Re: [Discuss-gnuradio] timed command

2013-03-03 Thread Josh Blum
On 03/03/2013 09:28 PM, Gong Zhang wrote: > Hi, > I wanna transmit a 1khz Sinusoidal signal for one second and transmit > 2khz for another second.The code maybe something like this: > set_command_time(&mytime) > sig_sin_source.work(...) > set_command_time(&mytime+1) > sig_sin_source.work(...) > B

Re: [Discuss-gnuradio] Questions about tdma_engine.py

2013-03-03 Thread Alex Zhang
hello John, I am wondering, in future, if the receiver will also work in a tdma manner at the waveform level,i.e, the demodulation can be done within specified time slot. One of the benefits is that the computing on the receiver can be decreased significant. Thanks. On Sun, Mar 3, 2013 at 8:50

[Discuss-gnuradio] timed command

2013-03-03 Thread Gong Zhang
Hi, I wanna transmit a 1khz Sinusoidal signal for one second and transmit 2khz for another second.The code maybe something like this: set_command_time(&mytime) sig_sin_source.work(...) set_command_time(&mytime+1) sig_sin_source.work(...) But as I know,the first set_command_time would back-pressure

Re: [Discuss-gnuradio] Questions about tdma_engine.py

2013-03-03 Thread John Malsbury
You are correct. The demodulated will demodulate continuous. The receive samples are routed to the TDMA engine for timing information of the transmissions. -John On Sun, Mar 3, 2013 at 5:48 PM, Gong Zhang wrote: > Hi, > I have read the file tdma_engine.py in PreCog.It seems they deal with > d

[Discuss-gnuradio] Questions about tdma_engine.py

2013-03-03 Thread Gong Zhang
Hi, I have read the file tdma_engine.py in PreCog.It seems they deal with data and update local time according to the time tags.But how can we demodulated the signal from antenna in the start without knowing the time.Is this imply we can only transmission at the fixed frequency?I appreciate any tip

[Discuss-gnuradio] NBFM recorder

2013-03-03 Thread lewis Brown
For what it's worth, this is a simple project I wrote that reads N channels from a file and streams the narrow band FM audio to audio sink and wav file (removing the dead space). I use it for monitoring 2 meter repeaters and simplex channels. I'm able to monitor 27 channels across the entire 2m

[Discuss-gnuradio] FW: branch next - analolg FM modulators do not work?

2013-03-03 Thread Ralph A. Schmid, dk5ras
> Ralph, > > We have discussed and warned about this on the mailing list with our move > to the 3.7 API. Because we are making core changes to the API and in which > modules the blocks exist, we know there are going to be breakages in the > example code. We are waiting until we are done transition

Re: [Discuss-gnuradio] branch next - analolg FM modulators do not work?

2013-03-03 Thread Tom Rondeau
On Sun, Mar 3, 2013 at 3:19 AM, Ralph A. Schmid wrote: > Hi, > > with branch "nect" I get an error like this wenn for example a simple NBFM or > WBFM transmitter is built: > > howing: "/media/RAS_SD/Documents/Stereo-TX.grc" > > Generating: "/media/RAS_SD/Documents/top_block.py" > > Executing: "/me

[Discuss-gnuradio] Error building gnuradio 3.4.2 on ubuntu 12.04 (usrp_prims.cc file error)

2013-03-03 Thread Sundus Tahir
Hello all, I am trying to build gnuradio 3.4.2 on ubuntu 12.04 and I am getting an error running the make -j 8 command. It is a swig problem, according to this discussion in the archives: "From: Tom Rondeau Subject:Re: [Discuss-gnuradio] Build error GNU Radio release v3.3.1git-971-ga

Re: [Discuss-gnuradio] how to compile the py file in gnuradio

2013-03-03 Thread Nicholas Corgan
Python is an interpreted language, so unlike C++, you do not need to recompile your program to run it with your changes. On Sun, Mar 3, 2013 at 5:34 AM, Yingjie Chen wrote: > Hi guys, > > I have checked the mailing list before, but cannot fine any useful > information related to my question. I

[Discuss-gnuradio] how to compile the py file in gnuradio

2013-03-03 Thread Yingjie Chen
Hi guys, I have checked the mailing list before, but cannot fine any useful information related to my question. I have done some modifications in ofdm.py file. And I want to rebuild or compile it, how should I do? I have try to use make install command, seems nothing happen.

Re: [Discuss-gnuradio] Voice over IP using GNu Radio.

2013-03-03 Thread Phil Frost
On 03/03/2013 06:18 AM, Sajjad Safdar wrote: Is there any way of transmitting voice over ip using GNu Radio Companion. To the extent that you can define what networking, modulation, and VoIP protocols you intend to use, yes. ___ Discuss-gnuradio ma

[Discuss-gnuradio] Voice over IP using GNu Radio.

2013-03-03 Thread Sajjad Safdar
HI, Is there any way of transmitting voice over ip using GNu Radio Companion. Best Regards, SAJJAD SAFDAR___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] branch next - analolg FM modulators do not work?

2013-03-03 Thread Ralph A. Schmid
Hi, with branch "nect" I get an error like this wenn for example a simple NBFM or WBFM transmitter is built: howing: "/media/RAS_SD/Documents/Stereo-TX.grc" Generating: "/media/RAS_SD/Documents/top_block.py" Executing: "/media/RAS_SD/Documents/top_block.py" Traceback (most recent call last):