Every other digital voice mode in amateur use depends on a proprietary voice codec that cannot legally be reimplemented. M17 was created to fix that, using an open codec throughout.
It is younger and much less used than DMR or Fusion, but it is the one an experimenter can take apart, and that matters to a hobby built on experimentation.
At a Glance
- Category
- Digital voice
- On the air since
- 2019
- Bandwidth
- About 9 kHz
- What you need
- Compatible radios and modems, plus community firmware projects
- Where to listen
- M17 reflectors, still a small community