DMR (Digital Mobile Radio) is an open standard digital communication technology defined by the European Telecommunications Standards Institute (ETSI) to provide low cost, efficient radio solutions. It is designed for high traffic applications over large coverage areas and is an excellent fit for cost-efficient mission critical systems.

MCS Digital successfully designed, implemented and maintains Australia’s first DMR Tier III Network for our client Qenos, a petrochemical & plastics manufacturer, delivering IEC Ex equipment suitable for use within hazardous and explosive environments.

We have also provided a DMR solution to Ivanhoe Girl’s Grammar School to meet their requirement for a cost-efficient, reliable and simple yet robust handset for direct mode communications ensuring safety during day-to-day operations.

The Three Tiers of DMR

Tier I products are for license-free use in the civil market and work under direct mode.

Tier II systems are directed towards the professional market and uses two time slot Time Division Multiple Access (TDMA) in 12.5 kHz channels under direct/relay mode in licensed frequency bands.

Tier III systems maintain the two time slot TDMA technology and apply trunking and supporting network management for greater flexibility and bandwidth efficiency.

As a non-proprietary technology, DMR is multi-vendor and backed by many leading radio manufacturers and component suppliers. As a result, customers can have confidence in the long term supply as well as the benefits of competition-driven feature development, supplier responsiveness and market pricing.

DMR Tier III Key Features

  • Two slot TDMA in 12.5 kHz channels achieving 6.25 kHz equivalence
  • Simultaneous voice and data
  • Superior coverage performance when compared with TETRA systems
  • Short Data Message (SDM) and packet data services
  • High level security encryption available
  • Off-the-shelf solutions optimised for GPS tracking, telemetry and transport
  • Supports SNMP for remote network management and operational maintenance

MCS Digital offers a range of DMR solutions from: