Re: [Discuss-gnuradio] [ Calculating the amplitude of a signal source ]

2012-12-17 Thread Marcus D. Leech
** (i) How many *bytes* does each I or Q component take? -- Ashish For complex samples, the file-sink writes native, IEEE-754 single-precision floating-point values into the file, with I and Q interleaved. IEEE-754 single-precision is 32-bits, and is the native binary format used by

Re: [Discuss-gnuradio] New to list, trying portaudio under OpenBSD

2012-12-17 Thread Tom Rondeau
On Sat, Dec 15, 2012 at 12:15 AM, Alan Corey alan01...@gmail.com wrote: I've got my disabled list down to: -- * gr-comedi -- * gr-qtgui -- * gr-uhd -- * gr-shd -- * gr-fcd -- * gr-wxgui But mostly I've just been finding dependancies and installing them. I think I'm going to

Re: [Discuss-gnuradio] QT GUI FFTSINK in C++ Flowgraph

2012-12-17 Thread Tom Rondeau
On Sun, Dec 16, 2012 at 5:23 PM, Daniel Labarowski labarowsk...@gmail.comwrote: I've been toying around with this a bit more. I added #include QWidget to the top of my program. I also added QWidget* parent = new QWidget; before my call to qtgui_make_sink_c and replaced QWidget *parent=NULL

Re: [Discuss-gnuradio] QT GUI FFTSINK in C++ Flowgraph

2012-12-17 Thread Marcus D. Leech
I've never tried to use QTGUI in C++ apps, so I'm curious to know if you can get it to work. Tom I believe that gqrx is an instance of an app that uses both QtGUI, and Gnu Radio, and is largely written in C++, and is open source. Valuable hints might be gleaned by looking at that source

Re: [Discuss-gnuradio] QT GUI FFTSINK in C++ Flowgraph

2012-12-17 Thread Alexandru Csete
On Mon, Dec 17, 2012 at 4:47 PM, Marcus D. Leech mle...@ripnet.com wrote: I've never tried to use QTGUI in C++ apps, so I'm curious to know if you can get it to work. Tom I believe that gqrx is an instance of an app that uses both QtGUI, and Gnu Radio, and is largely written in C++, and is

Re: [Discuss-gnuradio] FSK performance as a function of Fd?

2012-12-17 Thread Joanna Rutkowska
On 12/17/12 06:13, Matt Ettus wrote: On Sun, Dec 16, 2012 at 2:27 PM, Joanna Rutkowska joa...@invisiblethingslab.com wrote: This is an FSK receiver from Atmel. Even though it apparently supports only data rates between 1-20 kbps, its supported Fd is within a range of 18kHz-50kHz. This

[Discuss-gnuradio] hiiii gudmng fnds,

2012-12-17 Thread sivakumar reddy
Hi all, I have recorded a sinusoidal USRP signal (generated by a vector signal generator) in its complex form in a file_sink. I understand that the file_sink will have the I-Q data of the signal. Can anyone tell me in what format that I-Q data will be stored i.e (i) How many bites does each I

[Discuss-gnuradio] gr-howto-write-a-block build fails

2012-12-17 Thread Tommy Tracy II
Dear List, I'm looking to write c++ gnuradio blocks using the gr-howto-write-a-block code that comes with gnuradio. Unfortunately, when I do the build with the existing code, the tests fail. Has anyone else seen this? I'm running Ubuntu 12.10. --