What DMR is
DMR is an open digital radio standard used worldwide by businesses, industry and public works. It splits each 12.5 kHz channel into two time slots, so one repeater carries two separate conversations at once.
Digital audio stays clear out to the edge of coverage, where analog would turn to static, and the radios get longer battery life.
System types
Conventional (Tier II)
One or more repeaters, with talkgroups on each time slot. The most common setup and the easiest step up from analog.
Multi-site
Repeaters at several sites linked over a network, so users can talk across buildings, towns or a whole region.
Trunked (Tier III)
Channels are shared automatically among many talkgroups, for larger fleets that would otherwise run out of channels.
Features
- Text messaging between radios
- GPS location shown on a dispatch map
- Lone-worker and man-down alarms
- Private calls to one radio
- Emergency button with priority
- Optional encryption, from basic privacy to AES-256
Good fit for
Manufacturing and warehouses, utilities, public works and transit, school districts, hospitals, security teams and other organizations that need more than analog but don't require P25.
Mixing analog and DMR
DMR repeaters and radios can run in mixed mode, handling analog and digital traffic on the same system. That lets you move a fleet to digital a few radios at a time.
Basic DMR voice works between brands, but features such as multi-site linking and trunking are often specific to one manufacturer. We'll tell you which features will work with your current radios before you buy.
We're trained on Motorola Solutions, Tait and Kenwood DMR equipment, and on Kenwood NXDN, a similar digital standard.
Call 484-341-KATA or send us a request.