[Discuss-gnuradio] gnu radio installation error

Hi all, I have a problem after cloning the gnuradio .when i execute cmake command i'm getting the below error.i installed all the packages and dependencies CMake Error at volk/CMakeLists.txt:79 Please can anybody help me ___ Discuss-gnurad

Re: [Discuss-gnuradio] Still missing gnuradio-runtime in OOT modules...

Hi Achilleas, sorry if I write something someone else already suggested; I can't seem to find your previous post, as you seem to have a lot :) However, the problem is usually pkg-config not finding gnuradio runtime. So please run pkg-config --libs gnuradio-runtime This should return something li

Re: [Discuss-gnuradio] gnu radio installation error

Hi Sadhya, usually, there is a line that follows that error, describing what went wrong. That would be interesting here. Greetings, Marcus On 09/24/2013 08:59 AM, Sandhya G wrote: Hi all, I have a problem after cloning the gnuradio .when i execute cmake command i'm getting the bel

Re: [Discuss-gnuradio] gnu radio installation error

Sandhya, please always reply to the list. Maybe remove the formatting, makes things easier on my eyes at least ;) You're still ommitting relevant information. Why did you follow the specific "how to make CMake work different systems" build guide instead of the "official" installation / build gu

[Discuss-gnuradio] Addding enums to custom processing blocks

Hi, What's the process by which enums are added to the Python namespace via SWIG in gnuradio? I mean in gr_firdes, the following are added to the gr.firdes namespace in Python: enum win_type { WIN_HAMMING = 0,// max attenuation 53 dB WIN_HANN = 1,// max attenuation 44 dB WIN

[Discuss-gnuradio] Creating GUI widgets OOT using C++

Hi, I'm currently attempting to create an OOT WX widget. And I'm facing some issue with SWIG (I think). The "make" method looks like this : wx::sptr wx::make(wxWindow* parent) And the GRC .xml gives as the first argument the 'top_level' (like in other wx elements), which is of the type : > a

Re: [Discuss-gnuradio] AGC and Dynamic Range of ADC

On 09/23/2013 11:07 PM, bob wole wrote: Can somebody please guide me on this ? Bob On Fri, Sep 20, 2013 at 4:44 PM, bob wole wrote: > I have USRPN210 with WBX and RFX2400. Is there any AGC chip on N210 > motherboard or WBX, RFX2400 before ADC to utilize the dynamic range of ADC > ? if yes, wh

Re: [Discuss-gnuradio] AGC and Dynamic Range of ADC

On 09/24/2013 10:30 AM, bob wole wrote: On 09/23/2013 11:07 PM, bob wole wrote: Can somebody please guide me on this ? Bob On Fri, Sep 20, 2013 at 4:44 PM, bob wole > wrote: I have USRPN210 with WBX and RFX2400. Is there any AGC chip on N210 motherboard or WBX

Re: [Discuss-gnuradio] Still missing gnuradio-runtime in OOT modules...

Thanks this solved the problem. Achilleas ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Error building gnuradio in arch.

The qa_qtgui module is failing. When I run it manually in gdb and bt after the segfault I get. #0 0x7fffedcd360a in QString::fromLocal8Bit(char const*, int) () from /lib64/libQtCore.so.4 #1 0x7fffedd8fc61 in QCoreApplication::arguments() () from /lib64/libQtCore.so.4 #2 0x7fffee335c

[Discuss-gnuradio] Endianness in OFDM Implementation

Hello All, I have a question about the implementation of the mapping from an incoming bit-stream to generate an output of frequency-domain OFDM symbols (ofdm_mapper_bcv_impl.cc). Let's say that the incoming bit-stream is '0x00', '0x36', '0x00', '0x36', '0xff', '0x3f', '0x37', '0x27' '0x37'. Conve

Re: [Discuss-gnuradio] AGC and Dynamic Range of ADC

Well that is 80 dB of dynamic range inside the Nyquist zone (at best and let's call it N). I can add a "bit" of increase in dynamic range by downsampling (filter and decimation) and growing the accumulator size by a bit for each decimation by 4. This will increase dynamic range. I don't believe

Re: [Discuss-gnuradio] Endianness in OFDM Implementation

Hello All, > > I have a question about the implementation of the mapping from an incoming > bit-stream to generate an output of frequency-domain OFDM symbols > (ofdm_mapper_bcv_impl.cc). > > Let's say that the incoming bit-stream is '0x00', '0x36', '0x00', '0x36', > '0xff', '0x3f', '0x37', '0x27' '

Re: [Discuss-gnuradio] dual coherent channel rtl_sdr

On 09/23/2013 10:59 AM, Juha Vierinen wrote: I was playing around with the rtl_sdr dongles and came up with a trivial hack to build a receiver with multiple coherent channels. I do this basically by unsoldering the quartz clock on the slave units and cable the clock from the master rtl dongle t

Re: [Discuss-gnuradio] Creating GUI widgets OOT using C++

So after continuing to bang my head against a wall for WX, I decided to try my luck at Qt. That mostly works better. However I tried having my class inherit both from gr_sync block and from QWidget and that doesn't seem to work too well. It seems that my destructor gets called : Breakpoint 2, 0x

Re: [Discuss-gnuradio] Constellations in OOT projects

I am having issues implementing what was discussed previously. I have created an OOT module (constellation_theta), and placed it within the gr::digital namespace. All of the cpp code is written and working fine. As I am attempting to add a custom constellation, I used the existing instances of c

[Discuss-gnuradio] Floating point exception (core dumped)

Hello list, 1/ I have been stuck into debugging process of some code, Am getting a: 'Floating point exception (core dumped)' which pop up randomly: In other words, I have tried to find out was that related really to an arithmetic error of division by zero, and I fixed all possibilities of getti

Re: [Discuss-gnuradio] dual coherent channel rtl_sdr

On Sep 24, 2013, at 11:41 AM, Marcus D. Leech wrote: > On 09/23/2013 10:59 AM, Juha Vierinen wrote: >> >> I was playing around with the rtl_sdr dongles and came up with a trivial >> hack to build a receiver with multiple coherent channels. I do this >> basically by unsoldering the quartz clock

Re: [Discuss-gnuradio] dual coherent channel rtl_sdr

On Sep 24, 2013, at 1:54 PM, Ian Buckley wrote: > On Sep 24, 2013, at 11:41 AM, Marcus D. Leech wrote: > >> On 09/23/2013 10:59 AM, Juha Vierinen wrote: >>> >>> I was playing around with the rtl_sdr dongles and came up with a trivial >>> hack to build a receiver with multiple coherent channe

Re: [Discuss-gnuradio] Floating point exception (core dumped)

Hi again, I just realized how to pinpoint the erroneous section from gdb, by doing 'gdb --core=mycoredump ./NeoTx' >gdb run It was the "gr_diff_encoder_bb::work" which cause the exception, I am not initializing the variable of the modulus (the parameter to gr_make_diff_encoder_b

Re: [Discuss-gnuradio] dual coherent channel rtl_sdr

On 09/24/2013 04:57 PM, Ian Buckley wrote: Marcus, (appreciate you may have done a lot more than your brief description above, but just in case….) The type of cheap 2 pin oscillator used with the Realtek chips will be connected across an internal inverting buffer amplifier in the IC with shun

Re: [Discuss-gnuradio] Constellations in OOT projects

Upon looking at the generated *_swig.py files, I am seeing more of the differences. For some reason my OOT module is not generating the python wrapper for the constellation_theta class, it is only creating the wrapper for the shared pointer object. I am curious now as to what the gnuradio swig in

Re: [Discuss-gnuradio] dual coherent channel rtl_sdr

On 09/25/2013 12:04 AM, Jared Clements wrote: Hi Marcus, Interesting discussion. I was wondering how well synchronized clocking might work. Was hoping it would work better than it sounds. Could you quantify the level of phase noise you're seeing, like with a power spectral density plot?