OpenDMR 0.3.0: P25 on the Baofeng DM-32UV
OpenDMR is open firmware for the Baofeng DM-32 / DM-32UV. Version 0.3.0 adds APCO P25 Phase 1 digital voice:
P25 mode for channels and VFOs (SK1 + *), with the NAC and talk group
Simplex group calls in the clear: DM-32UV to DM-32UV, and received by MMDVM hotspots (Pi-Star)
About 250 ms from PTT to the other speaker, quicker than its own DMR
Our own IMBE vocoder and air interface, with no stock firmware code
Also new:
Power up to 10 W, set for each channel and VFO
OpenDMR CPS in the package: a codeplug editor that opens in Chrome or Edge. It writes Chinese names, P25 channels and the radio's settings.
Download and docs:
https://github.com/va3bpf/OpenDMR/releases/tag/v0.3.0For now it does simplex group calls in the clear only; encryption, private calls, repeaters and trunking are not done yet. The known issues are listed in docs/p25.md, and help is welcome. Non-commercial use only.