Re: CCSDS 27 encoder/decoder

Thanks very much Christophe! George On Mon, Apr 19, 2021, 2:16 PM Christophe Seguinot < christophe.segui...@orange.fr> wrote: > Hi > > comparing inp and out bits in x-PSK at least need differential > encoding/decoding, > > See for example >

Re: CCSDS 27 encoder/decoder

Hi comparing inp and out bits in x-PSK at least need differential encoding/decoding, See for example https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation Regards, On 19/04/2021 00:48, George Edwards wrote:

Re: Strange FFT AUDIO

The QT GUI Frequency Sink does have a option to hide the other side of the spectrum. When float input is selected, an additional parameter "Spectrum Width" is available. Options are "Full" and "Half". Ron On 4/19/21 12:03, Kevin Reid wrote: On Mon, Apr 19, 2021 at 11:44 AM Alberto

Re: Strange FFT AUDIO

Hi Kevin! It does have that option: When you set it to "Type: Float", a choice "Spectrum Width: Full" appears, which you can change to "Half". Best, Marcus On 19.04.21 21:03, Kevin Reid wrote: > On Mon, Apr 19, 2021 at 11:44 AM Alberto > wrote: > > To

Re: Strange FFT AUDIO

Hi everyone, On 4/19/21 9:03 PM, Kevin Reid wrote: For viewing purposes, just ignore the other side of the spectrum. (It would be nice if the QT GUI Frequency Sink had an option to hide it when given float input, but as far as I know, it doesn't.) But it does! Just switch the input to real

Re: Strange FFT AUDIO

Thank you very much ! To obtain a real FFT i can use Float to Complex block ? Inviato da iPhone > Il giorno 19 apr 2021, alle ore 20:36, Kevin Reid ha > scritto: > > > GNU Radio is designed for working with IQ / complex signals. You are seeing > the symmetric spectrum that results from

Re: Strange FFT AUDIO

On Mon, Apr 19, 2021 at 11:44 AM Alberto wrote: > To obtain a real FFT i can use Float to Complex block ? > Float to Complex will do the same thing you're seeing now — it just writes a zero imaginary component into the stream. If you need a signal with an actually one-sided spectrum you can

Re: An example of pure C++ code of GNU Radio?

Thank you all for the pointers! I will check them out. Best, Clark On Mon, Apr 19, 2021 at 5:14 AM Ron Economos wrote: > https://github.com/csdvb/dvbs2_tx > > Ron > > On 4/18/21 20:59, Clark Chiu wrote: > > Hi all, > > > > I went through most of the tutorials of GNU Radio and part of the > >

Re: Strange FFT AUDIO

On Mon, Apr 19, 2021 at 11:09 AM Alberto wrote: > Why a second peak at 2 KHz with same amplitude of 1KHz ? > GNU Radio is designed for working with IQ / complex signals. You are seeing the *symmetric* spectrum that results from treating a real-valued signal as a complex one with a zero

Windows 7 x64 problem...

Hi ! I have created a simple example to View 100MHz signal from sdr receiver...but i have a problem. My OS is Windows 7 x64, GNURadio 3.7.13.5. When i start a receiver with gnuradio an window error open: Pyton.exe has stop working Can you help me ? Alberto Inviato da iPhone

Re: An example of pure C++ code of GNU Radio?

https://github.com/csdvb/dvbs2_tx Ron On 4/18/21 20:59, Clark Chiu wrote: Hi all, I went through most of the tutorials of GNU Radio and part of the source code. I understand GNU Radio is composed by Python for the interface and C++ for the DSP block implementations. My question is, is

Re: An example of pure C++ code of GNU Radio?

On Monday, April 19, 2021 6:59:32 AM EEST Clark Chiu wrote: > Hi all, > > I went through most of the tutorials of GNU Radio and part of the source > code. I understand GNU Radio is composed by Python for the interface and > C++ for the DSP block implementations. My question is, is there any

Re: An example of pure C++ code of GNU Radio?

Clark Chiu wrote: I went through most of the tutorials of GNU Radio and part of the source code. I understand GNU Radio is composed by Python for the interface and C++ for the DSP block implementations. My question is, is there any example that only uses C++ code? A simple example is