Supporting the
ETSI DMR Standard

The Digital Mobile Radio Association plays a crucial role
in the continued success and evolution of DMR technology, ultimately aiming to elevate the user experience.

The DMR air interface provides coverage similar to
analogue, offering the benefits of digital without
the need to increase the number of repeater sites.

The Digital Mobile Radio Association's application interface (AIS) presents a significant advancement, unlocking a new dimension of functionality and empowering users.

Our resolute team are proud to provide unrivalled support to its global members and the assurance that digital mobile radio is the most widely used digital radio standard for the business world.

The DMR Association’s mission, since 2005, has been to support the European Telecommunications Standards Institute during the DMR standardisation process. To provide the ultimate service to our members we focus on the commercial applications of DMR comprised in Tier II and Tier III.

We welcome new members from across the globe. Whether you are a business that utilises DMR, or an individual that supports the professional use of the DMR standard, you’ll be in great company. We truly appreciate your help in enabling us to drive forward our mission.

Improving standards:
Elevating experiences

We combine our knowledge and expertise with education, awareness, certification, and interoperability training to guarantee that today’s digital radio technology customers experience the highest level of service. We invest our time and energy to futureproof your investments.

As a member of the DMR Association you’ll benefit from the frequent and direct communications that we hold with global regulators, trade bodies and standards organisations. We are committed to ensure that all DMR products reach the market within a successful, open, multi-vendor chain and that our members gain from continuous, competitive development.

The DMR Applications Interface (AIS) represents a significant advancement in the digital mobile radio (DMR) ecosystem, supporting standardised interoperability between diverse technologies and manufacturers.

Application Interface (AIS)

DMRA News

Please join us in welcoming
Remotatec as a category 2 member.

Remotatec, a developer of cutting-edge communication technologies from Brazil, empowers organisations to optimise mission-critical operations. Committed to sustainability and innovation, they focus on solutions that address current needs and anticipate future demands.

Their offerings include the TXROIP Desk Console: This user-friendly dispatch console accelerates response times through a multi-touch interface and integration of various tools. Also the TXROIP Interoperability Gateway: This gateway expands the system's reach by enabling connection to diverse radios and networks. And the TXROIP System: This unified platform integrates radio, telephony, GPS, and video monitoring for seamless communication management. Remotatec's Amparo System solution integrates existing monitoring systems with a central hub, enabling real-time image and voice interaction between users and responders.

Welcome Remotatec to the DMR Association

Welcome Funkwerk Systems GmbH

Funkwerk is a specialist in voice and data communications via analog and digital mobile networks. Since 1982, the company has been developing and producing train radio technology for installation in rail vehicles, mobile devices and handhelds, integrating pioneering technologies and considering the latest standards.

Welcome Micromap Group

Micromap Group: Your Trusted Partner in India for Seamless Communication with CONVEY DMR Radios. Micromap Group has a proud history of being at the forefront of communication solutions. Micromap earned the trust of prestigious clients by delivering reliable & innovative technology.

Welcome Astronics Test Systems

Astronics Test Systems (ATS) ensures optimal performance through innovative test solutions. Astronics LMR test equipment is used worldwide by self-maintained law enforcement agencies, utilities, railroads, airlines, defense and radio dealers who maintain their customers’ radio systems.

The DMR Association: Powering DMR Forward

The DMR Association unites key players in Digital Mobile Radio (DMR) technology. Our diverse membership of over 200 companies fosters innovation, drives adoption, and ensures industry standards. Visit our members page to connect with DMR experts and unlock the full potential of digital radio.

The DMR Association: Your trusted partner for digital radio Success, boasts a diverse membership of organisations who play a crucial role in the development and widespread adoption of DMR technology.

Members of the Association >

Key features of the DMR standard

Interoperability between manufacturers
Backwards spectrum compatibility
State of the art Forward Error Correction
Options for traffic encryption

IP Data
Fast Automatic Vehicle Localisation (AVL)
Optional encryption for secure communications
Direct Mode of operation

Doubling of capacity in existing channels
Data applications interface (AIS)
Two-slot Time Division (TDMA) operation
Green credentials

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 >

Optimising standards, extending capabilities, and reducing costs through the creation of multiple and mutually compatible products.

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 Standards