| WIRES-X |
Varies by repeater |
Yaesu WIRES-X |
C4FM |
Digital voice communication over the internet |
| M17 |
Varies by band |
M17 Software |
FSK |
Open-source digital voice protocol |
| DMR |
Varies (UHF/VHF bands) |
OpenDMR |
TDMA |
Digital voice and data communication |
| D-STAR |
144 MHz, 430 MHz |
Icom D-STAR |
GMSK |
Digital voice and data communication |
| YSF (Yaesu System Fusion) |
Varies by repeater |
Yaesu System Fusion |
C4FM |
Digital voice communication via Yaesu radios |
| P25 |
Varies (public safety bands) |
P25 Information |
CQPSK |
Digital voice communication for public safety |
| NXDN |
Varies by repeater |
NXDN Forum |
FDMA |
Commercial digital voice and data communication |
| TETRA |
Varies (primarily 380-400 MHz) |
TETRA |
TDMA |
Professional mobile radio and emergency communication |