M17 (amateur radio)

M17 is a digital voice and data protocol specification developed by Wojciech Kaczmarski (amateur radio call sign SP5WWP) with contributions from the amateur radio community. M17 is primarily designed for voice communications on the VHF amateur radio bands, and above. The project received grants from the Amateur Radio Digital Communications in 2021 and 2022. The protocol has been integrated into several hardware and software projects, including commercial handheld radios.