Re: [Discuss-gnuradio] About FLL and phase tracking error in narrow band domodulation

2013-01-08 Thread Martin Braun (CEL)
On Tue, Jan 08, 2013 at 12:27:29AM -0600, Alex Zhang wrote: In the gnuradio/gr-digital/python/generic_mod_demod.py, two blocks contains the code related to the frequency offset correction. 1. digital.fll_band_edge_cc   I am not familiar with the algorithm employed in this frequency loop

[Discuss-gnuradio] Communication in ultrasound frequency band (50KHz)

2013-01-08 Thread Kazuki Murahashi
To communicate in ultrasound frequency band,I changed 1,Program ( originally used in RF band(2.4GHz) ) 2,Daughter board ( RFX2400 2.3-2.9 GHz Rx/Tx - LFTX Daughterboard 0-30 MHz Tx LFRX Daughterboard 0-30 MHz Rx ) 3,Antenna (VERT2450 Antenna - directly connect Tx and Rx by cable without an

Re: [Discuss-gnuradio] sending single tone Am modulated using usrp1+wbx

2013-01-08 Thread José María Valencia
Ok, I understand your example, but before work with complex examples I want to “experiment” with a simple circuit as a simple DSB AM modulator based on the “theory” that I wrote in the past mail, I’m aware about realistic situations like noise and other factors and it was the reason I connected

Re: [Discuss-gnuradio] sending single tone Am modulated using usrp1+wbx

2013-01-08 Thread mleech
On 08 Jan 2013 08:48, José María Valencia wrote: Ok, I understand your example, but before work with complex examples I want to experiment with a simple circuit as a simple DSB AM modulator based on the theory that I wrote in the past mail, I'm aware about realistic situations like noise and

Re: [Discuss-gnuradio] nVidia's Tegra 4 has SDR - the i500 LTE soft modem from Icera

2013-01-08 Thread Albert Chun-Chieh Huang
According to this web page: http://www.fudzilla.com/home/item/30024-icera-i500-is-programmable-lte And the features of Icera's previous platforms: http://www.nvidia.com/object/nvidia-icera-products.html On the photo from CES, Icera i500 platform has 8 processors on it, each one contains its own

Re: [Discuss-gnuradio] sending single tone Am modulated using usrp1+wbx

2013-01-08 Thread José María Valencia
Ok, I’m aware about the damage as a result of direct connection, But now the question is How to recovery the m(t) signal in spite of noise? That is, finally the I and Q in rx should be equal to I and Q in tx. ___ Discuss-gnuradio mailing list

[Discuss-gnuradio] GNU Radio and Ettus Research at Wireless Innovation Forum

2013-01-08 Thread Matt Ettus
If you're in Washington DC this week and you have the time, we'd love to see you at the Wireless Innovation Forum conference (aka SDR Forum). Registration for exhibits is free, and you can see our booth there. At the booth we have 2 major demos -- an all-software LTE basestation running on a

Re: [Discuss-gnuradio] sending single tone Am modulated using usrp1+wbx

2013-01-08 Thread mleech
On 08 Jan 2013 13:49, José María Valencia wrote: Ok, I'm aware about the damage as a result of direct connection, But now the question is How to recovery the m(t) signal in spite of noise? That is, finally the I and Q in rx should be equal to I and Q in tx. The values of I/Q at the

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

2013-01-08 Thread Johnathan Corgan
GNU Radio release 3.6.3 is available here: http://gnuradio.org/releases/gnuradio/gnuradio-3.6.3.tar.gzhttp://gnuradio.org/releases/gnuradio/gnuradio-3.6.3rc0.tar.gz Contributors this release: Alick Zhao alick9...@gmail.com Alexandru Csete oz9...@gmail.com Ben Hilburn ben.hilb...@ettus.com Ben

[Discuss-gnuradio] Stream_Selector (grextras) on Windows

2013-01-08 Thread Luong Tan Phong
Hi list, I installed gnuradio (with grextras), uhd libraries on Windows from sources. My project used stream_selector (C++) class to to dynamically reconfigure the flow graph at runtime. When I call gr_top_block.stop()/ wait(), the wait() function don't return in a long time and I must to kill my