photo of GMDSS marine radio

What is a Global Maritime Distress Safety System? (GMDSS)

The Global Maritime Distress and Safety System (GMDSS) is like a guardian angel for mariners. It’s an internationally agreed-upon set of procedures, equipment, and communication protocols designed to enhance maritime safety and security. Think of it as a high-tech safety net for sailors.

Here’s what makes it tick:

  1. Distress Communication: GMDSS ensures that ships can communicate distress messages using various means, including satellite communication, high-frequency (HF) and very high-frequency (VHF) radios, and even digital selective calling (DSC) technology.
  2. Search and Rescue Coordination: It establishes a framework for coordinating search and rescue operations on a global scale. When a distress signal is sent, rescue coordination centers worldwide can work together to provide assistance.
  3. Navigational and Meteorological Warnings: GMDSS facilitates the broadcasting of navigational and meteorological warnings to vessels, keeping them informed about potential hazards and changing weather conditions.
  4. Automatic Identification System (AIS): GMDSS incorporates AIS, a system that enables ships to automatically communicate their identity, position, course, and speed to other vessels and shore stations. This helps prevent collisions and enhances situational awareness.
  5. Satellite Communication: GMDSS leverages satellite technology to ensure that distress signals can be transmitted globally, even in remote areas where traditional communication might be challenging.
  6. Emergency Position-Indicating Radio Beacons (EPIRBs): GMDSS mandates the use of EPIRBs on ships, which are devices that can automatically transmit distress signals with the vessel’s precise location to satellites.
  7. Search and Rescue Aircraft Coordination: It establishes procedures for coordinating communication between ships in distress and search and rescue aircraft, streamlining the rescue process.

In essence, GMDSS is a comprehensive and integrated system that combines various communication technologies to provide a robust safety infrastructure for mariners, ensuring that help is just a distress call away, no matter where they are on the high seas. It’s like having a global safety hotline for sailors!

ptt over cellular mast

Advantages of Vertical Dipole Antenna

A vertical dipole antenna is a type of antenna that consists of two conductive elements oriented vertically in parallel. This antenna design offers several advantages that make it a popular choice for various applications, particularly in the field of radio communication. Let’s explore the key advantages of a vertical dipole antenna:

  1. Omni-Directional Radiation Pattern: One of the primary advantages of a vertical dipole antenna is its omnidirectional radiation pattern. This means it radiates and receives signals equally in all directions around the vertical axis. This characteristic makes it suitable for applications where communication needs to occur in multiple directions without the need to constantly reorient the antenna.
  2. Simplicity of Design: Vertical dipole antennas are relatively simple in design, consisting of just two vertically oriented elements. This simplicity makes them easy to construct, install, and maintain, making them an attractive choice for amateur radio operators, radio enthusiasts, and temporary setups.
  3. Ease of Ground Installation: Vertical dipole antennas can be easily installed on the ground or mounted on a shorter mast, which simplifies the installation process. Their vertical orientation requires less vertical space compared to other antenna designs.
  4. Low Angle of Radiation: Vertical dipole antennas tend to have a lower angle of radiation compared to other types of antennas. This can be advantageous for long-range communication, as the signal can propagate more effectively over longer distances.
  5. Reduced RF Ground Current: The vertical dipole design inherently minimizes RF ground currents, which can help reduce interference with nearby objects or structures. This is particularly useful in locations with limited space or in environments where grounding issues may arise.
  6. Effective for Local and Regional Communication: Due to their low angle of radiation and omnidirectional pattern, vertical dipole antennas are well-suited for local and regional communication. They can provide reliable communication within a specific area, making them useful for community radio stations, emergency communication networks, and local amateur radio activities.
  7. Minimal Interaction with Surroundings: Vertical dipole antennas are less prone to interactions with nearby objects, buildings, and terrain compared to other types of antennas. This characteristic can help reduce signal blockage and signal distortion, ensuring more consistent and reliable communication.
  8. Balanced Current Distribution: The vertical orientation of the dipole elements helps maintain a balanced current distribution along the antenna, which can contribute to efficient signal transmission and reception.
  9. Compact Footprint: Vertical dipole antennas have a relatively small physical footprint, making them suitable for installations in locations with limited available space.
  10. Variety of Frequency Bands: Vertical dipole antennas can be designed and tuned for various frequency bands, allowing them to be used across a wide range of radio frequencies.

While vertical dipole antennas offer these advantages, it’s important to consider factors such as height above ground, nearby objects, and local terrain when installing and using them to optimize their performance. Overall, the vertical dipole antenna’s combination of simplicity, omnidirectional coverage, and ease of installation makes it a versatile choice for various communication needs

intrinsically safe

Why Radio Communications are Important In Marine Shipping

Radio communications play a crucial role in marine shipping for ensuring safe, efficient, and reliable operations at sea. Given the vast and often unpredictable nature of the maritime environment, effective communication is essential for maintaining maritime safety, coordinating vessel movements, responding to emergencies, and facilitating international shipping. Here are some reasons why radio communications are important in marine shipping:

1. Safety at Sea: Radio communications enable vessels to maintain contact with each other, maritime authorities, and shore-based facilities. This communication helps prevent collisions, navigate through hazardous areas, and respond to changing weather conditions. In emergencies, distress signals and calls for assistance can be quickly transmitted via radio, allowing nearby vessels and maritime rescue agencies to respond promptly.

2. Navigation and Traffic Control: Radio communication is vital for coordinating vessel movements, especially in busy and congested maritime areas. Vessels can receive navigational information, weather updates, and traffic advisories through radio communication, ensuring safe passage and minimizing the risk of accidents.

3. Search and Rescue Operations: In case of emergencies or distress situations, vessels can use radio communication to alert search and rescue authorities and nearby vessels. This enables rapid deployment of rescue operations and enhances the chances of successful outcomes for those in need of assistance.

4. Port Operations and Logistics: Radio communication facilitates efficient communication between ships and port authorities. Vessels can request berthing instructions, report cargo operations, and coordinate loading and unloading activities, ensuring smooth and timely port operations.

5. Compliance with Regulations: Radio communication is essential for vessels to comply with international maritime regulations and conventions. Ships are required to communicate their positions, intentions, and other relevant information to maritime authorities as part of navigational safety and regulatory compliance.

6. Distress and Emergency Situations: Radio communication allows vessels to broadcast distress signals, such as mayday calls, in case of emergencies like fire, flooding, or medical crises. Maritime rescue coordination centers can receive and respond to distress calls, initiating coordinated search and rescue efforts.

7. Maritime Security: Radio communication supports maritime security by enabling vessels to report suspicious activities, potential security threats, and illegal activities. This information helps maritime security agencies take appropriate actions to safeguard maritime assets and prevent maritime crime.

8. International Communication: As vessels traverse international waters and enter different countries’ maritime zones, radio communication enables vessels to establish contact with coastal authorities, customs, immigration, and other relevant agencies. This ensures compliance with entry and exit procedures and supports efficient international maritime trade.

In summary, radio communications are the backbone of maritime shipping operations, providing vessels with the means to communicate, navigate, and respond to various situations encountered at sea. By enabling real-time information exchange, coordination, and emergency response, radio communications contribute significantly to the safety, efficiency, and effectiveness of marine shipping.

Superyacht cybersecurity

Business Case for Superyacht Radio

Business Case: Integration of Two-Way Radio Systems for Enhanced Communication and Safety on Superyachts

Executive Summary: In the luxury yachting industry, seamless communication and uncompromised safety are paramount to delivering an exceptional onboard experience for guests and crew members. This business case advocates for the integration of advanced two-way radio systems on superyachts. By leveraging cutting-edge communication technology, we can significantly enhance operational efficiency, guest services, and crew coordination, while also prioritizing safety and emergency response capabilities.

Introduction: Superyachts represent the epitome of luxury travel and hospitality. However, the unique challenges posed by the marine environment, along with the need for prompt communication, require a specialized solution. Advanced two-way radio systems offer an ideal communication platform that can address these challenges and elevate the overall superyacht experience.

Advantages of Two-Way Radio Integration on Superyachts:

  1. Instant Communication: Two-way radios provide immediate push-to-talk communication, enabling real-time interactions among crew members, regardless of their locations on the yacht. This rapid communication enhances responsiveness and service delivery.
  2. Marine-Specific Coverage: Unlike mobile phones, two-way radios can operate in areas with limited or no cellular coverage, ensuring constant communication availability, even during offshore journeys or remote anchorages.
  3. Crew Coordination: Two-way radios facilitate efficient communication among various onboard departments, such as deck, engineering, hospitality, and security. This streamlined coordination enhances crew efficiency and guest services.
  4. Guest Experience: Crew members equipped with two-way radios can respond promptly to guest requests, ensuring a seamless and personalized experience. This enhances guest satisfaction and loyalty.
  5. Safety and Emergency Response: Two-way radios play a crucial role in emergency scenarios, enabling rapid communication during safety drills, medical incidents, fire emergencies, and other critical situations. Enhanced communication contributes to crew and guest safety.
  6. Navigation and Docking: Effective communication between the bridge and crew members during navigation, docking, and anchoring operations is essential for safe and precise maneuvers. Two-way radios enhance this communication, reducing the risk of accidents.
  7. Noise Reduction: Two-way radios facilitate clear communication in noisy or windy conditions, eliminating the need for shouting and reducing noise pollution on the yacht.

Operational Applications on Superyachts:

  1. Deck Operations: Two-way radios allow crew members to efficiently communicate during docking, anchoring, and watercraft launch operations, ensuring precise and safe maneuvers.
  2. Guest Services: Crew members equipped with two-way radios can promptly address guest requests, enhance service delivery, and provide an exceptional onboard experience.
  3. Engineering and Maintenance: Effective communication among engineering and maintenance teams ensures quick responses to technical issues, minimizing downtime and maintaining the yacht’s operational integrity.
  4. Emergency Drills and Scenarios: Two-way radios facilitate organised and efficient execution of safety drills, emergency protocols, and evacuation procedures, enhancing crew preparedness.
  5. Security and Surveillance: Security personnel can use two-way radios to monitor and respond to security concerns promptly, ensuring a secure environment for guests and crew.

Conclusion: The integration of advanced two-way radio systems on superyachts aligns seamlessly with our commitment to delivering unparalleled luxury, safety, and hospitality. By enhancing communication, crew coordination, and emergency response capabilities, we can elevate the onboard experience for guests while ensuring the utmost safety and operational efficiency. The investment in cutting-edge communication technology demonstrates our dedication to providing a world-class superyacht experience and sets us apart as leaders in the luxury yachting industry

procom uhf duplexer

Advantages of UHF for Two-Way-Radio

Ultra High Frequency (UHF) radio technology offers several advantages for two-way communication in various contexts. UHF operates within the frequency range of 300 MHz to 3 GHz and is commonly used for a wide range of applications, including public safety, industrial operations, security, and more. Here are some of the advantages of UHF for two-way radio communication:

  1. Signal Penetration: UHF signals have shorter wavelengths compared to VHF signals, which allows them to penetrate obstacles like buildings, walls, and foliage more effectively. This makes UHF suitable for indoor communication and urban environments where there may be many obstructions.
  2. Interference Mitigation: UHF signals are less susceptible to interference caused by other radio signals and electronic devices operating in the same frequency range. This helps ensure clearer and more reliable communication, particularly in areas with high radio frequency congestion.
  3. Shorter Antennas: UHF antennas are generally shorter than those used in lower frequency bands, making them more compact and convenient, especially for handheld radios.
  4. Higher Frequency Modulation: UHF can support higher frequency modulation, allowing for better audio quality and improved data transmission capabilities, such as text messaging and data applications.
  5. Privacy and Security: The ability to use more complex and secure modulation techniques on UHF frequencies can enhance privacy and security for sensitive communications.
  6. Dense Urban Environments: UHF’s ability to penetrate obstacles and its resistance to interference make it well-suited for communication in densely populated urban areas.
  7. Repeater Infrastructure: UHF signals work well with repeater systems, which are used to extend the communication range. UHF repeaters are often used in buildings, tunnels, and other areas with limited line-of-sight.
  8. Compatibility with Digital Systems: UHF is commonly used for both analog and digital communication systems, making it versatile for organizations transitioning from analog to digital technology.
  9. Range Flexibility: While UHF may have a slightly shorter open-field range compared to VHF, its ability to penetrate obstacles can compensate for this, making it suitable for a wide range of applications where coverage may be challenging.
  10. Healthcare and Industrial Settings: UHF is often used in healthcare facilities and industrial settings where reliable indoor communication is crucial for coordination and safety.
  11. Construction and Manufacturing: UHF radios are commonly used in construction sites and manufacturing plants, where the presence of buildings, machinery, and equipment necessitates reliable communication that can penetrate obstacles.
  12. Public Safety and Security: UHF is a popular choice for public safety agencies, security teams, and law enforcement due to its ability to provide reliable communication in various environments.

It’s important to carefully consider the specific needs and operational requirements of your communication system when choosing between VHF and UHF frequencies. Factors such as coverage area, potential interference sources, regulatory considerations, and the types of obstacles present in the environment will all influence the decision-making process.

Walkie Talkie Antenna

Advantages of VHF for Two-Way-Radio

Very High Frequency (VHF) radio technology offers several advantages for two-way communication in various settings. VHF operates within the frequency range of 30 MHz to 300 MHz and is commonly used for a wide range of applications, including public safety, maritime, aviation, and industrial use. Here are some of the advantages of VHF for two-way radio communication:

  1. Signal Propagation: VHF signals have relatively longer wavelengths compared to UHF (Ultra High Frequency) signals. This allows VHF signals to travel farther over open terrain and through obstructions, such as vegetation and buildings. VHF is well-suited for communication in rural and outdoor environments.
  2. Coverage Area: Due to its ability to travel longer distances, VHF is advantageous for providing coverage in larger geographic areas with fewer radio repeaters or infrastructure. This makes it cost-effective for wide-area communication, such as search and rescue operations, rural law enforcement, and forestry services.
  3. Interference Reduction: VHF signals are less prone to indoor reflections and multipath interference compared to UHF signals. This can result in improved signal reliability and clarity in indoor and urban environments.
  4. Simple Antennas: VHF antennas are generally shorter and more manageable than antennas designed for higher frequency bands. This can make the devices more portable and easier to use, especially in handheld radios.
  5. Battery Efficiency: VHF radios often require less power to transmit and receive signals compared to higher frequency bands. This can lead to longer battery life for portable radios, which is crucial in situations where access to charging facilities may be limited.
  6. License Availability: In some regions, VHF frequency licenses may be more readily available or less expensive than licenses for other frequency bands. This can be an important consideration for organizations operating on limited budgets.
  7. Compatibility with Analog Systems: Many legacy communication systems, especially in the public safety and industrial sectors, use analog VHF technology. For organizations looking to upgrade their systems while maintaining compatibility with existing infrastructure, VHF can be a suitable choice.
  8. Emergency Services: VHF is commonly used by emergency services, such as police, fire departments, and paramedics, due to its ability to provide reliable coverage over large areas and in challenging environments.
  9. Maritime and Aviation Use: VHF is widely used in maritime and aviation communications due to its ability to cover long distances over open water or airspace.
  10. Regulatory Considerations: Some regions have specific regulations that allocate certain frequency bands for VHF use, making it a regulated and controlled option for communication.

It’s important to note that while VHF offers these advantages, the choice of frequency band should be based on the specific needs of the application and the operating environment. Factors such as coverage requirements, potential interference sources, regulatory constraints, and compatibility with existing systems should all be considered when selecting a two-way radio technology.

Motorola DM4600E

Motorola DM4600

Title: Unleashing Communication Potential: Motorola DM4600 Two-Way Radio


In an era defined by instant connectivity, the Motorola DM4600 Two-Way Radio emerges as a beacon of efficient communication. With its advanced features and intuitive design, the DM4600 caters to the needs of professionals across various industries, ensuring seamless collaboration and safety. In this article, we will explore the key features, benefits, and diverse applications of the Motorola DM4600, highlighting how it continues to redefine communication standards.

A Glimpse into Excellence

The Motorola DM4600 Two-Way Radio is a versatile communication tool that bridges the gap between traditional radio systems and modern connectivity. It combines the reliability of two-way radio communication with the capabilities of digital technology, resulting in a powerful device that elevates communication to new heights.

Key Features

  1. Digital Advancements: The DM4600 operates on digital technology, enabling enhanced audio clarity, reduced interference, and improved coverage. This translates to crisp, clear conversations even in challenging environments.
  2. Dual-Mode Operation: Offering flexibility, the DM4600 supports both analog and digital operation, ensuring a smooth transition for organizations upgrading from analog systems. This feature is particularly useful for those seeking to maximize their existing infrastructure.
  3. Large Color Display: The radio is equipped with a large, vibrant color display that provides at-a-glance access to essential information, including contacts, call history, and text messages. This intuitive interface streamlines navigation and enhances user experience.
  4. Integrated Data Capabilities: Beyond voice communication, the DM4600 facilitates data exchange, text messaging, and status updates, fostering efficient coordination and reducing the need for additional devices.
  5. Advanced Safety Features: Safety is paramount in various industries. The DM4600 incorporates features such as Lone Worker, Man Down, and Emergency Alarms, ensuring the well-being of users, especially in high-risk environments.

Benefits and Applications

  1. Public Safety and Emergency Services: The DM4600 plays a pivotal role in public safety and emergency response scenarios. Its robust design and advanced features empower first responders with reliable communication tools to coordinate and execute critical operations.
  2. Transportation and Logistics: In the transportation sector, the DM4600 enables efficient communication between drivers, dispatchers, and logistics teams. Real-time updates, location sharing, and text messaging streamline operations, leading to increased productivity.
  3. Manufacturing and Industrial: Manufacturing plants and industrial facilities benefit from the DM4600’s ability to maintain communication amidst machinery noise and large spaces. Enhanced safety features contribute to a secure work environment.
  4. Hospitality and Events: For event organizers and hospitality professionals, the DM4600 facilitates smooth coordination among staff members, ensuring seamless guest experiences and efficient event management.
  5. Security and Facilities Management: Security personnel and facilities managers rely on the DM4600 to monitor premises, respond swiftly to incidents, and maintain constant communication to ensure the safety of people and assets.


The Motorola DM4600 Two-Way Radio stands as a testament to the convergence of innovation and practicality in communication technology. Its blend of analog and digital capabilities, coupled with advanced safety features and data exchange abilities, positions it as a vital tool across various sectors. From ensuring public safety to optimizing logistics and enhancing guest experiences, the DM4600 empowers professionals with a reliable and efficient means of communication. As the world continues to evolve, the Motorola DM4600 remains a beacon of connectivity, offering a bridge to efficient collaboration in an interconnected landscape.

motorola slr8000 repeater

Motorola SLR 8000 Repeater

Title: Exploring the Powerhouse: Unveiling the Motorola SLR 8000 Repeater


In the realm of modern communication technology, efficiency, reliability, and reach are paramount. The Motorola SLR 8000 Repeater stands as a true testament to these principles, offering a robust solution for seamless communication across vast distances. Whether used in public safety, industrial, or commercial sectors, the SLR 8000 is a powerhouse repeater that ensures crystal-clear, uninterrupted voice and data transmission. In this article, we’ll delve into the features, benefits, and applications of the Motorola SLR 8000, shedding light on how it continues to revolutionise communication systems.

The Core of Communication

At its core, the Motorola SLR 8000 Repeater is a vital component of two-way radio systems. Its primary function is to extend the coverage range and enhance the quality of communication by receiving and retransmitting signals. This repeater employs cutting-edge technology to amplify signals and overcome obstacles that may hinder direct communication between radios.

Key Features

  1. Impressive Coverage Range: One of the standout features of the SLR 8000 is its ability to extend communication coverage. It ensures that communication signals remain strong and reliable, even in areas with challenging terrain or obstructive structures.
  2. Enhanced Audio Quality: Crystal-clear audio is essential for effective communication, especially in critical situations. The SLR 8000 employs noise reduction and audio enhancement technologies, ensuring that every word is heard loud and clear.
  3. Modular Design: The repeater’s modular design allows for flexibility and scalability. Additional modules can be added to enhance functionality, making it a versatile choice for various applications.
  4. Intelligent Operation: With built-in features like Automatic Gain Control (AGC) and Dynamic Regrouping, the SLR 8000 ensures optimal performance by adapting to changing environmental conditions and usage patterns.
  5. Integrated Data Capabilities: In today’s data-driven world, the SLR 8000 doesn’t just handle voice communication. It also supports data transmission, allowing for the exchange of messages, status updates, and even remote control functions.

Benefits and Applications

  1. Public Safety: In emergency response scenarios, reliable communication can be a matter of life and death. The SLR 8000 plays a crucial role in maintaining seamless communication between first responders, enabling swift coordination and action.
  2. Industrial and Commercial Sectors: From manufacturing plants to construction sites, the SLR 8000 ensures that communication remains uninterrupted, improving efficiency, safety, and productivity.
  3. Transportation: The transportation industry relies on effective communication for coordination and safety. The SLR 8000’s wide coverage range makes it an ideal choice for ensuring communication along vast stretches of highways, railways, and other transport routes.
  4. Events and Entertainment: Whether it’s a music festival, sports event, or any large gathering, the SLR 8000 can handle the influx of communication traffic, ensuring event organizers, security personnel, and staff stay connected.


The Motorola SLR 8000 Repeater stands as a testament to Motorola’s commitment to innovation and excellence in communication technology. Its powerful features, intelligent operation, and modular design make it a versatile solution for a wide range of applications. From public safety to industrial environments, the SLR 8000 ensures reliable and efficient communication, bridging gaps and enabling seamless coordination. As technology continues to evolve, the SLR 8000 remains a steadfast cornerstone in building robust communication networks that empower organisations to connect, collaborate, and thrive.

Connecting the World

Connecting the World

Connecting the world is a moral imperative, in our opinion.

Recent figures suggest that less than half the world has internet access.

Connectivity brings economic and cultural benefits.

Connectivity also empowers women and girls, who currently have less access to the internet.

Without the internet, they are kept at a disadvantage.

Disadvantage in terms of education and empowerment.

Disadvantage in terms of work opportunities.

The Traditional Problem

The traditional problem that faces telecommunications providers, is an economic one.

Installing the necessary telecommunications infrastructure, is not economic in less populated areas.

A typical cell tower, which provides the link between the mobile (cell) phone, and the network, only has a fairly short communications range.

That is why there has to be many towers, spaced fairly close together.

At the relatively high radio frequencies that are used (typically 900Mhz & 1800MHz, in UK), the range is short.

This isn’t a problem in the UK, and other areas of high population density, but is in sparsely populated areas of the world.

When a telecommunications provider installs equipment, there are a number of cost factors.

In the case of a mobile phone system, there is the cell tower, and associated infrastructure.

The Space Solution

Satellites can cover large geographic areas of the earths surface, from Space.

Traditionally however, there was a problem.

The problem is called ‘Latency

Latency is the delay in the signal reaching the receiver, after being transmitted.

Radio waves are travelling at 186,000 miles per second.

This sounds fast, but does mean signal delay.

For data communications over the Internet, this isn’t desirable.

Imagine trying to have a two-way live Zoom conversation, with delay in the data moving back and forth, between the participants.

The Latency issue, can be vastly improved, by having satellites in Low Earth Orbit (LEO).

This is because there is less distance for the radio waves to travel.

Solution, well Kind of

So why don’t we switch to using satellites for all of our Internet connectivity.

Capacity and Bandwidth!

LEO Satellites now provide worldwide coverage.

However they could not handle all the required data of the Internet.

That is why we need both terrestrial (earth based), and also Space based communications infrastructure.

Connecting the world, is an imperative, as recognised by International bodies, such as the ITU.

    Organising an Event Using Radio Communications

    Tips for Organising a Public event

    entel dx482 two way radio hire
    Superior IP68 Waterproof Entel Dx482 two way radio communications event hire

    Organising an event. A critical consideration when organising an event is how to effectively manage your staff. We have the solution from £10 per unit.

    Project management of an event involves several steps:

    Define the event’s goals and objectives: Clearly define what you want to achieve with the event and how you will measure success.

    Create a project plan: This should include a detailed timeline, tasks, and a list of resources (e.g. personnel, equipment) required to execute the event.

    Build a budget: Determine the cost of the event and secure funding.

    Assemble a team: Identify and assemble the team members who will help plan and execute the event.

    Coordinate logistics: Arrange for the venue, catering, equipment, and other logistics required for the event.

    Plan and design event elements: Design the overall look and feel of the event, including themes, decor, and lighting.

    Promotion and marketing: Develop a strategy for promoting the event and reach the target audience.

    Execution: Execute the event according to plan.

    Evaluation: Measure the success of the event against the goals and objectives defined in step 1, and gather feedback from attendees.

    Follow-up: Follow up with attendees, sponsors, and vendors after the event.

    It’s important to keep communication among the team clear and open, prioritize the critical path of the event and also having risk management plan in place before an event would minimize the chance of the unexpected event that might happen during the event.

    While using mobile phones & shouting may be adequate at the pre event setup stage, problems can occur during the event. We speed up communications with instant response solutions.

    Another problem is the noise levels that can be generated during the event, which we have a solution for. Earpieces allow the user to hear conversations better, as the speaker effectively sits in the ear, rather than on the radio.

    Live music events present a particular challenge, as it can be hard to hear a mobile phone ring.

    It is also hard to hear what is being said by the caller.

    A hand-held, or hand-portable , two-way radio can utilise accessories , such as noise canceling headsets.

    Another benefit of using two-way radio for management of events, is speed.

    In an emergency situation, such as an accident, two-way radio allows the emergency message to be sent straight away.

    By contrast, a mobile phone would require you to select the correct number, then dial and wait for an answer.

    In an emergency situation, time can make all the difference.

    Once you have decided to us radio communications at your event, you have further considerations.

    What some people do at this point is Google it, and then look for the cheapest price.

    Once a website has been selected to click on, the questions start.

    Are you sure whether a VHF or UHF system will work best?

    Entel radio dealer
    Entel IP68 Rated Digital Radio

    The answer is it could be one or the other, or both, or none!

    Let me explain,

    Generally a VHF system will give better communication range in Open Country.

    As most events are outside, you may decide this is what you want, and need.

    But wait! Will you also be operating inside metal framed buildings, or multi-storey buildings, or forested areas? If this is the case, then a UHF based system might be for you.?

    The best way is to have a company come out to you and properly assess and radio test the event site before the event.

    This way, any ‘black spots’ in coverage can be ‘engineered out’ by making the correct equipment choices. In collaboration with your radio communications engineer, problems can be eliminated before the event.

    Sometimes whether you choose VHF or UHF, neither provide acceptable radio coverage & range.

    This situation demands a radio engineering approach involving a device called a radio repeater.

    A radio repeater is a device that boosts the range of a radio signal.

    This is done by receiving & then re-transmitting the radio signal.

    The repeater is connected to a high (usually mast mounted) aerial or antenna, via a low loss coaxial cable.

    Having an antenna (aerial) mounted high on a mast helps with the radio communication range.

    This is because radio waves at VHF & UHF frequencies are normally ‘line of sight’.

    Therefore height helps with range.

    Some of the discount two-way radio hire companies will hire you a repeater, with a couple ‘clip on’ antenna.

    This in theory can work, as one antenna receives the signal, and the second antenna re-transmits the signal.

    However, the repeater can become ‘DE-sensitised’ if the transmit & receive antennas are not enough apart.

    From what I have seen on the discount radio hire websites selling this option, the antennas do not have enough length of coaxial cable to adequately space them apart.

    A DE-sensitised repeater will give poorer range.

    A cheap solution therefore will not give you maximum range.

    The ‘proper’ way of using a repeater is to use only one single antenna, a suitable erected mast, and a device called a ‘duplexer’.

    The duplexer allows one antenna to both receive and transmit at the same time.

    This clever device (duplexer) provides better range & performance than the two antenna ‘cheaper’ systems, as less likely to suffer from DE-sensitisation.

    You may also be given the option to choose between Digital, and Analogue systems.

    Feel free to ask about the difference.

    Finally, who needs to speak to who?

    For example car park attendants, first aid staff, or organisers / management.

    A range of sophisticated options and channels can be programmed into the radio equipment.

    There is a new two-way radio technology called POC.

    POC stands for ‘Push to Talk Over Cellular’, and combines the instant communication (no numbers to dial) of traditional two-way radio, with the wide area coverage of a mobile phone.

    POC uses the data service of the mobile phone network to transmit and receive voice communications.

    Whilst POC is great for many business cases, there are potentially some things to consider, when using for an event.

    The main issue with using POC for a large events such as concerts, is mobile phone system overload.

    As POC uses the same cellular data network, as all the audience, it can become overloaded.

    Imagine all those concert goers uploading photos and videos to social media at the same time, it can cause issues, if not considered.

    Again, feel free to ask for help.

    Our phone number is (01522) 740818, and we are based in Lincoln, but can travel to your event site.

    We always recommend a proper site survey as part of organising an event, to ensure maximum radio performance, and therefore event safety.

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