Digital technology in the radio no longer are a novelty for many years actively promote the resolution standards tetra and p25, but these technologies are a "global solution" designed primarily for "the ministries and departments, and because of its high cost are not available to most organizations requiring operational radio. But technology develops, new solutions go, and in November 2007, Motorola officially announced the beginning of the sales line of digital radios mototrbo, on which one can build a radio network of any size. Digital radio mototrbo can add to the basic functions of analog radios - the voice talks, such new features as text messaging, caller identification coordinate with the integrated gps receiver, personal and group challenges and more. In addition, when using a digital transponder dr3000, physical channel using tdma technology is divided into 2 logical channel (2 time slots) that can send the same transponder 2 times more conversations or data. To construct the dispatching system based on digital radio mototrbo not need to "break" the old system of radio - digital radio can operate in analog mode. You can gradually replace the outdated and out of the analog radio system to the new digital radio mototrbo, while continuing to work in the analog channels before the complete replacement of the park radio. One must bear in mind that only with the full transition to digital technology mototrbo become available all the digital services. Initially, digital radio mototrbo provide relatively simple opportunities to build scalable systems, but as new versions of firmware are available such technologies "ip site connect" and "capacity plus". "Ip site connect" allows you to combine digital repeaters motorola dr3000 in a single network to cover large areas and "capacity plus" is a digital trunking system. Unfortunately, the description of these technologies is beyond the scope of this article. Whatever the technological solutions for developing communication systems were not applied its main task - to ensure the best quality connection through a radio channel between subscribers, so the more we consider the example of constructing a system of radio communication, which is typical for many organizations with a fleet of vehicles and dispatch center. This coupling scheme is widely used in many fields of activity: a taxi dispatcher, emergency services, collection departments, groups of mobile security, courier services and so on ... In "classical" construction of a system of radio communication on outdated analog radio equipment manager can only talk to the person who is not receiving any additional information about their whereabouts or condition - it does not even know whether the subscriber is within range of the radio, whether he had turned the radio station? Therefore, large amounts of time are the following conversations: - "Petrovich, where are you visiting?" - "Was at the center, two hours was a dump ..." - "Write the following address: ...." - And there should be a long explanation of where to go next and why the driver of that now can not. The radio channel is being used very inefficiently, there is no control over the subscribers. What are the advantages of digital radio? In radio mototrbo standard is used dmr, which means a fully digital channel, which eliminates the possibility of listening to your conversations by strangers, increased channel noise immunity and excellent intelligibility of speech at work even in very noisy environments. In digital radio system mototrbo, using radios motorola dm3401 and dm3601 with built-in gps receiver manager always knows where the car sees on an electronic map of current location, can analyze your past activities and to optimize the control lines of cars based on the current problems. The use of digital technology mototrbo improves the efficiency of the dispatch center, reduce fuel costs by monitoring routes and automate manufacturing processes. It is worth noting that all the functions of dispatch and control in digital radio mototrbo can be realized only with the help of software applications, such as trbonet.professional company Neocomian softvea. Annex trbonet.professional not only supports all the features inherent in the technology mototrbo, but in many cases, significantly expands their opportunities. Software control center trbonet can also specify multiple "control zone" on electronic maps to determine the boundaries, crossing where a given car on a dispatch console, a message will appear on violation of a given route. In the case of connecting the remote sensors embedded in the digital radio mototrbo there is the possibility of additional controls, such as: on-screen control room console trbonet can be seen on or off the ignition, as well as to monitor the opening / closing doors of vehicles. In order for the dispatcher can send the driver the address or phone number, it is enough simply to collect the necessary information on the keypad control room console, specify the subscriber, and in seconds a text message arrives at the subscriber station, and the manager always knows what the message was delivered - digital radio mototrbo automatically confirms message delivery. All of the information passing through the dispatch center trbonet, are automatically recorded in the database: voice negotiations, sending a text message, set the phone to customers, the state sensors - all this can listen to or view at any time. One important aspect in the construction of control center trbonet an application architecture trbonet.professional - «client - server". Digital radio dispatcher mototrbo physically connects to the server application and is installed in the most convenient in terms of building radio system location. The client part of the dispatcher console "(there may be few, and they can work in parallel) can be made via ip network (for example, through a local enterprise network or the Internet) at any convenient location for a dispatch center. Thus, in contrast to the analog radio, the dispatcher is not "tied" to the placement of radio equipment and achieved the necessary flexibility in the construction of the dispatch system, allowing for many variations of applications trbonet. What is needed to build a digital dispatch system? In the simplest case, the digital radio mototrbo, vehicle-mounted, a stationary station and a computer with installed application trbonet.professional.