[Discuss-gnuradio] Hardware advice for TDMA MAC implementation

2013-01-21 Thread Guy Holtzman
I am thinking of developing a TDMA MAC + PHY using GNURadio for low speed communication (upto 200KBits per second) for prototyping. since OpenBTS has successively implemented a GSM BS using GNURadio, this seems to be a reasonable choice. but unlike OpenBTS, I want to avoid HW (clock changes) or

[Discuss-gnuradio] WX GUI FFT Sink, autoscale on starting up ?

2013-01-21 Thread Ben Z en de rest
Hi all, would it be possible to pass a parameter to the FFT Sink to have it autoscale the waterfall to the tuned signal levels at startup ? I have multimode.grc running but I would like to have the waterfall at autoscale on starting the receiver. Currently using GRC v3.6.2-201 Thanks for your

[Discuss-gnuradio] Not able to find usrp.py

2013-01-21 Thread Ghulam Rasool Begh
Hi all,I have installed gnu radio recently with build-gnuradio. I am using it without usrp presently.In the literature for understanding Gnuradio,I quiet often find reference to the file structure likeĀ /usr/local/lib/python2.* /site-packages/gnuradio/usrp.py. However, in my system i am not able

Re: [Discuss-gnuradio] Not able to find usrp.py

2013-01-21 Thread Martin Braun (CEL)
On Mon, Jan 21, 2013 at 07:04:25AM -0800, Ghulam Rasool Begh wrote: I have installed gnu radio recently with build-gnuradio. I am using it without usrp presently. In the literature for understanding Gnuradio,I quiet often find reference to the file structure like /usr/local/lib/python2.*

Re: [Discuss-gnuradio] Data slicer

2013-01-21 Thread Nemanja Savic
Hi guys, I am having problem with configuring clock synchronization block. I have baseband signal, sampled in URSP with 509k. After that signal is filtered and i wanted to send it to clock synchronization block MM. The problem is flow graph won't work. It starts with empty scope sinks. When I

Re: [Discuss-gnuradio] Thread AssertionError and Libc++abi.dylib on Mac Transmissions

2013-01-21 Thread Michael Dickens
Hi Julian - The command to have MacPorts install GTK to use Quartz is sudo port install gtk2 +no_x11 +quartz. MacPorts will automatically deactivate the prior install of GTK2 and activate this one. I've never tested this variant, so if you do do this, please post your results from trying to

[Discuss-gnuradio] OFDM block

2013-01-21 Thread Kareem Metwaly
Hi, I have two USRP kit. I have tested them on different modulation techniques, but I have a problem with OFDM block. It doesn't work with USRP kits, Although it works fine on the simulation Thanks, ___ Discuss-gnuradio mailing list

[Discuss-gnuradio] GUI feature request for gnuradio-companion

2013-01-21 Thread Edmund Humenberger
Please see the video to understand my suggestion of a filter for the Blocks list. http://www.youtube.com/watch?v=gd_uk5m_PkU Thank you for the good work ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] GUI feature request for gnuradio-companion

2013-01-21 Thread Josh Blum
On 01/21/2013 12:37 PM, Edmund Humenberger wrote: Please see the video to understand my suggestion of a filter for the Blocks list. http://www.youtube.com/watch?v=gd_uk5m_PkU Thank you for the good work There actually is a search feature: just type into the block selection window, and

Re: [Discuss-gnuradio] GUI feature request for gnuradio-companion

2013-01-21 Thread Tom Rondeau
On Mon, Jan 21, 2013 at 1:37 PM, Edmund Humenberger edmund.humenber...@onsitebroadcast.at wrote: Please see the video to understand my suggestion of a filter for the Blocks list. http://www.youtube.com/watch?v=gd_uk5m_PkU Thank you for the good work Hi Edmund, I agree that a search

Re: [Discuss-gnuradio] Hardware advice for TDMA MAC implementation

2013-01-21 Thread John Malsbury
Guy, Sorry for the the delayed response. You seem to have a reasonable understanding of the way timestamps and tags are working in GNU Radio. Here's a basic overview of how the pre-cog TDMA block works. To get a sense of time the block reads samples from a UHD source. When streaming starts,

Re: [Discuss-gnuradio] GNU Radio release 3.6.3 available for download

2013-01-21 Thread Albert Chun-Chieh Huang
Michael Dickens m...@alum.mit.edu writes: On Jan 10, 2013, at 3:35 PM, Alexandru Csete oz9...@gmail.com wrote: Thanks for your help. As it turns out, I simply forgot to run the last step that actually installs boost 1.51 after building it - that explains why boost 1.52 got installed with uhd.