On Monday, 31 March 2025 14:32:34 EEST Walter Holmes wrote: > This sounds incredibly interesting to me. > > Please let us know how does this get implemented? > > Are you modifying an existing radio, to bypass the DMR chip to install the > custom firmware, like the M17 hack for TYT type radios? > > Or is there some other method to achieve this? > > Many thanks, > > > Walter/K5WH
Hi Walter, I'm afraid it is not that exciting yet, the entire DMR transceiver is implemented so far using only Linux host DSP (with open source C++ code and libraries) and uses a SDR device as the radio interface (the LimeSDR-mini was tested so far). I hope that the code can provide a starting point for the OpenRTX project (or any other related project) in an open source implementation which can run on commonly available DMR radios, but this is at the moment out-of-scope for this particular case. There are some slides from a presentation at: https://qradiolink.org/images/DMR-TRX-GNURadio-Codec2.odp And a demo video for the functionality at: https://www.youtube.com/watch?v=h4YrMieKY3Y I can come back later with more details if needed, since the slides are a bit outdated now. With many thanks to Jonathan Naylor G4KLX who has been so kind to let me use parts of his code from MMDVM for this project. Adrian YO8RZZ _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
