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 licensed 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 focused on the Tier II and III licensed categories.
The standards that define DMR consist of four documents which can be downloaded free of charge from the ETSI website, as well as the console wireline interface standard, AIS.
Catalyst Communications Technologies is a member of the DMR Association, which is a global organization focused on helping to make DMR the most widely supported 21st century digital radio standard for the business world. Many worldwide radio manufacturers have developed radio equipment to operate on the DMR standard, thus increasing competition and product availability. Catalyst can provide both a wireless and a wireline (AIS) interface to DMR systems.
All of the Catalyst Dispatch products (IP Console, Propulsion, DTD, ICE, and IP Soft) interface to DMR control stations. The following DMR radio features are available and vary by product:
|Wireline Interface (AIS)||Instant Recall Recording|
|Group Voice Call||Call Alert|
|Individual Unit Call||Unit Disable|
|Channel Change||Unit Enable|
|Caller Alias Display (& Unit ID)||Radio Check|
|Emergency Status||Radio texting to & from dispatch console|
|All Call||Free-form & Canned Text Messages|
Catalyst has multiple customers using DMR radios with its products; for example, Wake Forest University uses a Catalyst console and DMR for primary dispatch. For a press release regarding the installation click here.