M17 digital voice
An open-source digital voice mode for hams, using the free Codec2 voice codec.
ModeM17 digital voice
FamilyDigital voice
Audio example10.7 s
What does it sound like?
Plate 33Digital voice
A buzzing digital sound similar to other digital voice modes.
0 Hz1,0002,0003,000 Hz
10.7-second example. A clean example made by our own signal generator; signals on the air usually sound noisier.
Field marksFour-level FSK4,800 symbols per secondDigital voice on VHF/UHF
Who uses it?
Amateur radio operators.
Where and when can I hear it?
Ham VHF/UHF.
Easily confused with
- DMR digital voice, from the same family
- P25 digital voice, from the same family
- D-STAR digital voice, from the same family