Beiträge von W5NYV

    Dear friends and fans of GNU Radio,

    GNU Radio Conference celebrates and showcases the substantial and remarkable progress of the world's best open source digital signal processing framework for software-defined radios. In addition to presenting GNU Radio’s vibrant theoretical and practical presence in academia, industry, the military, and among amateurs and hobbyists, GNU Radio Conference 2019 will have a very special focus.

    Summer 2019 marks the 50th anniversary of NASA's Apollo 11 mission, which landed the first humans on the Moon. GNU Radio Conference selected Huntsville, AL, USA as the site for GNU Radio Conference 2019 in order to highlight and celebrate space exploration, astronomical research, and communication.

    Space communications are challenging and mission critical. Research and development from space exploration has had and continues to have far-reaching effect on our communications gear and protocols.

    Please join us September 16-20, 2019 at the "Huntsville Marriott at the Space & Rocket Center" hotel for the best technical conference of the year.

    Registration and an online and mobile-friendly schedule will be posted at the conference web site:

    Call for All!

    We invite developers and users from the GNU Radio Community to present your projects, presentations, papers, posters, and problems at GNU Radio Conference 2019. Submit your talks, demos, and code! Please share this Call for All with anyone you think needs to read it.

    To submit your content for the conference, visit our dedicated conference submission site at:

    If you have questions or need assistance with OpenConf, or have content that doesn't quite fit and you want to talk it over, please write

    Topics may include but are not limited to:

    Space (including ground stations)*

    Amateur Radio

    Radio astronomy

    Atmospheric research

    Theoretical work

    Practical applications



    Citizen Science

    Digital Signal Processing


    Radio Interface

    Machine Learning



    Wireless security

    *special focus awards given to all accepted work with Space as a topic.

    Thank you this is great!

    Hi Michelle, thank you for the work you are doing. My activity is concentrated for the EME on 10 Ghz, but I do not hide that the new satellite teases me to do this hi 73 'Gennaro.

    I imagine the complexity of the LDPC code. A system born many years ago but today is finding a new starting point for DVB compliments again for your work.

    All credit goes to the team. I just support the work and make sure the right people get credit and what they need to get things done.

    We are making lots of progress and having a great time! If anyone is in the US for HamCation (Florida) then visit us in the expo. We're next to TAPR and the Amateur Radio Astronomy Group. We are hosting a forum and have plenty of fun things planned.

    Good deal with the virtualization!

    Yes, we are striving to have binaries for people to use.

    LDPC is hard but the performance is worth it. Our goal on Phase 4 Ground is to have DVB-S2/X fully open source implementations for hams to use in space and terrestrial radio systems. After a lot of work, we are starting to get there!

    We have an open source implementation of LDPC decode for DVB-S2/X for GNU Radio now. This is in addition to the GPU version from Charles Brain.

    Here is the latest LDPC soft decision work that we've supported on Phase 4 Ground. The various algorithms are described in the README.

    Here is the current out of tree module that implements the LDPC soft decision decoder.

    Next step is a version for FPGA!

    We (Phase 4 Ground) have a dual band feed design that we're 3D printing and testing for P4A that might be worth considering.

    It's a helical over a circular waveguide. I'll post more as soon as I can. We were asked about it after we published the P4B dual band feed.