DMR Systems
Digital Mobile Radio (DMR) is a digital radio standard specified for professional mobile radio (PMR) users developed by the European Telecommunications Standards Institute (ETSI), and first ratified in 2005.
The standard is designed to operate within the existing 12.5kHz channel spacing used in licenced land mobile frequency bands globally and to meet future regulatory requirements for 6.25kHz channel equivalence. The primary goal is to specify affordable digital systems with low complexity. DMR provides voice, data and other supplementary services. Today, products designed to its specifications are sold in all regions of the world.
The DMR protocol covers unlicensed (Tier I), licensed conventional (Tier II) and licensed trunked (Tier III) modes of operation, although in practice commercial application is today focussed on the Tier II and III licensed categories. The standards that define DMR consist of four documents. These can be downloaded free of charge from the ETSI website.
Our Product
Our flexible digital radio systems are able to grow with your requirements – from a small number of radios on a single site to nationwide networks with thousands of users. Fully ETSI-compliant, flexible and cost-effective, our DMR systems provide a smooth and gradual migration path from existing analoge radio systems.
DMR Tier II – Linking up to 32 repeaters via a standard IP network expand the capability of your system, extend coverage into poor coverage areas and allow you to talk effortlessly to colleagues at remote locations, country- or even worldwide.
DMR Tier III – Link up to 1,000 sites and connect up to 50,000 users, our trunked controllers expand the capacity and coverage of your system. Accessible via a web session interface, our network administrator software package provides in-depth control of all aspects of your radio network, including absolute control of users remotely.
Dispatcher applications provide GPS mapping and call logging of radio users; configuration and management of terminals in the field; and comprehensive call management, all via an intuitive user interface.
Our robust, IP67 rated hand-portables offer integrated voice and data communications, our mobiles, up to 45W of RF power, improved noise rejection and enhanced error correction, giving crystal clear audio even in high-noise environments.
A wide choice of accessories enables personalization and maximizes comfort.
