Digital Tier II Radio Systems
Reliable Digital Communication for Professional Users
What is Digital Tier II Radio Systems?
Digital Tier II Radio Systems is a digital radio standard defined by ETSI (European Telecommunications Standards Institute) for conventional (non-trunked) licensed radio systems. It’s designed to deliver high-quality voice and data communications for professional users operating on single or multiple sites.
Replacing analog two-way radios, Digital Tier II Radio Systems provide significant improvements in audio clarity, channel efficiency, and battery life—making them ideal for businesses looking to upgrade their communications infrastructure without the complexity of a trunked system.
Two-way communication.
One-way thinking.
Key Features of Digital Tier II Radio Systems
Two-Slot TDMA Technology
Delivers two voice paths per channel, doubling your capacity without needing additional licenses or frequencies.
Crystal-Clear Audio
Digital noise suppression ensures clear voice communication, even in noisy environments.
Private, Group & All-Call Support
Flexible call types to meet operational needs—from individual chats to team-wide broadcasts.
Text Messaging & Data
Send messages, job tickets, and short data bursts directly to and from the radio.
Improved Battery Life
TDMA reduces power consumption, allowing radios to operate longer on a single charge.
Enhanced Security
Includes authentication and encryption options to protect your communications from unauthorized access.
Benefits of DMR Tier II
- Easy Migration from Analog
Many DMR Tier II radios support analog and digital modes, allowing for a smooth transition. - Cost-Effective Digital Upgrade
Enjoy the benefits of digital communications without the need for a full trunked system. - Increased Spectrum Efficiency
Maximize your frequency usage with dual-slot TDMA on a single 12.5 kHz channel. - Scalable & Flexible
Ideal for single-site operations, with optional support for IP-connected repeaters to expand coverage across sites.
Common Use Cases
- Manufacturing & Warehousing
Coordinate teams, manage safety, and streamline operations. - Hospitality & Events
Improve guest service and staff coordination discreetly and efficiently. - Security Services
Maintain real-time communication with guards and response teams. - Retail & Shopping Centers
Enable seamless communication between departments and management. - Construction Sites
Ensure site-wide safety and operational efficiency. - Aviation
Communication throughout operations, enhanced safety and improved service
Step Into Digital Without Overcomplicating Your System
For teams ready to move beyond analog but not looking for a full trunked network, DMR Tier II offers the perfect balance. It brings the clarity, efficiency, and data capabilities of digital communication to conventional radio systems—without the need for complex infrastructure or costly upgrades.
DMR Tier II is built for everyday reliability across industries like manufacturing, security, hospitality, and aviation. Diversified Communication Group helps you deploy Tier II systems tailored to your environment—so you get stronger communication, better performance, and a scalable path forward.