Network

A Network is a connected system of devices, equipment and infrastructureRadio infrastructure is the equipment and supporting systems behind a professional two-way radio network, including repeaters, antennas, base stations, network connections, power systems and dispatch equipment. that allows information to be exchanged between users and locations.

In two-way radio, a radio network connects radios and other communication equipment so that users can communicate across a defined area. A network can range from a small group of radios communicating directly to a large system using repeaters, multiple sites and connected communications infrastructure.

What is a radio network?

A radio network is a communication system made up of radio equipment and, where required, supporting infrastructure.

A typical professional radio network may include:

• Handheld radios
• Mobile radios
• Base stations
• Repeaters
• Antennas
• Control equipment
• Dispatch systems
• Network connections
• Management software

The exact configuration depends on the size and requirements of the organisation.

Simple radio network

The simplest radio network may consist of several handheld radios communicating directly with each other.

For example:

Handheld Radio ↔ Handheld Radio

This type of system is suitable where users are operating within the direct coverageRadio Coverage is the geographical area in which a two-way radio system can provide reliable communication. Coverage depends on the radios, antennas, frequency, terrain, buildings and system infrastructure. of the radios.

Radio network with a repeater

A larger system can use a RepeaterA Repeater receives a two-way radio transmission and retransmits it, usually from an elevated location, to extend the coverage and reliability of a radio communication system. to extend coverage.

For example:

Handheld Radio → Repeater → Handheld Radio

The repeater receives a transmissionTransmission is the process of sending voice, data or signalling from a radio using a radio-frequency signal to another radio, repeater or communication system. and retransmits it, allowing radios to communicate across a greater area than may be possible directly.

Multi-site radio network

Organisations operating across multiple locations can connect radio sites together.

For example:

Site A → Network Connection → Site B

Users at different locations can then communicate through the connected radio systemA Radio System is a complete communication solution comprising two-way radios and, where required, equipment such as repeaters, antennas, base stations, mobile radios and network infrastructure..

Technologies such as IP Site ConnectIP Site Connect links compatible DMR radio sites using an IP network, allowing selected radio communications to be shared between separate buildings, facilities or geographical locations. can be used with compatible radio systems to connect sites over an IP network.

Radio network infrastructure

Infrastructure refers to the equipment supporting communication between radio users.

This can include:

• Repeaters
• Antennas
• Base stations
• Controllers
• Network equipment
• Servers
• Dispatch systems
• PowerAn antenna transmits and receives radio-frequency signals, allowing a two-way radio to communicate. Antenna type, frequency, height and location can all affect radio performance and coverage. systems

Infrastructure becomes increasingly important as the size and geographical coverage of a radio network increases.

Network coverage

Network coverage is the geographical area in which users can communicate reliably.

Coverage depends on factors including:

• FrequencyAn antenna transmits and receives radio-frequency signals, allowing a two-way radio to communicate. Antenna type, frequency, height and location can all affect radio performance and coverage.
• Transmitter power
• AntennaAn antenna transmits and receives radio-frequency signals, allowing a two-way radio to communicate. Antenna type, frequency, height and location can all affect radio performance and coverage. height
• Antenna position
• Terrain
• BuildingsAn antenna transmits and receives radio-frequency signals, allowing a two-way radio to communicate. Antenna type, frequency, height and location can all affect radio performance and coverage.
• Repeater locations
• Number of radio sites
• Network design

A well-designed network can provide substantially greater coverage than individual radios operating without infrastructure.

Network capacity

Network capacity refers to the number of users and communications that a radio system can support.

As the number of users increases, organisations may require technologies such as:

• Multiple channels
• Repeaters
• Talkgroups
• Trunking
• Multiple sites
• Network management

The appropriate solution depends on the number of users and how frequently they need to communicate.

Network channels

A radio network can contain multiple Channels.

Different channels can be assigned to different teams or activities.

For example:

• ChannelA two-way radio channel is a programmed set of communication settings, typically including frequency and signalling, that allows compatible radios to communicate with one another. 1 – Operations
• Channel 2 – Security
• Channel 3 – Maintenance
• Channel 4 – Management

Digital systems can also use Talkgroups to organise users.

Network talkgroups

A Talkgroup allows a defined group of users to communicate with each other.

This can be useful in larger organisations where different departments need their own communication groups.

A network might therefore contain:

Operations Talkgroup + Security Talkgroup + Maintenance Talkgroup

Network and digital radio

Digital radio networks can provide features beyond basic voice communication.

Depending on the technology, these may include:

• Group calls
• Individual calls
• GPS
• Emergency alerts
• Text messaging
• Data
• EncryptionEncryption protects two-way radio communications by converting voice or data into a secure form that can only be understood by authorised radios with the correct encryption capability and keys.
• Dispatch
• Remote management

DMR (Digital Mobile RadioA Mobile Radio is a two-way radio designed to be installed in a vehicle. It normally uses the vehicle's power supply and an external antenna to provide reliable communication while travelling or working in the field.) is one example of a professional digital radio technology used to build radio networks.

Network and analogue radio

Analogue radios can also operate as part of a network.

A basic analogue system may use direct radio-to-radio communication, while a larger system can incorporate repeaters and multiple channels.

Network and DMR

DMR networks can range from small systems to large multi-site deployments.

A professional DMR network may include:

Handheld Radios + Mobile Radios + Repeaters + Talkgroups + Network Infrastructure

Larger systems can incorporate trunking and centralised management.

Network and MOTOTRBO™

MOTOTRBO™MOTOTRBO™ is Motorola Solutions' professional digital two-way radio platform, based on the DMR standard. It supports business communication ranging from simple radio systems to multi-site networks. is a professional digital radio platform based on the DMR standard.

MOTOTRBO™ networks can be configured for individual sites or connected across multiple locations.

Depending on the system, features can include:

• Group calling
• Individual calling
• GPS
• Emergency functions
• Data
• Encryption
• Dispatch
• IP networking

Network and trunking

Trunking allows multiple users and communication groups to share a pool of radio channels.

Instead of permanently assigning one channel to each group, the network dynamically allocates available resources.

Trunking can improve capacity and make larger radio systems easier to manage.

Network and Capacity Plus

Capacity Plus is a trunking solution available for compatible MOTOTRBO™ systems.

It allows multiple radio users and groups to share available channels efficiently.

Network and Capacity Max

Capacity Max is a larger-scale MOTOTRBO™ trunking architecture designed for more complex and multi-site networks.

It can provide centralised management and scalable communication across connected radio sites.

Network and IP connectivity

Modern radio networks can use IP networks to connect radio infrastructure.

For example:

Radio Site → IP Network → Radio Site

This can allow geographically separated locations to operate as part of a connected communication system.

Network and IP Site Connect

IP Site Connect allows compatible radio systems to connect sites using an IP network.

This can be useful for organisations with:

• Multiple buildings
• Multiple depots
• Regional offices
• Large operational areas
• Separate radio sites

Network and dispatch

A Dispatch system can provide centralised control of radio communications.

A dispatcher may be able to:

• Communicate with individual users
• Contact talkgroups
• Monitor communications
• Receive emergency alerts
• View GPS locations
• Coordinate incidents

This can be particularly useful for organisations with a central control room.

Network and cloud dispatch

Some modern radio networks can connect to Cloud DispatchCloud Dispatch is a cloud-based radio management and communication system that allows authorised dispatchers to communicate with, monitor and manage two-way radio users through an internet-connected platform. platforms.

This can allow authorised users to manage communications through a cloud-based service.

Cloud-based systems may provide functions such as:

• Group communication
• Individual calls
• GPS location
• User management
• Emergency alerts
• Communication monitoring

The available features depend on the platform.

Network management

Cloud ManagementCloud Management uses an online platform to remotely manage and monitor compatible two-way radios, users, devices and communication settings from a central location. or on-premise management systems can allow administrators to configure and manage radio networks.

Depending on the system, this may include:

• Users
• Radios
• Channels
• Talkgroups
• Permissions
• Radio configurations
• Software
• Network settings

Network monitoring

Professional radio networks can be monitored to identify problems with equipment, connectivity or coverage.

Monitoring can help operators identify:

• Repeater faults
• Network connection failures
• Equipment problems
• Coverage issues
• Capacity problems

Network failover

A radio network can be designed with FailoverFailover allows a two-way radio system to switch to backup equipment, infrastructure or communication routes when the primary system fails, helping maintain communications. arrangements to maintain communication if part of the system becomes unavailable.

For example, redundant equipment, network connections or backup communication methods can be used to improve resilience.

The appropriate approach depends on how critical the communication system is.

Network redundancy

Redundancy means providing additional equipment or communication paths so that a single failure does not necessarily bring down the entire system.

This can include:

• Backup power
• Redundant network connections
• Multiple radio sites
• Backup repeaters
• Alternative communication systems

Network emergency communication

Professional radio networks can provide emergency communication features.

Depending on the system, an emergency alert can be sent through the network to a dispatcher or defined group.

For example:

Emergency ButtonAn Emergency Button is a dedicated two-way radio control that allows users to quickly send an emergency alert to a dispatcher, control room or authorised radio users. → Radio Network → Dispatcher

The network must have suitable coverage and connectivity for the alert to be received.

Network GPS

Compatible radios can transmit GPS information through a radio network.

This can allow authorised users or dispatchers to view the location of:

• Vehicles
• Field workers
• Radio users

GPS functionality depends on the radio, network and software.

Network fleet management

A radio network can integrate with Fleet ManagementFleet Management is the process of managing a two-way radio fleet, including equipment, users, programming, maintenance, firmware, security and radio system configuration. systems.

This can combine vehicle communication with location and operational information.

For example:

Vehicle Radio + GPS → Radio Network → Fleet Management Platform

Network job tracking

Compatible radio networks can support Job TrackingJob Tracking is the process of monitoring the progress, status and, where supported, location of a job or field worker from assignment through to completion, often using GPS, radio and dispatch systems. applications.

This can allow organisations to coordinate mobile workers and vehicles while maintaining radio communication.

Network incident management

Radio networks can integrate with Incident ManagementIncident Management is the process of coordinating people, communications and resources during an incident. Two-way radios can provide rapid communication between teams, control rooms and responders. systems.

Emergency alerts or operational communications can potentially be linked to incident-management workflows.

This can help control-room teams coordinate responses.

Network encryption

Digital radio networks can support Encryption where compatible equipment and system configurations provide it.

Encryption can help protect communications from unauthorised listening.

The security capabilities available depend on the radio technology and system.

Network call recording

Compatible radio networks can be connected to Call RecordingCall Recording is a two-way radio feature or system function that captures and stores radio communications for later playback, review, incident investigation or record keeping. systems.

This can provide a record of radio communications for organisations that require recording.

Recording must be implemented appropriately for the system and applicable requirements.

Network interoperability

InteroperabilityInteroperability is the ability of different communication systems, devices or organisations to work together and exchange information. In two-way radio, it can connect different radio networks, technologies or users through compatible systems or gateways. allows different communication systems or technologies to work together.

A radio network can potentially be connected with:

• Other radio networks
• PoC systems
• Telephone systems
• Cellular networks
• Dispatch platforms
• Control-room systems

The required equipment depends on the systems being connected.

Network and hybrid communication

Hybrid CommunicationHybrid Communication combines two or more communication technologies, such as two-way radio, DMR, cellular, Wi-Fi or IP networks, allowing different systems or users to communicate through a common platform. combines different communication technologies into a single operational environment.

For example:

Professional Radio + Cellular + Wi-FiWi-Fi is a wireless networking technology that connects compatible devices to a local or wider network. In radio systems, it can support programming, updates, data services and IP-based communications. + Cloud Platform

This can allow users on different types of devices to communicate through a common system.

Network and Push-to-Talk over Cellular

Push-to-Talk over Cellular (PoC)Push-to-Talk over Cellular (PoC) provides radio-style push-to-talk communication over cellular or IP networks, allowing users to communicate across wide areas where suitable network connectivity is available. uses cellular or broadbandBroadband is a high-speed data connection used by systems such as PoC radio to carry voice, video and other communications over mobile networks, Wi-Fi or IP networks. networks rather than traditional radio frequencies.

PoC can be used alongside professional radio to provide communication outside the geographical coverage of a conventional radio network where cellular connectivity is available.

Network roaming

Some professional radio networks allow radios to move between connected sites while maintaining communication.

This can be useful for:

• Transport fleets
• Utilities
• Security teams
• Logistics
• Large organisations

The exact roamingRoaming allows a compatible two-way radio to move between different radio sites or coverage areas, automatically selecting an appropriate site as the user moves. capability depends on the radio system.

Network frequency planning

Professional radio networks require appropriate FrequencyFrequency is the number of cycles a radio wave completes each second, measured in Hertz. In two-way radio, frequency determines where a transmission operates within the radio spectrum. planning.

Frequency planning considers:

• Available spectrumSpectrum is the range of radio frequencies used for wireless communication. Two-way radios operate within specific parts of the radio spectrum, subject to frequency allocation and licensing requirements.
• Channel spacing
• InterferenceRadio interference occurs when unwanted radio-frequency signals or electrical noise disrupt two-way radio communications, causing distorted audio, broken transmissions, reduced coverage or loss of communication.
• Coverage
• Repeater locations
• Number of users
• Licensing requirements

In the UK, professional radio frequencies are regulated by OfcomOfcom (Office of Communications) is the UK's communications regulator. For two-way radio users, Ofcom manages and regulates access to radio spectrum and the use of radio frequencies in the UK..

Network interference

Interference can reduce the reliability of a radio network.

Potential causes include:

• Other radio users
• Poor frequency coordination
• Electrical equipment
• Incorrect antenna installations
• Adjacent-channel interference
• Equipment faults

Proper system design and frequency coordination can help reduce interference.

Network dead spots

A Dead SpotA Dead Spot is an area where two-way radio communication is weak, unreliable or unavailable. Dead spots can be caused by buildings, terrain, distance, interference or inadequate radio coverage. is an area where radio coverage is unavailable or unreliable.

Dead spots can be caused by:

• Buildings
• Terrain
• Distance from repeaters
• Poor antenna positioning
• Network design
• Radio frequency

Site surveys can help identify coverage problems before a system is installed.

Network site survey

A Site SurveyA Site Survey is an assessment of a location to determine whether a two-way radio system will provide the required coverage, reliability and performance. can be used to assess radio coverage and identify the equipment required.

A survey may consider:

• Building layout
• Terrain
• Antenna positions
• Repeater locations
• Expected user locations
• Coverage requirements
• Potential interference

For large or critical systems, a professional survey can help ensure the network is designed appropriately.

Network scalability

A scalable radio network can be expanded as an organisation grows.

Expansion may involve:

• Additional radios
• Additional channels
• More talkgroups
• Additional repeaters
• New sites
• Additional dispatch users
• New software integrations

Planning for future requirements can reduce the need for major system changes later.

Network for large sites

Large sites such as construction projects, factories, warehouses and events may require a network rather than simple radio-to-radio communication.

A typical system might include:

Handheld Radios → Repeater → Wider Site Coverage

Network for multiple locations

Businesses operating from multiple locations can connect radio systems between sites.

For example:

Depot A ↔ Network ↔ Depot B ↔ Network ↔ Depot C

This can allow users across different locations to communicate through a common radio system.

Network for events

Large events can use radio networks to coordinate:

• Security
• Event management
• Production
• Medical teams
• Stewards
• Transport
• Site operations

Separate talkgroups can be used for different teams.

Network for construction

Construction sites can use radio networks to coordinate workers, plant operators, site managers and security.

A repeater can be particularly useful on large or multi-level sites where direct radio coverage is limited.

Network for agriculture

Large farms can use radio networks to provide communication across fields and buildings.

A repeater positioned appropriately can improve coverage across the farm.

The system can combine:

Handheld Radios + Vehicle Radios + Repeater + Base StationA base station is a fixed two-way radio installed at a permanent location, allowing an operator to communicate with handheld or mobile radios across a site or operating area.

Network for transport and logistics

Transport organisations can use radio networks to connect vehicles, drivers, depots and control rooms.

Mobile radios can provide vehicle communication while handheld radios can be used by staff on foot.

Network for security

Security organisations can use radio networks to connect patrol teams, supervisors and control rooms.

Emergency functions and GPS can provide additional capabilities where supported.

Network for hospitality

Hotels, venues and hospitality businesses can use radio networks to coordinate operational teams.

Talkgroups can separate communications between departments such as:

• Security
• Maintenance
• Housekeeping
• Operations
• Events

Network and radio hire

Radio networks can be supplied as part of temporary Radio HireRadio Hire is the temporary rental of two-way radios and related communication equipment for events, projects and operational requirements, providing professional communication without purchasing the equipment. solutions.

For example:

Handheld Radios + Repeater + Base Station + Accessories

This can provide a temporary communication network for:

• Events
• Construction projects
• Film and television
• Security operations
• Temporary sites
• Agricultural operations

Network maintenance

Radio networks require appropriate maintenance to remain reliable.

Maintenance can include checking:

• Radios
• Repeaters
• Antennas
• Cabling
• Power supplies
• Batteries
• Network connections
• Software
• System configuration

Regular testing can help identify problems before they affect operations.

Network limitations

Radio networks have limitations that should be considered when designing a system.

These can include:

• Coverage limitations
• Frequency availability
• Interference
• Infrastructure requirements
• Licensing
• Network connectivity
• Power requirements
• Installation costs
• System complexity

The larger the network, the more important professional system design becomes.

Choosing a radio network

When planning a radio network, consider:

1. Number of users.
2. Geographic coverage.
3. Number of locations.
4. Indoor and outdoor coverage.
5. Handheld and mobile radios.
6. Repeater requirements.
7. Analogue or digital technology.
8. Talkgroups.
9. Emergency functions.
10. GPS and fleet tracking.
11. Dispatch requirements.
12. Encryption.
13. Network resilience.
14. Licensing.
15. Future expansion.

Network and DCS

DCS can design and supply professional two-way radio networks for businesses and organisations requiring reliable communication across a defined operational area.

A network can range from a small group of radios to a larger system incorporating repeaters, multiple sites, mobile radios, base stations, GPS and dispatch.

The appropriate network design depends on the operating environment, coverage requirements, number of users and level of communication required.