DIPRA

Newtonstraße 18 • 12489 Berlin +49 30 75681-3 info@radiodata.biz

DIPRA® - Digital Professional Radio System based on DMR Tier III

DIPRA^® DMR Radio Networks

Digital Mobile Radio (DMR) as specified by the European Telecommunication Standards Institute (ETSI) was first published in 2006. The Technical Specifications TS 102 361-1 to TS 102 361-4 altogether describe the DMR Air Interface, whereas the Technical Report TR 102 398 outlines the general system design of DMR. The latter provides an overview, a description of the DMR services and facilities, technical background and radio aspects, protocol and service performance, and guidance on numbering and addressing.

DMR is specified in two categories, meaning to different degrees of complexity:

Tier II, a two-way radio specification with mobile terminals and repeaters operating in licensed spectrum,
Tier III, a trunked radio specification with mobile terminals and trunked radio networks operating in licensed spectrum

Both DMR tiers comprise a 2-slot TDMA (Time Division Multiple Access) air interface in radio channels of 12.5 kHz bandwidth, i.e. its effective bandwidth per channel is 6.25 kHz as an excellent prerequisite for the strong demand of today towards spectrum efficiency. DMR is meant to be operated in the general PMR bands, i.e. in the frequency ranges between 30 and 1000 MHz.

RADIODATA as one of the leading PMR companies in Germany has developed its DIPRA^® system (Digital Professional Radio) based on the ETSI Specification of DMR, with all subsystems as components available to deploy a PMR network:

DIPRA^® Switch SW2400, including voice transcoder, web-based network management and a Simple Network Management (SNMP) agent to interface to an external network management system
DIPRA^® DMR Basestation BS2400, as single-channel or multi-channel in standard or simulcast version
DIPRA^® DMR Mobile Radios and DMR Data Modems

DIPRA Components

DIPRA® - Switch SW2400
The DIPRA® Switch SW2400 fulfills two fundamental functions - it controls and monitors the entire DMR radio network and caters for the integration of mobile users into the voice and data communication of an organization.

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DIPRA® - Network Management
DIPRA® network management is a major function of the DIPRA® Switch SW2400. It is accessed via an external PC exploiting a standard web browser by entering the IP address assigned to network management. Further user access to network management functions is protected by pass words and users may be provided with different access rights.

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DIPRA® - Dispatcher
The DIPRA® dispatcher location serves as a means to manage a fleet of mobile users via a DIPRA® DMR Tier III radio retwork. It is connected to the DIPRA® switch exploiting an IP interface and facilitates a simple and intuitive call set-up by means of a Graphical User Interface (GUI).

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DIPRA® - Base Station BS2400
The versatile design of the DIPRA® basestation BS2400 pursues a modern, extensively digital approach to its RF frontends, also known as Software Defined Radio (SDR). The idea of an SDR based platform aims at RF receivers and transmitters which are to be configured by software. In implementing this, a powerful DSP and a Field Programmable Gate Array (FPGA) are both processing the digital base band signal. This approach provides very high potential for functional amendments in the future.

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RADIUM - DMR Radio Platform
RADIUM is a modern radio communication platform and serves as the basis for a wide variety of device variants. In the version for voice communication as an analogue or DMR Tier III radio, a connection via Bluetooth and WLAN is optionally available. The connection makes it possible to flexibly connect mobile phones (Android and iOS) to a DMR radio network. It is also possible to connect to a vehicle's hands-free system in order to meet current legal requirements. With an optional DECT...

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DIPRA® - DECT Handset for RADIODATA DMR mobile radios
Many users of company radio systems also need mobile communication outside of their vehicles. This is the case, for example, if the vehicle is parked in front of a business location and the employee should still be reachable by radio within the building or premises.

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DMR Simulcast
The RADIODATA DIPRA® Simulcast solution is based on the open ETSI specification DMR. The simulcast system supports the operation of DMR Tier II and DMR Tier III networks. Simulcast systems broadcast the same frequency over multiple overlapping locations simultaneously. The DIPRA® Simulcast system provides reliable DMR radio coverage over large areas and is ideal for utilities, public transport operators and related organizations operating with limited frequency resources over a large...

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Products

Optical RF Distribution

Optical RF disribution systems extend the RF coverage in large buildings

In-Building Coverage

Safe and secure commuinications in public buildings like hospitals, conferenc centers, malls, airports, train stations etc.

DIPRA® - Digital Professional Radio

Reliable DMR Tier II and Tier III communications systems

Mining Radio Communication

Radio Communication Systems tailored for the needs of mining companies

DMR-Simulcast

DMR -Simulcast solutions for Tier II and Tier III

Portable Mobile Radio

Portable Mobile Radio solutions

Audio Processing Gateway

A compact device to integrate digital and analog radio systems

RF-Components

High quality RF components for 50 MHz up to 500 MHz

Groundplane-AntennA

Groundplane-Antennas for analog and digital radio systems

DIPRA® - Digital Professional Radio System based on DMR Tier III

DIPRA® DMR Radio Networks

DIPRA Components

DIPRA® - Switch SW2400

DIPRA® - Network Management

DIPRA® - Dispatcher

DIPRA® - Base Station BS2400

RADIUM - DMR Radio Platform

DIPRA® - DECT Handset for RADIODATA DMR mobile radios

DMR Simulcast