Re: [Discuss-gnuradio] config.conf location

2012-09-25 Thread Pol Henarejos
Dear Tom, I backtraced this call and there is no implementation of gnuradio preference file. When it is called the architecture, it returns gr_prefs::singleton()-get_string(audio, audio_module, auto); Thus, get_string is implemented as this: const std::string gr_prefs::get_string(const

[Discuss-gnuradio] [gnuradio]N210 Probe Problems

2012-09-25 Thread Deddi Hariprawira
Hi All, I have USRP N210 but I cannot probe it using usrp2_probe. when I am trying capture packet, it is said No USRPs found on interface eth0 * * *sudo usrp2_rx_cfile.py -f 94400 test* *Traceback (most recent call last):* * File /usr/local/bin/usrp2_rx_cfile.py, line 139, in module* *

[Discuss-gnuradio] ctypes.ArgumentError: argument 1: type 'exceptions.TypeError': wrong type on OS X 10.8.2 in GL.glNewList

2012-09-25 Thread Gian Luca Decurtins
Hi all I've had success compiling gnuradio from source on OS X 10.8.2[1]. Now I'm facing the issue mentioned in the subject. There is already an open bug @ http://sourceforge.net/tracker/?func=detailaid=3526361group_id=5988atid=105988 It's the same with my installation, but I'm using OS X

Re: [Discuss-gnuradio] using general_work when output rate is not fixed

2012-09-25 Thread Rahman, Muhammad Mahboob Ur
Hi Tom All, I am now doing consume_each(noutput_items) but my problem is not solved yet. I have also made sure that my code effectively sends one sob tag and one eob tag per burst of samples. Questions about new experiment: Now, I have created yet another simple experiment whose flow-graph is

Re: [Discuss-gnuradio] Video Transmission over USRP

2012-09-25 Thread priyankar bhattacharjee
Can i use my own system as both a source as well as sink to test the same ? It is because i do not have two terminals at my disposal for the time being. I am proposing the following model : TX FlowGraph: vlc Streaming(UDP) (My PC?) - GR UDP Source - GR TX blocks RX FlowGraph:

Re: [Discuss-gnuradio] not able to play fm receiver application

2012-09-25 Thread Sahoo, Anirudha
I contacted Ettus Tech support. They said that basicRx card samples at higher Nyquist region. So, it requires external RF gain and filtering component. Can someone suggest such a RF component which I can buy off-the-shelf which can work with basicRx card? Thanks. -Original Message-

Re: [Discuss-gnuradio] not able to play fm receiver application

2012-09-25 Thread Marcus D. Leech
I contacted Ettus Tech support. They said that basicRx card samples at higher Nyquist region. So, it requires external RF gain and filtering component. Can someone suggest such a RF component which I can buy off-the-shelf which can work with basicRx card? Thanks. One of these:

[Discuss-gnuradio] Fw: Using two daughter boards in USRP1.

2012-09-25 Thread Sajjad Safdar
Hello, I have read in your frequently ask questions that we may record data from two daughter boards in one USRP. But i have the same question but in different way. Can we use one daughter card as sender and the other as receiver, rather using two USRP for this purpose. Best Regards. -

[Discuss-gnuradio] How to capture the Rx data using uhd_rx_cfile and agree with the uhd_fft Scope mode data

2012-09-25 Thread LD Zhang
Hello community, I am trying to use the uhd_rx_cfile command to capture some rx samples in the hope of recovering what I see as streaming samples in the uhd_fft Scope mode display. Since I am really new to GR+USRP, I have a couple of difficulties: 1. The uhd_rx_cfile command help menu does not

Re: [Discuss-gnuradio] Fw: Using two daughter boards in USRP1.

2012-09-25 Thread Josh Blum
Can we use one daughter card as sender and the other as receiver, rather using two USRP for this purpose. USRP1 may have 2 transmitter and 2 receiver frontends. You may transmit from either frontend and receive from either frontend. Any combination should be OK. Cheers, -josh Best

Re: [Discuss-gnuradio] How to capture the Rx data using uhd_rx_cfile and agree with the uhd_fft Scope mode data

2012-09-25 Thread Josh Blum
On 09/25/2012 07:29 PM, LD Zhang wrote: Hello community, I am trying to use the uhd_rx_cfile command to capture some rx samples in the hope of recovering what I see as streaming samples in the uhd_fft Scope mode display. Since I am really new to GR+USRP, I have a couple of difficulties:

[Discuss-gnuradio] Second CFP for ICCPS 2013: 4th ACM/IEEE International Conference on Cyber-Physical Systems

2012-09-25 Thread Hongwei Zhang
CALL FOR PAPERS ACM/IEEE ICCPS 2013 Philadelphia, USA April 8-11, 2013 http://cesg.tamu.edu/iccps2013/ Cyber-physical systems are systems with a coupling of the cyber aspects of computing and communications with the physical aspects of dynamics and engineering that must abide by

[Discuss-gnuradio] Message passing - PSDU block and sink connection

2012-09-25 Thread Jose Torres Diaz
Hi, I've just finished my block that generates PSDUs and then, it transmits downstream subscribers using message passing mechanism. I am using as a sink Extras: Blob to Socket, but when I run my flowgraph in GNU Radio Companion (after connect my new block and the sink), I got the following error:

Re: [Discuss-gnuradio] Message passing - PSDU block and sink connection

2012-09-25 Thread Josh Blum
On 09/26/2012 12:47 AM, Jose Torres Diaz wrote: Hi, I've just finished my block that generates PSDUs and then, it transmits downstream subscribers using message passing mechanism. I am using as a sink Extras: Blob to Socket, but when I run my flowgraph in GNU Radio Companion (after

Re: [Discuss-gnuradio] Message passing - PSDU block and sink connection

2012-09-25 Thread Jose Torres Diaz
Hi Josh, I've attached the xml file for my_block.xml. I don't have a .i file (like my_block.i), because it is using the extras_blobs.i file. I've attached for you extras_blob.i and I added some lines to that .i file in order to include my_block. All the example is based on blob to stream and

Re: [Discuss-gnuradio] How to capture the Rx data using uhd_rx_cfile and agree with the uhd_fft Scope mode data

2012-09-25 Thread LD Zhang
Hi, I did try and made a GRC example of using a USRP Source and a fft sink, scope sink, and a file sink to test out the idea. When looking at the scope sink, the data is about +/- 2x10^-4. I changed the gain of the USRP source block to 20 dB. But nothing happened to the signal amplitude. How is

[Discuss-gnuradio] USRP2 Reception Problem

2012-09-25 Thread Bilal
I m using USRP2,I have configured usrp2 and tested uhd_usrp_probe,uhd_siggen_gui and uhd_fft all works fine. Now i want to make my own program like uhd_fft but there is a problem that the terminal prompt returns right after i execute the program with notification

[Discuss-gnuradio] Internship opportunity to work with USRP2 (CSIRO, Australia)

2012-09-25 Thread Wen.Hu
Internship opportunities in GNU software-defined radio application development (Stipend AU$600 to AU$1,200 per week) CSIRO's Autonomous System lab is a premiere research centre in pervasive computing and field robotics. AS lab is seeking a couple of talented individuals to join us for a