The DMR Association welcomes you

We’re here for our members, working worldwide, to continuously reaffirm Digital Mobile Radio as the most widely used digital radio standard for the world.
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Applications Interfacing

We publish and maintain an application interface for vendors to extend the abilities of their DMR digital mobile radio systems.
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Cost-effective technology

The DMR air interface provides coverage similar to analogue, offering the benefits of digital without the need to increase the number of repeater sites.
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DMR - Trusted by 12 Million Users

Welcome to the DMR Association; we’re here for our members, working worldwide, to continuously reaffirm Digital Mobile Radio as the most widely used digital radio standard for the business world.

We began in 2005 as a group of market leading public mobile radio manufacturers to support ETSI during the DMR standardisation process.

The DMR Association’s Technical Working Group works constantly on the Interoperability process, providing standards certification for manufacturers, the majority of which is at the highest Tier 3 specification. Membership is open to all organisations or individuals where DMR is a regular part of their business and for those working to support the professional use of the DMR standard in other ways.

News and Events

The DMR Association is delighted to welcome
Tom Bohn (Motorola Solutions) as Chair of the Technical Working Group.

Tom has been an active member of the group for several years and recently played a key role in improving the DMR feature set. We'd like to take this opportunity to thank Tom for his continued commitment and wish him all the best in his new position.

Mario Micheli - Chair of the DMR Association

Tom Bohn Chair of the Technical Working Group DMR Association

Etherstack Upgrades DMRA Membership
Etherstack upgrade membership

The DMRA are delighted to announce that Etherstack have upgraded their membership to Category 1. Etherstack specialise in wireless communications technologies for customers in public safety, defence, utilities & mining industries. Visit Members page >

DMRA welcomes Huiruisitong Technology
Welcome, Huiruisitong Technology

The DMR Association are pleased to welcome Guangzhou Huiruisitong Technology Co., Ltd, a native R&D enterprise that masters core technologies to develop high-end equipment. They join us as a Category 1 member. Visit Members page >

LS Elektronik AB - DMR Association
Welcome, LS Elektronik AB

The DMR Association are delighted to welcome LS Elektronik as a category 2 member. Based in Sweden, LS Elektronik produce the world renowned IP dispatch system Mimer SoftRadio, Sirius rugged remote and X-Link. Visit Showcase page >

DMR technology is already supporting
over 12 Million users worldwide.

DMR Key Benefits

Our Mission

By using a combination of education, awareness, certification and interoperability training we operate to make sure that business buyers of today’s digital radio technology have the security of knowing that they are investing in the future.

Here at the DMR Association we provide our membership with the resources necessary to make certain that DMR products reach the market within a successful, open, multi-vendor chain. We’re in frequent and direct dialogue with regulators, trade bodies and standards organisations around the world to maintain the standard.

DMRA Mission

DMR applications interface (AIS) standards unify interoperable voice and data solutions.

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Key features of the DMR standard

  • Interoperability between manufacturers
  • Backwards spectrum compatibility
  • State of the art Forward Error Correction
  • IP Data
  • Fast Automatic Vehicle Localisation (AVL)
  • Optional encryption for secure communications
  • Doubling of capacity in existing channels
  • Data applications interface (AIS)
  • Two-slot Time Division (TDMA) operation

DMR enables a single 12.5 kHz channel to support two simultaneous and independent calls. This is achieved using TDMA, Time Division Multiple Access. Under TDMA DMR retains the 12.5 kHz channel width and divides it into two alternating timeslots A and B where each timeslot acts as a separate communication path.

Each communication path is active for half of the time in 12.5 kHz of bandwidth, each uses an equivalent bandwidth of half x 12.5 kHz or 6.25 kHz. This is known as having an efficiency of one talk path per 6.25kHz of spectrum. However with DMR the channel as a whole maintains the same profile as an analogue 12.5kHz signal.

This means that DMR radios operate in the licence holders existing 12.5 kHz or 25 kHz channels; there is therefore no need for re-banding or re-licensing but at the channel capacity is doubled. Read More >

DMR Double Capacity

DMR, Digital Mobile Radio, developed by ETSI, European Telecommunications Standards Institute, and first ratified in 2005.

The DMR Standards