Very cool, Ralf! Uh just to be sure, it's this, right? https://github.com/dl5eu/gr-dl5eu ?
May I suggest you add recipe to PyBOMBS: https://github.com/gnuradio/gr-recipes ? Then it'll be indexed on https://cgran.org. Cheers, and thanks for your work! --M On Thu, Feb 6, 2025 at 10:09 PM Ralf Gorholt <ralf.gorh...@gmx.de> wrote: > Dear all, > > I have just released a very first version of the source code of my OOT > module gr-dl5eu. This is the first time that I publish my work, so > please forgive me if it does not correspond to or if I have not > respected all written or unwritten rules ;-) > > This module contains two blocks, dvbt_ofdm_synchronization and > dvbt_tps_decoder. They are based on two blocks that Federico La Rocca > has developed for ISDB-T. > > gr-dl5eu is work under development and I encourage particularly radio > amateurs who are interested in DVB-T reception with GNU Radio to test > them. There is no documentation yet, but there are comments in the code. > > Here is just a short description of what the blocks do. > > The first block, dvbt_ofdm_synchronization, recognizes the OFDM symbols > of a DVB-T signal and delivers them to the second block. Sampling rate > differences between the transmitter and receiver are interpolated so > that reception should be stable (at least when the received signal is > stable). > > The second block, dvbt_tps_decoder, decodes the TPS information that is > transmitted within the DVB-T signal and outputs the payload carriers > (that are fed into the block DVB-T Demap). dvbt_tps_decoder can send > messages containing the detected signal parameters to other blocks. > > You will find two simple sample flowgraphs in the examples directory. > > Please note that I am no DSP guy and that I actually haven't fully > understood how the blocks work exactly. I had to copy parts of the code > from the GNU Radio tree because it was either inaccessible or needed > some modifications. > > The reason why I have developed these blocks is that friends of mine are > looking for a simple and cheap solution for DVB-T reception with low > bandwidth in amateur radio, However, I would be happy if others also > find my work useful. > > Federico, when you have the time, would you take a look at my code? > Without your work I would not have been able to create my blocks! > > Kind regards, > > Ralf > >
