Hi, The scripts in src/demod/python/ don't work with GNUradio 3.7. Mike Jameson wrote a patch for UHD and I completed with a patch for osmo-sdr receivers : https://github.com/m0mik/osmo-tetra/commit/5429a1e3abf3e5c1aeadc0253169233fa... https://github.com/Tim---/osmo-tetra/commit/374e651264dc2cbe02366b9affc2f5e1... Unfortunately I don't have the hardware to test the other scripts but the modifications should be similar. Regards. Timothée.