[Discuss-gnuradio] Problem using benchmark_rx.py with XCVR2450 Transceivers

Hello I'm trying to utilize benchmark_tx.py and benchmark_rx.py using 2 USRPs with XCVR2450 Transceivers. When I consider a bit rate equal or greater than 124k everything works well. With bit rates smaller than 124k only the ./benchmark_tx.py can run, while ./benchmark_rx.py can't receive any sig

Re: [Discuss-gnuradio] USRP2 FM TX and FM RX working together

This is my grc generated file. It is probably that now the sample rates are not adjusted because I tried everything to make my receiver work. I would appreciate any help. I remind you that modulator and demodulator work when they are alone but they don't when running together. Many thanks, Jorge.

[Discuss-gnuradio] Help: Switching usrp to capture different frequencies alternately using python thread.

Hi everyone , I have been trying an experiment in trying to capture different frequencies using python thread to alternately capture different frequencies. what i am trying is like this [ pseudo code ]. #freq_list = [ '222','787'] 1: capture 222 using usrp_rx_cfile.py... by supplying freq =

Re: [Discuss-gnuradio] General question concerning usrp & audio

Hi Tom, The magnitude of a complex sine wave is constant so you can not hear it. If you want to hear a tone you have to listen to either the real or the imaginary part, i.e. use complex_to_real or complex_to_float. You can easily test it by connecting a complex signal source to the audio sink via

Re: [Discuss-gnuradio] General question concerning usrp & audio

Thanks a lot for your help! file2.py now looks like this: class soundcheck(gr.top_block):    def __init__(self): gr.top_block.__init__(self) self.decim_rate = 256 self.u = usrp.source_c(0, self.decim_rate) self.rx_subdev_spec = usrp.pick_rx_subdevice(self.u) self.sub

Re: [Discuss-gnuradio] Is WUBI (Lucid) a viable environment for GNU-Radio (3.2.2) ?

Thanks Eric, will do though I used the sealed one given by Ettus but stranger things have happened. I had also wondered about whether the USB ports on my laptop were running fast enough and before I posted, have confirmed "Enhanced" in the Host Controller description. I wonder if U is underu

Re: [Discuss-gnuradio] GNU Radio and usrp_standard.h: No such file or directory

On Tue, Sep 21, 2010 at 10:20 AM, Fabrizio Tappero wrote: > Dear All, > I'd like to add a little piece of information about this problem. > if I try to compile the previously mentioned code with: > g++ usrp_test_c++.cpp -o testusrp `pkg-config --cflags usrp` > `pkg-config --libs usrp` > > and I ch

Re: [Discuss-gnuradio] USRP2 FM TX and FM RX working together

Hi Jorge, Can you copy the .grc file you created? > Hello community! > > I initiated myself in GNU radio two weeks ago and I am learning as fast as > I > can. To begin with, I decided to play with GRC and my URSP2. > I successfully built a FM modulator that works fine. > I successfully built a FM

[Discuss-gnuradio] UHD transmit issues solved

Recently, I've started two threads involving problems using UHD. It turns out they were both on the transmit side and I stumbled onto a solution for both: way smaller send_buff_size. Like 50,000 bytes instead of 50

Re: [Discuss-gnuradio] UHD and General purpose pins

On 09/21/2010 01:33 AM, Per Zetterberg wrote: Hi All, Is there any support for setting general purpose pins in UHD ? Or even You can get access to the daughter board interface class which can control all of the daughter board peripherals: http://www.ettus.com/uhd_docs/doxygen/html/classuhd_

[Discuss-gnuradio] USRP2 FM TX and FM RX working together

Hello community! I initiated myself in GNU radio two weeks ago and I am learning as fast as I can. To begin with, I decided to play with GRC and my URSP2. I successfully built a FM modulator that works fine. I successfully built a FM demodulator that works fine. But there are still several things

Re: [Discuss-gnuradio] Setting buffer size when using UHD

On 09/21/2010 01:30 AM, Per Zetterberg wrote: I read the page you refer to but I don't understand. Is this correct ? uhd::device_addr_t dev_addr; dev_addr["addr"] = "192.168.10.11 192.168.20.11"; dev_addr["addr"] = "192.168.10.11 192.168.20.11"; dev_addr["recv_buff_size"] = "1e4"; d_mdev=uhd::

Re: [Discuss-gnuradio] Is WUBI (Lucid) a viable environment for GNU-Radio (3.2.2) ?

On Tue, Sep 21, 2010 at 08:24:53PM +1200, John Shields wrote: > I recently purchased a USRP and have a fresh install of WUBI (HP Pavillion > DV5 , Windows Home Vista) and used > gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall to install things. > > I passed 'make check' correctly > > I have m

Re: [Discuss-gnuradio] Problem with installation - grc does not start

The default behavior is to install the blocks to /share/gnuradio/grc/blocks/ GRC knows to look in that path, so you must have done something strange to your gnuradio installation. If you know where you installed the xml block files. You can set the path in the following two ways (copied from t

Re: [Discuss-gnuradio] GNU Radio and usrp_standard.h: No such file or directory

Dear All, I'd like to add a little piece of information about this problem. if I try to compile the previously mentioned code with: g++ usrp_test_c++.cpp -o testusrp `pkg-config --cflags usrp` `pkg-config --libs usrp` and I change: #include "usrp_standard.h" in: #include "usrp/usrp_standard.h"

[Discuss-gnuradio] Regarding the UCLA Zigbee library

Hello all However i made my self successful in installing UCLA Zigbee library but now i am unable to execute the examples available in ucla_zigbee_phy/scr/examples The error which prompted is Traceback (most recent call last): Flile "file name", line 47, in from gnu radio import

Re: [Discuss-gnuradio] General question concerning usrp & audio

On Tue, Sep 21, 2010 at 5:09 AM, Thomas Seidel wrote: > hHey! > > I am just playing around with gnuradio and the usrp stuff and want to achieve > the following: > > file1.py > > [...] > self.u = usrp.sink_c(0, 64) > self.src gr.sig_source_c(48000, gr.GR_SIN_WAVE, 400, 1) > > self.connect(self.src

[Discuss-gnuradio] Problem with installation - grc does not start

Hi, I've installed gnuradio following this guide: http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg26238.html While installing everything was fine and I had no error messages. After the installation I tried to start grc and got the error messages posted below. In http://www.ruby-forum.com

[Discuss-gnuradio] Patch to fix crash on Mac OS X, when calling MemoryDC.GetMultiLineTextExtent with no associated bitmap

Hi, Here is a patch to fix an issue with gr-wxgui running on Mac OS X, where calls to MemoryDC.GetMultiLineTextExtent fails if there is no bitmap associated with the MemoryDC, prior to calls to GetMultiLineTextExtent. The workaround is to create a 1x1 bitmap, get the text extent, and the

[Discuss-gnuradio] UHD and General purpose pins

Hi All, Is there any support for setting general purpose pins in UHD ? Or even better, to be able to set them on every sample transmitted to the USRP (for precise antenna selection). BR/ Per ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org h

Re: [Discuss-gnuradio] Setting buffer size when using UHD

I read the page you refer to but I don't understand. Is this correct ? uhd::device_addr_t dev_addr; dev_addr["addr"] = "192.168.10.11 192.168.20.11"; dev_addr["addr"] = "192.168.10.11 192.168.20.11"; dev_addr["recv_buff_size"] = "1e4"; d_mdev=uhd::usrp::mimo_usrp::make(dev_addr); > If this is li

[Discuss-gnuradio] Is WUBI (Lucid) a viable environment for GNU-Radio (3.2.2) ?

I recently purchased a USRP and have a fresh install of WUBI (HP Pavillion DV5 , Windows Home Vista) and used gnuradio.org/redmine/wiki/gnuradio/UbuntuInstall to install things. I passed 'make check' correctly I have my username in the group usrp j...@ubuntu:~/gnuradio$ ls -lR /dev/bus/usb |