Hytera DMR Tier-III Trunking
Open Standard Trunking

Applications

Security, Hospitals, Transportation, Events, Universities and more.

Highlights

• All-IP Architecture
  With an all-IP architecture and centralized networking, the solution utilizes infrastructure with modular design of system components in order to deliver high spectrum efficiency, fast access, advanced Security, wide coverage, flexible networking, affordable infrastructure and low maintenance costs.
• Strong Scalability
  Because of it’s strong scalability, Hytera DMR III solutions support networks of different topologies, including regional networks such as single-site network, or multiple-site nationwide networks.
• Open Standard
  DMR Trunking Systems comply with ETSI DMR open standard, and is an IP Based Digital Trunked System Infrastructure specifically designed to provide voice and data, dispatching and management with large capacity across various geographical areas.

Features

• Digital Voice, Superior Anti-interference and Voice Quality
  The digital voice compression technology of DMR terminals provides better noise reduction and preserves voice quality over a greater range than analog, especially at coverage edges, thanks to the application of narrowband encoder/decoder and digital correction technology. The digital process could filter noise and rebuild signal from degraded transmission, so that users can get better communication quality and wider coverage.
• Improved Spectrum Efficiency, Double Channel Capacity
  DMR two-slot TDMA technology reserves 12.5KHz bandwidth, and divides it into 2 alternate time slots, therefore one 12.5KHz channel could support 2 synchronized or individual calls. Each slot can operate as an individual communication channel and has equivalent bandwidth (6.25KHz), while this 12.5KHz is still able to interconnect with other analog 12.5KHz channels. DMR is fully compatible with already authorized PMR frequencies, so that users can get twice the channel capacity without reconfiguration or buying additional frequencies.
• Large Coverage, Low Networking Cost
  DMR Technology uses nonlinear amplifiers resulting in larger coverage and added technical advantages: In comparison with other digital technologies, the coverage of the base station is improved up to a 3:1 ratio with high operating efficiency and optimized power consumption.
• Save Investment on Infrastructure
  Another advantage of the DMR TDMA approach is that you get two channels with one repeater, one antenna, and a simple duplexer. Compared to FDMA solutions, two-slot TDMA allows you to achieve 6.25e KHz efficiency while minimizing investments on repeaters and combiner. FDMA requires a repeater for each channel, plus additional combiner and frequencies, and there’s a notable loss in signal quality and coverage when combiner is used in this way. DMR gets two stable channels with only one repeater, and does not require additional repeater or combiner, thereby investment of users on infrastructure will be greatly reduced, and the networking solutions can also be simplified.
• More Power Saving, Battery Life Extended
  Two-slot TDMA offers an optimized solution. Since an individual call uses only one of the two timeslots, it requires only half of the transmitter’s activity and power consumption. The two timeslots are in use alternatively, so that the transmitter is idle half of the time. For example, in a typical duty cycle of 5 percent transmitting, 5 percent receiving, and 90 percent standby, the transmit time accounts for a high proportion of the drain on the battery. By cutting the effective transmit time in half, two-slot TDMA can enable up to 40 percent improvement in talk time in comparison with analog radios. Because of the total power consumption of every call has been reduced, working time of the battery is extended and charging time interval becomes longer. Modern digital equipment also has sleep and power management features, which could also extend the battery life.
• Reliable Encryption Technology
  Enhanced Communication Privacy. Voice communications are easily monitored on analog channel. However, the signal could not be monitored when DMR digital technology is applied, unless signaling or ID (16,776,415 in total) is matched, thus the confidentiality of your communication is ensured. 7. Smooth Migration from Analog System & Terminal A DMR system uses constant envelope modulation like an MPT system, and both the terminal and system use nonlinear power amplifier, which makes it easier for MPT and DMR systems and terminals to adopt a multimode design. The DMR standard has inherited technical features of MPT and provides a smooth migration from analog MPT systems. DMR is compatible with both analog and digital systems. Analog and digital users could operate and be interoperable with each other in one network. DMR mobile terminals have the same coding rule, operation method and user habit with analog ones. Common application will not be impacted during the transition from analog to digital. The smooth transition includes three parts: spectrum, system and conventional terminal.
• Enriched Dispatch Function
  In addition to basic voice services such as individual call and group call, and basic data services such as SMS and status information, DMR has abundant dispatch functions which could meet dispatching requirements of public security, public utility, and many other industries, and set rules for various dispatching services.
• Scalable Data Applications for Increased ROI
  Featured by full digitization and IP soft-switch, DMR equipment obtains excellent scalability. DMR provides not only digital talkback function from end to end, but also data services including positioning, text message, telemetry, data transmission, radio controlling, etc. Furthermore, it provides rich secondary development interfaces for customers by proper plan and design of system software and hardware infrastructure. Users could tailor the system according to specific needs and explore more application services by secondary development. With increasing demand on data and voice communication, the above functions and features would greatly enrich data applications of the system; therefore, achieve higher return on investment (ROI).