Digital radio standards

dPMR

FDMA

Icom IDAS dPMR
Kenwood dPMR to be introduced?
(current Kenwood Nexedge equipment can be flashed for dPMR )

some dPMR features

• ETSI compliant
• up to 16 repeaters linked
• 3,6kbps data in 6,25k channel

NXDN

FDMA,  AMBE+2 Vocoder codec

Kenwood NEXEDGE
Icom IDAS NXDN

some NXDN features:

• 16 RAN (radio access number) for group site sharing
• 16 to 48 linked repeaters
• Icom and Kenwood equipment are compatible (at least for basic functions) 

DMR

TDMA

Motorola Mototrbo
Hytera