Our digital two-way radios are based on the international standard DMR, Digital Mobile Radio. That means that almost all our models can be used even in analogue mode. We represent Motorola, who promote their DMR radios under the name MOTOTRBO™.
MOTOTRBO™ is the world’s most popular series of digital two-way radios and is completely based on Digital Mobile Radio. DMR combines the very best from conventional radio communications with the functionality of digital technology. That means the immediate and reliable communications of a two-way radio spiced with the data services of IP-technology. With the MOTOTRBO™ series you also gain access to a wide variety of applications for increasing efficiency and productivity. Applications like computer aided dispatch solutions, indoor positioning systems and telemetry.
The series offers a new generation digital two-way radios consisting of compact units, waterproof equipment and intrinsically safe models. Several radios also have integrated Bluetooth®, GPS and dynamic colour displays. In short, the radios are developed to take full advantage of the digital technology and ultimately support your operations.
The purpose of MOTOTRBO is to offer a range of DMR-based two-way radios that are truly futureproof while also allowing users to migrate their equipment in their own pace.
This is achieved due to that almost all models can be programmed with both analogue and digitals channels. This lets you continue with analogue communications until the whole organisation, department or team has been upgraded. This becomes even easier since most of the new models support analogue versions of selective signalling.
When strategic parts of the organisation has been migrated, they can switch to digital communications while still with the touch of a button switch back to an analogue channel to talk to the remaining co-workers. With Dynamic Mixed Mode (DMM) digital and analogue channels can even be used in the same system simultaneously. With DMM the repeater automatically senses if it is a digital or analogue signal that should be repeated.
Some of the newer models also have virtually the same accessories as their predecessors, which makes the transition even smoother.
Besides that the digitalisation results in improved performance most of the digital two-way radios in the MOTOTRBO™ family have been equipped with intelligent features to further increase capabilities.
MOTOTRBO™ uses advanced noise cancelling technology that efficiently recognises human speech and actively reduces ambient noise from machines, vehicles, wind, etc. Together with the improved receiver that results in an even audio throughout the coverage area. Many of the radios are also equipped with the feature Intelligent Audio that adjusts the speaker volume depending on the surroundings. A feature that also works with selected accessories.
A lot of the audio accessories in the MOTOTRBO™ series are so-called IMPRES™, which means that the accessories communicate with the radio to optimize audio levels and settings for the current combination of two-way radio and accessory.
In digital mode MOTOTRBO™ uses so-called TDMA that reduces the transmission time considerably (see chapter About Digital Mobile Radio) and results in noticeably better battery life. And since TDMA enables two simultaneous and independent calls on a single channel, twice as many users can communicate the same channel in digital mode compared to analogue. This is true even in direct mode.
The possibilities are probably the most noticeable thing about MOTOTRBO™. With the digital technology, product capabilities and the comprehensive range of applications the possibilities are almost endless.
With MOTOTRBO™ two-way radios are no longer restricted to pure voice calls. Since the digital transmissions handle both voice and data identically it is just as easy to transmit text messages, coordinates, diagnostic data or job tickets. And many models are also equipped with functionality previously not available on two-way radios.
With a digital two-way radio with built in GPS you can use one of the available applications for map based positioning. Together with integrated Bluetooth®, positioning can even be easily achieved indoors. This way operators can monitor all users continuously. Or by connecting a wireless RFID-reader to the radio security personnel can confirm their arrival at specific properties without the possibility to fool the system.
In the MOTOTRBO™ Applications Catalogue you can find plenty of applications that can simplify, improve or increase efficiency in your everyday operations. No matter if it concerns data gathering, call logging, remote control, dispatch solutions, telemetry, security features, email integration, radio management, solutions for easier transition to digital, etc, etc.
There are also software upgrades available for the MOTOTRBO™ repeaters that even further increases its capabilities, like IP Site Connect and Capacity Plus.
After being digitized the recorded data is filtered and compressed by focusing on human speech. This results in that ambient sounds are not noticeable on the receiver side.
Since Digital Mobile Radio (DMR) converts speech to a digital bit stream it manages both voice and data identically, a.k.a. they are integrated. As a result the equipment also provides transfers of data like text messaging.
Digital radio communications also provides a more consistent quality of sound throughout the coverage area. This due to that the data is sent as small packages which means they will either arrive intact or not at all. The diagram illustrates this principle. The area above the line of passable audibility equals the improvement in audibility while the area right of the intersection between the analogue signal and the line of passable audio shows the extended reach.
The simultaneous support for analogue and digital programming allows the equipment to be used in all digital DMR systems as well as conventional systems. Since the terminals can be programmed with both analogue and digital channels at the same time they can even be used in the different set-ups by simply turning the knob. This also lets you migrate your equipment in your own pace or rather, MIGRATE TO DIGITAL.
The repeaters in the MOTOTRBO™ family also support a so-called Dynamic Mixed Mode which means it senses if a radio is broadcasting digitally or in analogue and adjusts accordingly. Thanks to this you can let different departments or teams migrate separately from the rest of the organisation.
The other integral technology responsible for DMR’s benefits is TDMA, or Time Division Multiple Access. This is a method for dividing a discreet radio channel in time, to create what is known as timeslots which in practice act as two separate channels. The method enables two independent calls on the same discreet channel simultaneously, thereby doubling the capacity of the available channel. This is compared to FDMA, where you instead cut the channel spacing in half.
A two-way radio uses most energy when transmitting and since TDMA decreases transmission time it also results in an increase in battery life (a 30-40% increase according to tests performed).
Thanks to digitalisation, integrated voice and data and support for standardised interfaces (USB, etc) MOTOTRBO™ is easily integrated with other technologies. Since DMR is an international standard all information about its protocol is available to anyone.
This has led to that a lot of third party developers have developed applications and solutions that fit, utilize or improve on MOTOTRBO™. This continuous evolution has produced a considerable amount of value adding applications within;
Computer aided dispatch
Integration with services like Google Maps
Integration with other radio systems
Call logging/Voice recording
Motorola have also developed their own add-ons to their infrastructure to further increase capacity and capability of the systems.
The option IP Site Connect lets you connect base stations via IP to extend the coverage area. The option can also be used to create a unified system that covers different places, by connecting the base stations at the dispersed locations, no matter the distance.
The Capacity Plus option adds trunking to a MOTOTRBO™ system. Trunking is a method of letting individuals efficiently share a resource. I the world of radio communications this means that all users (radios) are normally placed in a rest channel (cue). When a call is placed it is automatically assigned a vacant channel. When ended the radios revert back to the rest channel and the used channel becomes vacant again. This way the system capacity can be substantially increased compared conventional systems/cues.