[Discuss-gnuradio] Error calling tune on sub devices

2013-04-30 Thread syed Saad
 Hello! I am an undergraduate student and doing my project on USRP and using RFX900 for my work Transmitter is working perfectly but suddenly Receiver stops working and the error message "Error calling Tune on sub devices" Kindly help me I have only 1 day and i am facing this issue. Thanks in

[Discuss-gnuradio] usrp_n200_r3_fpga.bin build error

2013-04-30 Thread Rahman, Muhammad Mahboob Ur
All, I am trying to modify the USRP N200 FPGA so as to mute the ADC when TX section is enabled inside my flow graph. However, when I try to build the usrp_n200_r3_fpga.bin file, I get below error message which I don't understand: l-ece109:N2x0$ make -f Makefile.N200R3 bin python /nfs/s-l011/lo

Re: [Discuss-gnuradio] PLL Issues

2013-04-30 Thread Tyler Foster
Nick, Here is the part causing problems: http://i.imgur.com/D3dQjtz.png?1 Basically I am transmitting data over an audio cable. On Tue, Apr 30, 2013 at 4:29 PM, Nick Foster wrote: > On 04/30/2013 04:27 PM, Tyler Foster wrote: > >Hey all, > > I am currently working on a project creating

Re: [Discuss-gnuradio] PLL Issues

2013-04-30 Thread Nick Foster
On 04/30/2013 04:27 PM, Tyler Foster wrote: Hey all, I am currently working on a project creating a BPSK modem through GNU radio and I am having issues with the carrier tracking PLL block on my receive side. At first I was getting a "beat" in my baseband signal, which is shown here : http://i

[Discuss-gnuradio] PLL Issues

2013-04-30 Thread Tyler Foster
Hey all, I am currently working on a project creating a BPSK modem through GNU radio and I am having issues with the carrier tracking PLL block on my receive side. At first I was getting a "beat" in my baseband signal, which is shown here : http://i.imgur.com/vuaVUs5.png?1 I discovered that i nee

Re: [Discuss-gnuradio] g++ internal error while compiling gnuradio on USRP E100

2013-04-30 Thread Marcus D. Leech
On 04/30/2013 06:41 PM, Isdren Gineer wrote: Fellow gnuradio'ers, I am trying to compile gnuradio from src on a USRP E100 but encounter a fatal error prior to completion. Specifically, the last few lines of stdout and stderr output are: Linking CXX shared module _gnuradio_core_filter.so [ 39

Re: [Discuss-gnuradio] Calculating the delay of TCP link.

2013-04-30 Thread Mark McCarron
The MTU will only tell you if there is fragmentation. In packet switched networks, there can be delays for any number of reasons that are not entirely predictable. For example, assume someone is watching a video, using VOIP, downloading, etc. These can place heavy load on a switch, router or

Re: [Discuss-gnuradio] Calculating the delay of TCP link.

2013-04-30 Thread Marcus D. Leech
On 04/30/2013 03:40 PM, Sajjad Safdar wrote: Hi, Is it any way to calculate using the MTU size of TCP packet and the sampling rate, like a mathematical approach using formulas. Best Regards, SAJJAD SAFDAR Well, no, because you have to actually *measure* the delay. Any real IP network has

Re: [Discuss-gnuradio] Calculating the delay of TCP link.

2013-04-30 Thread Sajjad Safdar
Hi, Is it any way to calculate using the MTU size of TCP packet and the sampling rate, like a mathematical approach using formulas. Best Regards, SAJJAD SAFDAR From: Mark McCarron To: Sajjad Safdar Sent: Tuesday, April 30, 2013 12:33 AM Subject: RE: [Disc

[Discuss-gnuradio] What is the function of fir_filter_ccc in gnuradio(synchronization process in ofdm example)?

2013-04-30 Thread Yingjie Chen
Hi guys, I am trying to figure out how fir_filter work. In particular for the case that using fir_filter to perform cross-correlation in synchronization process. However, I read the code but still can not understand it. Please tell me if you know it. Thank you so much. *Please refer to the follow

Re: [Discuss-gnuradio] How to plot(gr-utils) the complex data in gnuradio?

2013-04-30 Thread Martin Braun (CEL)
On Tue, Apr 30, 2013 at 03:41:24PM +0800, Yingjie Chen wrote: > I want to observe the pattern of received signal in ofdm example, however, the > signal over the air is complex type. So I want to know how to use gr-utils to > plot these complex data. Thanks so much. gr_plot_* will plot data in all

[Discuss-gnuradio] How to plot(gr-utils) the complex data in gnuradio?

2013-04-30 Thread Yingjie Chen
Hi guys, I want to observe the pattern of received signal in ofdm example, however, the signal over the air is complex type. So I want to know how to use gr-utils to plot these complex data. Thanks so much. Best, Kay ___ Discuss-gnuradio mailing list Di

Re: [Discuss-gnuradio] Nothing known about namespace 'pmt'

2013-04-30 Thread Bastian Bloessl
Hi Alex, On 04/28/2013 09:00 PM, Alex Dusowitz wrote: Scanning dependencies of target _ieee802_11_swig_swig_tag [ 38%] Building CXX object swig/CMakeFiles/_ieee802_11_swig_swig_tag.dir/_ieee802_11_swig_swig_tag.cpp.o Linking CXX executable _ieee802_11_swig_swig_tag [ 38%] Built target _ieee802_1