DMR - Digital Mobile Radio
Digital Mobile Radio (DMR) is an international open digital radio standard developed by the European Telecommunications Standards Institute (ETSI) and ratified in 2005. This standard is estimated to account for 75% of the global radio market. Most two way radio manufacturers now have DMR technology & products in their portfolios.
This technology like its big brother TETRA is also a TDMA based standard which means the radio divides the frequency into time slots. With this standard it is two slots and this has the benefit of allowing greater efficiency from infrastructure and licensing as two different radio user groups can concurrently use one frequency.
The DMR standard reduces the risk associated with the deployments of two way radio systems by providing access to a wide choice of independent vendors like 2826 to keep your digital two way radio running well into the future, irrespective of what happens to supplier arrangements.
Competition amongst manufacturers creates a dynamic market fostering innovation and makes DMR technology a safe choice for business.
Analog Technology
DMR TDMA Technology
The DMR standard is divided into three tiers:
- Tier 1 - Basic radio to radio communications
- Tier 11 - Uses a repeater to extend coverage. Each channel has two slots effectively reducing infrastructure and licensing costs.
- Tier 111 - This is a full control channel supported solution similar to TETRA. This tier is only recently becoming supported by manufacturers and is in it's infancy.
DMR supports backward compatibility to analogue modes of operation, providing a migration to digital two way radio without a complete upgrade needed.
Related
TETRA - Terrestrial Trunked Radio
TETRA is an international open digital radio standard developed by the European Telecommunications Standards Institute (ETSI).
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