DMR technology already supports over 12 million users worldwide and we’re here to see that continue to grow. This technology has applications within many different industries and sectors, with an innovative and creative manufacturer and user base constantly finding new areas of application.
Each of the sectors DMR works within has its own challenges and technical requirements; there is much that it is common however. We’re here to help our members meet the changing needs of their own sector by driving forward technical standards and understanding.
Campus and Hospitality
In this publically visible sector DMR has a prime role to play in security and staff communication. From bricks and mortar settings through to one off events fire alarms, panic alarm and lone worker security the technology is a mainstay.
To connect staff in a varied and fast moving environment in addition to the usual security concerns of large scale campuses is of prime importance; this is where DMR’s strong functionality can come to the front.
Across the globe government functions within all sectors and needs to maintain critical function, interoperability and cost effective operation. DMR offers the ability to be responsive to changing environments and needs.
Monitoring, stock control, logistics, security and communication, fire alarms and lone worker security are all areas key to this sector where DMR comes to work at its hardest. DMR offers considerable advantages over other systems on cost and reliability.
The technical and real-time needs of Oil and Gas means that DMR needs to meet the high standards required by these extreme and harsh environments. The standard and interoperability requirements become more crucial than ever in ensuring robust function.
The life maintaining responsibilities that run at the heart of this sector depend on the robust nature of all the technology in the operating chain. DMR allows operators to develop systems to support their business in the field and on site.
DMR is often the technology behind communication in this sector. Highly visible services need reliable support from start to finish and with guaranteed interoperability.
DMR offers a system that can work on and offsite, working right through the business sector from site to site. Security for both staff and assets remains a key concern.
Working to connect staff and sites securely and robustly means DMR operates at the highest levels to deliver effective private security services.
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 >