I've published a receiver and demodulator using gnuradio 3.10 for
osmo-tetra (and maybe other python3 gnuradio versions, but this was not
The pull request was sent to https://github.com/osmocom/osmo-tetra, which
i now know won't work.
I will figure out how to send the patch, when i get some time to read the
docs, but in the meantime, maybe you would just like to grab the files
Jacek / SQ5BPF