Re: [Discuss-gnuradio] Floating point FFT usage - suppress half of it?

Hi, On Mon, 2018-03-19 at 22:29 -0400, Brad Hein wrote: > > - Is it true then that if I have a 100-bin FFT, that each of the > "left 50" equals the negative of its corresponding right-side bin? > No, it's their complex conjugate. > - Is there any use for "negative frequencies" if my goal is to

[Discuss-gnuradio] FSK transmitter tutorial

Hi, I would like to build an FSK modulator/demodulator. I'm using file sink/sources for the moment. I need to be able to specify the two frequencies, baud rate and sample rate (ideally at runtime). I started with the gr-tutorial for qpsk, hoping to replace the modulation/demodulation with gfsk

Re: [Discuss-gnuradio] FSK transmitter tutorial

Check out the FSK : Digital section of https://wiki.gnuradio.org/index.php/SignalProcessing Shows you how to set up some variables you'll need. Freq modulator and quadrature demodulator are important. So is filtering. On Tue, Mar 20, 2018 at 7:49 AM Murray Thomson

Re: [Discuss-gnuradio] GSoC 2018: Compas Widget

Hello Valian, Thank you for your interest in GNU Radio and GSoC! that compass you put together seems like a good start for what we'd like to have. Answering your question: optimally we'd like to have all the ones that are listed (and probably even more if we see the necessity or applicability of

Re: [Discuss-gnuradio] [GSoC18] Application period started!

Hi all, this is just a quick reminder that you have one week left to submit your proposals! And again: Do not wait until the last second! Reach out to us and discuss your ideas on this list, we are happy to help you refining your project scope and milestones. Cheers, Felix On 03/12/2018

Re: [Discuss-gnuradio] Accessing the ADI registers on B200mini

On 03/20/2018 03:27 PM, Firdavs Pulat wrote: Hi Marcus, Could you please elaborate on the "extend the Gnu Radio multi_usrp" part? Maybe you could point me to some examples one how to set these (I assume others must have played around with them since it's so essential), or documentation on

Re: [Discuss-gnuradio] Callback Function in Blocks for C++

Thanks both of you for the help, I am checking the example in the throttle block and also the swig part, i will let you know if i have further questions. Kind regards. On Tue, Mar 20, 2018 at 1:12 PM, Michael Dickens wrote: > Hi Luis - You also have to make sure the

Re: [Discuss-gnuradio] FSK transmitter tutorial

I have a RTTY flow graph that you may find useful as a starting point. It's transmit only (I was just using it to test the RTTY decoder on the ICOM IC-7300 ham transceiver). http://www.w6rz.net/rtty.grc And a program to generate a baudot test file from a text file.

Re: [Discuss-gnuradio] Callback Function in Blocks for C++

Take a look at https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/include/gnuradio/blocks/throttle.h#L57 , https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/throttle_impl.h#L49, and https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/throttle_impl.cc#L70 as an

Re: [Discuss-gnuradio] Callback Function in Blocks for C++

Hi Luis - You also have to make sure the function is passed through from C++ to Python via SWIG, which means that it must be in the public header in the OOT, not just the private header. Hope this helps! - MLD On Tue, Mar 20, 2018, at 12:40 PM, Luis Felipe Albarracin Sanchez wrote:> Hello

[Discuss-gnuradio] Callback Function in Blocks for C++

Hello Everyone, I am trying to build a new block from scratch, that allows me to change parameter values while the flowgraph is running. I have found that for the .XML code i must use: "Function"($XXX) My question is, in the c++ code , besides creating the function and applying values to the

Re: [Discuss-gnuradio] Accessing the ADI registers on B200mini

Hi Marcus, Could you please elaborate on the "extend the Gnu Radio multi_usrp" part? Maybe you could point me to some examples one how to set these (I assume others must have played around with them since it's so essential), or documentation on how that's done? I'm just not sure where/how in the