Re: [Discuss-gnuradio] Synchronization issue with multiple USRPs

2011-04-24 Thread Josh Blum
Could you post a screen shot of the flow graph or attach the grc file? -Josh On 04/24/2011 11:10 PM, Khalid Jamil wrote: > Hi, > > I have an eight element circular antenna array and I want to do beamforming > using eight N210s in receive mode. So, I distributed 10MHz/1PPS reference to > each N210

[Discuss-gnuradio] Synchronization issue with multiple USRPs

2011-04-24 Thread Khalid Jamil
Hi, I have an eight element circular antenna array and I want to do beamforming using eight N210s in receive mode. So, I distributed 10MHz/1PPS reference to each N210 to synchronized them and routed the eight GbE ports through a switch to the computer. I store data from each channel in one file/ch

[Discuss-gnuradio] LTE & LTE-Advanced using GNU Radio

2011-04-24 Thread adib_sairi
Dear all, Is anybody know if there is any work on LTE or LTE-A using GNU Radio? is there already any code for LTE phy layer on GNU Radio? please provide me any information if there is one. thanks.. Adib - Mohd Adib Sarijari Universiti Teknologi Malaysia www.fke.utm.my www.utm.my -- View thi

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread Josh Blum
> john@johnsdesktop:~$ uhd_find_devices > linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.000.001-627075e > > -- > -- UHD Device 0 > -- > Device Address: > type: usrp1 > name: > serial

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread john
On Sun, 2011-04-24 at 09:28 -0700, Josh Blum wrote: > > > > john@johnsdesktop:~$ uhd_find_devices > > linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.000.001-8212f22 > > > > No UHD Devices Found > > john@johnsdesktop:~$ > > > > Looks like you didnt build w/ USB and USRP1 support? > > -Jos

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread john
On Sun, 2011-04-24 at 08:36 -0400, Marcus D. Leech wrote: > On 04/24/2011 02:47 AM, john wrote: > > wget -nd -r -np > > http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/ > > > >> /dev/null 2>&1 > >> > > does not work. I just navigated to the image files in binaries for > > r

[Discuss-gnuradio] USRP and Variable Bitrate input

2011-04-24 Thread Tom Hendrick
Hello all. I am slowly making progress on a streaming application but am coming across some problems with underruns on the transmit side. I am using a C++ program to modulate an input signal.  Unfortunately the input signal to the C++ has a variable bitrate.  The problem is that the C++ progra

[Discuss-gnuradio] Wanted: used USRP 1, 2 etc.

2011-04-24 Thread Bob Keyes
Hello, I am a student in need of a USRP. I'd like the USRP2 or the N200, but they're probably too expensive. I can probably still use the old USRP1. I think I have the radios I need, but if you've got them or accessories to sell, I'd be interested in hearing about it. __

[Discuss-gnuradio] how-to-square-block has no output in Scope Sink

2011-04-24 Thread bilal-awan
Hi Everyone, When I put "square" block in series with a signal source and than attach a scope sink to it, there is no output. Kindly help me with that. I am new, we are working on gnuradio as part of our FYP for development of Layer1 components of LTE-Advanced. -- View this message in context:

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread Marcus D. Leech
I should not that I had to work around an issue when Marcus' script was running because this line: wget -nd -r -np http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/ /dev/null 2>&1 does not work. I just navigated to the image files in binaries for release 003.000.001 - 2011/04/01

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread Josh Blum
> > john@johnsdesktop:~$ uhd_find_devices > linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.000.001-8212f22 > > No UHD Devices Found > john@johnsdesktop:~$ > Looks like you didnt build w/ USB and USRP1 support? -Josh ___ Discuss-gnuradio maili

Re: [Discuss-gnuradio] Recent Changes to UHD causing issue for USRP1?

2011-04-24 Thread Marcus D. Leech
On 04/24/2011 02:47 AM, john wrote: > wget -nd -r -np > http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/ > >> /dev/null 2>&1 >> > does not work. I just navigated to the image files in binaries for > release 003.000.001 - 2011/04/01 > > i.e UHD-images-003.000.001.tar.gz so