux, and we anticipate that

Re: [Discuss-gnuradio] exploring the GNURadio and USRP with benchmark.py

2008-11-11 Thread George P Nychis
> Hi, dear all, > > I've just installed GNURadio and Cygwin in two computers, now I'd like to > explore them with the experiment using benchmark_rx.py and > benchmark_tx.py. I tried to type benchmark_rx.py -f 900M in one computer, > but I got 'usb_contral_msg failed' and a warning 'Failed to ena

Re: [Discuss-gnuradio] how to access a variable in Verilog code from Python or C++

2008-11-10 Thread George P Nychis
> Thank you for your help, Eric. From what you told me above, I reached two > conclusions: 1, reading RSSI will never happen on time, it is useless.2, > the only way out is to use the inband code, am I right? > > So, could you tell me whether the inband code is reliable, if it is, I > will use th

Re: [Discuss-gnuradio] how to access a variable in Verilog code from Python or C++

2008-11-10 Thread George P Nychis
In short, there is no supported mechanism in place to read it currently. There was work by myself and others to enable a richer interface using m-blocks which transferred this value to the host (where you could read it), but a lack of support to get my work interfaced to the rest of GNU Radio (p

Re: [Discuss-gnuradio] S-l-o-w start up (maybe related to: Catching mouse clicks in fft_sink)

2008-10-25 Thread George P Nychis
> It is probably unrelated to the mouse behavuour but I'm experiencing > *very* slow start up of my very simple app. The gadgets at the right hand > side of the fft panel for setting the units, etc. aren't appearing and > neither are the menu and status bars. I have done a fresh build from the >

Re: [Discuss-gnuradio] GNU Radio eye candy

2008-10-03 Thread Jonathan P Jacky
On Sun, 28 Sep 2008, Philip Balister wrote: Does anyone have a gnu radio program that provides eye candy, without needing a USRP? Some kind of graphic display would be great. I put together this little demo to confirm that our installation was working: http://staff.washington.edu/jon/gr-osx/

Re: [Discuss-gnuradio] 3rd party software

2008-09-11 Thread George P Nychis
> My impression is that SVN+trac is working pretty well. My experience with > git has been everything but positive; maybe because I _still_ haven't > found that simple, elegant reference that explains it well, but I'm just > not a fan. Plus it would be nice to keep the same model as the existing >

Re: [Discuss-gnuradio] 3rd party software

2008-09-11 Thread George P Nychis
> > The slightly longer response: > > I think these are all great ideas, and I think they'd be a valuable > contribution to the GNU Radio community. CPAN (The Comprehensive Perl > Archive Network) and CEAN (the Comprehensive Erlang Archive Network) are > but two implementations of similar ide

[Discuss-gnuradio] MRFM (Magnetic Resonance Force Microscope and GNU Radio, preprint available

2008-09-10 Thread Jonathan P Jacky
We have completed the paper Digital control of force microscope cantilevers using a field programmable gate array by Jonathan P. Jacky, Joseph L. Garbini, Matthew Ettus, John A. Sidles We have submitted it to Review of Scientific Instruments. The preprint (abstract and PDF of the full

RE: [Discuss-gnuradio] Posted: Enhanced GMSK demodulator

2008-06-06 Thread Long, Jeffrey P.
Clark [mailto:[EMAIL PROTECTED] Sent: Friday, June 06, 2008 12:27 PM To: Long, Jeffrey P. Cc: gnuradio mailing list Subject: Re: [Discuss-gnuradio] Posted: Enhanced GMSK demodulator On Fri, Jun 6, 2008 at 9:30 AM, Long, Jeffrey P. <[EMAIL PROTECTED]> wrote: > Steven- > > Did you ac

RE: [Discuss-gnuradio] gsm gmsk demodulation

2008-06-06 Thread Long, Jeffrey P.
I agree with Steven, while there are definitely more "optimal" solutions like MLSE they don't always make sense for every application. GSM phones and the like have dedicated DSP resources to run a Viterbi algorithm but is this doable on the typical gnu users computer? I will defer to the experts on

RE: [Discuss-gnuradio] Posted: Enhanced GMSK demodulator

2008-06-06 Thread Long, Jeffrey P.
Steven- Did you actually find that the decision threshold needs to be biased? I actually implemented the 2 bit differential detector on a custom asic that was targeted at streaming audio(in 2004) and during the simulations I found that moving the bias point did very little for performance. Maybe i

Re: [Discuss-gnuradio] MRFM (Magnetic Resonance Force Microsocopy) andGNU Radio

2008-05-03 Thread Jonathan P Jacky
Jeff - I'm curious .. what do use the 'biquad filters' for? I assume you mean that you've implemented a 4th order IIR filter? If so that would mean somewhat non-linear phase depending on the IIR design type. What type are you using? Elliptic? Other? The pair of cascaded biquadratic filt

[Discuss-gnuradio] MRFM (Magnetic Resonance Force Microsocopy) and GNU Radio

2008-05-02 Thread Jonathan P Jacky
The UW Quantum System Engineering Laboratory has written code for Magnetic Resonance Force Microscopy (MRFM). The code is available from http://staff.washington.edu/~jon/gr-mrfm/ Some of the code might be useful to other GNU Radio users. On the FPGA side, there is a 2-stage biquad filter wit

RE: [Discuss-gnuradio] help with tuning RFX2400 MIMO_b, weird RX results

2008-04-29 Thread Long, Jeffrey P.
-Original Message- From: George Nychis [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 29, 2008 11:10 AM To: Long, Jeffrey P. Cc: Eric Blossom; discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] help with tuning RFX2400 MIMO_b,weird RX results I'm getting a little closer...

RE: [Discuss-gnuradio] help with tuning RFX2400 MIMO_b, weird RX results

2008-04-29 Thread Long, Jeffrey P.
Kind of looks like it is clipping to me and possibly some DC offset problems. -Jeff -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Nychis Sent: Tuesday, April 29, 2008 10:13 AM To: Eric Blossom Cc: discuss-gnuradio@gnu.org Subject: Re: [Discuss-

RE: [Discuss-gnuradio] M&M impl, its parameters, and why does itwork for GMSK?

2008-04-11 Thread Long, Jeffrey P.
Thanks I will take a look. Jeff -Original Message- From: Bob McGwier [mailto:[EMAIL PROTECTED] Sent: Friday, April 11, 2008 2:09 PM To: Long, Jeffrey P. Cc: George Nychis; gnuradio mailing list Subject: Re: [Discuss-gnuradio] M&M impl, its parameters, and why does itwork for

RE: [Discuss-gnuradio] M&M impl, its parameters, and why does itwork for GMSK?

2008-04-11 Thread Long, Jeffrey P.
While we are on the topic of clock recovery and someone more knowledgeable than me is reading :) I would like to pose a question to Bob. How might one do clock recovery on a M-ary CPM signal? It sounds like a ML sequence technique might be an option but is there a simpler ad-hoc technique that work

RE: [Discuss-gnuradio] M&M impl, its parameters, and why does it work for GMSK?

2008-04-11 Thread Long, Jeffrey P.
, April 11, 2008 1:15 PM To: Long, Jeffrey P. Cc: discuss-gnuradio@gnu.org; Thomas Schmid Subject: Re: [Discuss-gnuradio] M&M impl, its parameters,and why does it work for GMSK? Thanks for the response. You're correct, it can work with complex or real input. GMSK and the MSK implementation

RE: [Discuss-gnuradio] M&M impl, its parameters, and why does it work for GMSK?

2008-04-11 Thread Long, Jeffrey P.
I could be wrong but I believe that block can work with a complex input or a real input. For the case of GMSK/MSK it should work on a real signal derived from the change in phase of the IQ(use gr_quadrature_demod_cf) not the IQ itself as is the case in regular QPSK. I believe the GMSK demo shows th

RE: [Discuss-gnuradio] Matlab interface to USRP

2008-04-09 Thread Long, Jeffrey P.
more two cents I love Matlab and I use it every day but there is a time and a place for it and it is not as an computational engine for a software defined radio. Signal processing for an SDR is just not the right use for it. It just can't keep up. If you were generating complied code in simulink f

RE: [Discuss-gnuradio] a call for a better wiki

2008-03-21 Thread Long, Jeffrey P.
Hi all- I am relatively new to the list but I have been reading and watching since 2005. Only recently have I been able to start using GNU radio to do any "serious" work here at Mitre. The biggest issue that everyone here complains of is documentation, so seeing the topic come up I had to put my

Re: [Discuss-gnuradio] Mac OS X Build problem

2008-03-19 Thread Jonathan P Jacky
Here's another data point. I am using OS X 10.4.10 on a PPC Mac with Python 2.3.5, the one that comes with OS X 10.4. I have built GNU Radio from trunk recently with no problems. In order to avoid difficulties I have heard about on this list and elsewhere, I have not installed another Python.

[Discuss-gnuradio] Transmitting and Receiving Simple Sinosoidal singal over RFX2400 board

2008-01-31 Thread Patel, Tushar P
I am attempting to transmit a simple sinusoidal signal generated by GNU radio. The signal would be transmitted by RFX 2400 connected to one computer and the transmitted signal would be received by RFX2400 connected to another computer. Basically the signal would be sent wirelessly from one compu

Re: [Discuss-gnuradio] Modulation Technique

2007-12-01 Thread George P Nychis
The "Exploring GNU Radio" document is a great start to understanding the separation of GNU Radio and the USRP and each of their functions. http://www.gnu.org/software/gnuradio/doc/exploring-gnuradio.html - George > On Dec 1, 2007 4:18 PM, abhishek jaiswal <[EMAIL PROTECTED]> > wrote: >> Hello

Re: [Discuss-gnuradio] Typo on UdevConfig page in wiki?

2007-11-11 Thread George P Nychis
> Hi, > > How we can edit wiki pages ? What is the login edit permission accounts?. > login: guest password: gnuradio - George ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Recovering x(t) from IQ samples

2007-08-18 Thread Jonathan P Jacky
On Sat, 18 Aug 2007, Jens Elsner wrote: On Fri, Aug 17, 2007 at 05:23:06PM -0600, Bahn William L Civ USAFA/DFCS wrote: Q1) One of the formats in which I can send data to the USRP is as IQ data. What does the USRP do with IQ data pairs? In the USRP documentation there is a block diagram of th

Re: [Discuss-gnuradio] FPGA .rbf file

2007-08-01 Thread Michael P Buettner
On Tue, May 08, 2007 at 10:59:33AM -0400, Steven Clark wrote: > Hi all- > > I noticed that both the usrp.source and usrp.sink blocks have the ability to > specify the .rbf bit file for the FPGA. > > Does that mean that in the following: > > > self.usrp_in = usrp.source_c (fpga_filename="file_

Re: [Discuss-gnuradio] FPGA Modifications for a Continuous Carrier?

2007-07-31 Thread Michael P Buettner
looked at a number of examples that have no overruns using the normal .rbf file, and when I swap in my .rbf the continuous overruns invariably result. It appears that no data is arriving at the host, and the received samples are stopped completely somewhere. Does anyone have any insight as t

Re: [Discuss-gnuradio] FPGA Modifications for a Continuous Carrier?

2007-07-31 Thread Michael P Buettner
On Tue, 24 Jul 2007, Brian Padalino wrote: My question is, would it be possible to modify the FPGA so that the default behavior is to transmit the carrier until it receives buffers for transmit? This should reduce the latency by using the USB half duplex, keeping the TX buffers empty which

Re: [Discuss-gnuradio] FPGA Modifications for a Continuous Carrier?

2007-07-24 Thread Michael P Buettner
On Tue, 24 Jul 2007, Brian Padalino wrote: You can see how at line 72 there is a case statement and if the TX FIFO is empty, the values are set to be zero. I am not 100% sure, but I believe if you change these values to be non-zero you will get a carrier to come out. Moreover, once the TX FIF

[Discuss-gnuradio] FPGA Modifications for a Continuous Carrier?

2007-07-24 Thread Michael P Buettner
Hello folks. I am currently looking at using the USRP for interaction with RFID tags. The crux of the problem is that I need to transmit a continuous carrier wave to power the tag, but I also need very low latency with respect to receiving a tag signal and responding to that signal (< 500us.

Re: [Discuss-gnuradio] VT receives NSF grant for SDR security

2006-12-19 Thread David P. Reed
Greg - I think the concept of "software defined radio" being explored by the VT folks is a concept I persoally refer to as "crippled software radio". It is based on a discredited theory of "security" that was called a "secure kernel" when I was a student 30 years ago. In other words - that th

[Discuss-gnuradio] Fedora Core has updated swig in its testing version

2006-11-28 Thread David P. Reed
I bugzilla'ed the version of swig that doesn't support gnuradio, and they've rolled it into the "rawhide" version. So one could, I suppose, now get it via yum by including the testing repo. Original Message Date: Tue, 28 Nov 2006 04:11:40 -0500 From: [EMAIL PROTECTED] To

[Discuss-gnuradio] re: make check is failing

2006-11-24 Thread David P. Reed
the qa_feval problem is due to an old version of swig. See my bug report #106 on the TRAC system. It needs to be version 1.3.31 or later. Fedora, for example, is currently including 1.3.29, which fails to work. ___ Discuss-gnuradio mailing

Re: [Discuss-gnuradio] x86_64 path proposal

2006-11-22 Thread David P. Reed
Eric - A very clean fix for the path problem on Fedora x86_64 machines is as follows: in each directory in site-packages/gnuradio modify the __init__.py file to include the following two lines as the first lines after the comments: import pkgutil __path__ = pkgutil.extend_path(__path__, __n

Re: [Discuss-gnuradio] x86_64 gr_feval problem RESOLVED for me

2006-11-22 Thread David P. Reed
Eric - Though Fedora Core 6 has swig 1.3.29 as its current release level, I updated swig on my machine to swig-1.3.31 from swig.org. This fixed the gr_feval bug on my x86_64 machine. I put in a ticket on this (106). But someone who doesn't re run bootstrap in the build won't discover the

Re: [Discuss-gnuradio] x86_64 gr_feval problem

2006-11-22 Thread David P. Reed
Eric - here is the simplest test I can give, it fails by printing "Fired = false" and nothing else. from gnuradio import gr, gr_unittest class my_feval(gr.feval): def __init__(self): gr.feval.__init__(self) self.fired = False def eval(self): print "firing"

Re: [Discuss-gnuradio] x86_64 issues I'd like input about.

2006-11-21 Thread David P. Reed
ge: 4 Date: Tue, 21 Nov 2006 09:57:52 +0100 From: "Trond Danielsen" <[EMAIL PROTECTED]> Subject: Re: [Discuss-gnuradio] x86_64 issues I'd like input about. To: discuss-gnuradio@gnu.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="utf-8&quo

[Discuss-gnuradio] FC5 usrp install

2006-08-21 Thread David P. Reed
Apparently I am (most of us are) not allowed to update the wiki directly. So here is a paragraph for Fedora Core 5 and 6 on the usrp install page. I think it is correct for Fedora Core 4 as well. Fedora Core 5 and 6 use "udev" rather than "ho

[Discuss-gnuradio] FC5 x86_64

2006-08-16 Thread David P. Reed
OK, after being inactive in tinkering with GR for months (my students have been using gr, but I haven't been hacking myself) I decided to install the latest SVN on my x86_64 laptop, running under FC5. There were two distro-specific problems I encountered, and I don't know if anyone wants to in

[Discuss-gnuradio] Fixed plot.py and revised fftsink.py for Mac OS X

2005-07-28 Thread Jonathan P Jacky
I have fixed plot.py and revised fftsink.py so they work with Mac OS X. To fix plot.py, in PlotCanvas.__init__ I changed this: if wx.Platform != "__WXMAC__": self.OnSize(None) # sets the initial size based on client size To this: self.OnSize(None) # UNCONDITIONAL, needed to create s

[Discuss-gnuradio] Revised scopesink.py for Mac OS X

2005-07-28 Thread Jonathan P Jacky
Attached is scopesink-nscans.py, a version of scopesink.py from CVS (on May 11) that I revised so it will run on Mac OS X. These changes are in addition to the ones described by Eric in http://lists.gnu.org/archive/html/discuss-gnuradio/2005-05/msg00137.html The unrevised scopesink.py does no

[Discuss-gnuradio] Gig-E alternatives

2005-06-22 Thread David P. Reed
Though GigE sounds like a good idea to pursue, has anyone thought about using 2 or more USB 2 interfaces as an alternative? I don't know what the typical controller interfaces can handle, but I see three on my AMD64-based laptop, plus a firewire interface - that's potentially about 1.6 Gb/sec

[Discuss-gnuradio] "Tempest" for LCD displays?

2005-06-19 Thread David P. Reed
I find it amusing that the idea of using a CRT output to radiate AM and FM band signals is called "Tempest", since it is really anti-Tempest (or inverse-Tempest) (the US gov't security specs called Tempest specs when I was working on DoD security research in the early '70s were designed to prev

[Discuss-gnuradio] Suggestions regarding a frequency reference

2005-06-14 Thread David P. Reed
In interfacing a new 5 GHz up/downconverter to the USRP (my summer project), I find that I need a 40 MHz frequency reference to drive a PLL in the chip. My first prototype will interface using the Basic Rx/Tx daughterboards, and it occurs to me that I can probably use one of the DAC clocks f

Re: [Discuss-gnuradio] accuracy problem?

2005-06-02 Thread David P. Reed
Eric Blossom wrote: On Wed, Jun 01, 2005 at 04:12:16PM -0400, David P. Reed wrote: I'm trying to install the gnuradio software from CVS on Fedora Core 3 on an AMD64 (x86_64) laptop (and python 2.3). Aside from annoying pathname bugs and quirks with FFTW linking, which I will r

[Discuss-gnuradio] accuracy problem?

2005-06-01 Thread David P. Reed
I'm trying to install the gnuradio software from CVS on Fedora Core 3 on an AMD64 (x86_64) laptop (and python 2.3). Aside from annoying pathname bugs and quirks with FFTW linking, which I will report separately, I get the following error when testing gnuradio-core, where a unittest fails. A

[Discuss-gnuradio] scopesink.py and wxPython on Mac OS X

2005-05-31 Thread Jonathan P Jacky
I find I still have to tweak the new scopesink.py a bit to get it to work on Mac OS X, even after the recent corrections and additions: http://lists.gnu.org/archive/html/discuss-gnuradio/2005-05/msg00137.html It seems that the wxPython graphics can't quite keep up with the flow graph, even with