kenwood two way radio

Why the correct choice of coaxial cable in a two way radio repeater system design, is important

Why the correct choice of coaxial cable in a repeater system design, is important.

Selecting the correct type of coaxial cable is crucial for ensuring optimal performance in two-way radio repeater installations.

The coaxial cable serves as the transmission medium for radio frequency (RF) signals between the radio equipment and the antennas.

The choice of coaxial cable impacts various aspects of repeater performance, including signal loss, impedance matching, durability, and cost-effectiveness.

Here’s why the correct type of coaxial cable is important:

Signal Loss: Coaxial cables exhibit signal attenuation, or loss, as the RF signal travels along the cable.

The magnitude of signal loss depends on factors such as cable length, frequency, and the characteristics of the cable itself.

High-quality coaxial cables with low loss characteristics help minimise signal attenuation, allowing the repeater system to maintain strong signal integrity over longer distances.

Impedance Matching: Coaxial cables have a characteristic impedance, typically 50 or 75 ohms, that must match the impedance of the radio equipment and antennas.

Mismatched impedance can lead to signal reflections and loss of signal power, resulting in degraded performance and potential damage to the equipment.

Using coaxial cable with the correct impedance ensures proper signal transfer and impedance matching throughout the repeater system.

Frequency Range: Different coaxial cables have varying frequency ranges over which they can effectively transmit RF signals.

It’s essential to choose a coaxial cable that supports the frequency range of the repeater system’s operation.

Using a cable with inadequate frequency handling capabilities can result in signal distortion, attenuation, and poor performance, particularly at higher frequencies.

Durability and Environmental Factors: Two-way radio repeater installations are often deployed in outdoor or harsh environments where coaxial cables are exposed to weather elements, temperature variations, and physical stress.

The selected coaxial cable should be rugged and weatherproof, capable of withstanding environmental factors without degradation in performance or reliability.

Additionally, cables with UV-resistant jackets and corrosion-resistant connectors are preferred for long-term outdoor deployments.

Cost-Effectiveness: While high-quality coaxial cables may come at a higher initial cost, they offer superior performance and reliability, leading to lower maintenance and replacement costs over time.

Investing in quality coaxial cable upfront can result in a more robust and efficient repeater system with reduced downtime and operational expenses in the long run.

In summary, choosing the correct type of coaxial cable is essential for achieving optimal performance in two-way radio repeater installations.

It directly influences signal loss, impedance matching, frequency handling, durability, and cost-effectiveness of the repeater system.

By selecting high-quality coaxial cable that meets the specific requirements of the installation, operators can ensure reliable and efficient communication for the radio network.


Improving Crew Welfare at Sea

Title: Improving Crew Welfare at Sea: The Benefits of LEO Satellite Connectivity

When it comes to life at sea, maintaining the welfare and happiness of the crew is paramount. For this reason, providing Low Earth Orbit (LEO) satellite connectivity to ships has become a game-changer. Let’s explore the advantages of this technology and how it’s transforming life onboard for seafarers.

1. Staying Connected with Loved Ones:

One of the most significant advantages of LEO satellite connectivity is the ability for crew members to stay connected with their families and friends back home. Being away from loved ones for extended periods can be tough, but with reliable internet access, seafarers can make video calls, send messages, and share their experiences, easing the feeling of isolation and homesickness.

2. Access to Entertainment:

Imagine spending weeks or months at sea with limited sources of entertainment. LEO satellite connectivity opens up a world of possibilities. Crew members can stream movies, play online games, and access a variety of digital content during their downtime, making life onboard more enjoyable and relaxing.

3. Enhancing Professional Development:

Continuous learning and professional development are crucial for seafarers. With LEO satellite connectivity, crew members can access online training programs, educational resources, and certification courses while at sea. This not only improves their skills but also enhances their career prospects.

4. Real-Time Communication and Safety:

In emergency situations, fast and reliable communication can be a matter of life and death. LEO satellite connectivity ensures that crew members can communicate with the ship’s management, authorities, and emergency services in real-time. This capability enhances safety at sea and provides peace of mind to both crew members and their families ashore.

5. Efficient Crew Management:

Ship operators benefit from LEO satellite connectivity as well. They can efficiently manage crew schedules, logistics, and payroll, leading to more streamlined operations. It also helps in reducing administrative overhead and ensures crew members are well taken care of.

6. Mental Health and Well-Being:

Life at sea can be challenging, and seafarers often face stressful situations. LEO satellite connectivity supports crew members’ mental health by enabling access to counseling services and mental health resources. It provides a lifeline for those who may need someone to talk to during difficult times.

7. Improving Crew Retention:

Providing LEO satellite connectivity is a significant factor in retaining experienced crew members. Happy and connected crews are more likely to stay with a company, reducing turnover rates and the costs associated with training new personnel.

In conclusion, LEO satellite connectivity has revolutionized life at sea, offering crew members a chance to stay connected, entertained, and informed while onboard. It not only enhances their welfare but also contributes to a safer and more efficient maritime industry. By investing in this technology, ship operators ensure that their crew members have the tools and resources they need to thrive both personally and professionally, making life at sea a better experience for everyone involved, improving crew welfare at sea.

    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

    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.

    lone worker protection radios

    Dear Business Owner

    Dear Business Owner,

    As a fellow business owner, I understand the challenges and complexities that come with running a successful enterprise.

    Whether you’re just starting out or have been in business for years, there’s always room for improvement and growth.

    That’s why I wanted to reach out to you today and offer my services to help you take your business to the next level.

    My name is Craig Miles, and I’m the owner of Yesway Communications, a radio communications consulting firm that specialises in helping businesses like yours thrive.

    We offer a range of wireless connectivity services that can help you streamline your operations, improve your bottom line, and achieve your long-term goals.

    I know that your time is valuable, which is why I’m not asking you to commit to anything right now.

    Instead, I would like to invite you to book a complimentary consultation with me so we can discuss your business in more detail and explore ways that I can help you grow and succeed.

    During our consultation, we’ll take a deep dive into your business to identify areas of opportunity and potential challenges.

    We’ll discuss your current strategies and initiatives, your goals and objectives, and your long-term vision for your business.

    From there, I’ll provide you with tailored recommendations and a roadmap for achieving your goals.

    I guarantee that our consultation will be a valuable investment of your time, and there is absolutely no obligation to engage our services after our meeting.

    However, I’m confident that you’ll find our insights and recommendations to be both actionable and valuable.

    Booking a consultation is easy.

    Simply reply to this email or give me a call at 01522 740818 to schedule a time that works for you.

    Dear Business Owner,

    I look forward to connecting with you soon and helping you take your business to new heights.

    Best regards,

    Craig Miles

    lincoln UK

    Lincoln Cathedral Two Way Radio

    Lincoln cathedral now uses Hytera two-way radio to coordinate services and visitors.

    Their existing otdated analogue based system was very old and needed replacement.

    Yesway Communications’ were approached to quote for a new system, and we were awarded the contract;

    A full radio range survey was carried out, including from the roof!

    Whilst we were up on the roof, we surveyed the existing wireless communications systems, that are up there.

    Being a high building on a high hill, the cathedral is naturally a popular place to mount an antenna on top.

    This popularity has resulted in a number of antennas being mounted on the central tower roof.

    Although modern digital two-way radio equipment such as the Hytera BD505 has excellent resistance to RF (Radio Frequency) intererence, we wanted to thoroughly analyse potential interference issues.

    Lincoln cathedral is over 1000 years old and built of thick stone.

    After extensive testing, we decided to move the system from VHF to UHF.

    VHF is great in open country, but there was a coverage blackspot, that changing to UHF solved.

    The original two-way radios used the older analogue technology, which is gradually being superseded by digital.

    There are two types of digital two-way radios, DMR and dPMR.

    DMR has emerged as the dominant standard in much the same way that VHS video recorders (remember them) became more popular than the Betamax standard.

    The equipment we recommended to Lincoln Cathedral was the Hytera BD505.

    Hytera BD505
    DMR Digital Technology

    The Hytera BD505 offers IP54 ingress protection, making it ideal for mainly indoor use, inside the Cathedral.

    The compact design and DMR digital technology gives the cathedral a radio that is easy to carry, and with excellent sound quality.

    Ongoing support and customer service is being provided, and we are so honoured and grateful to Lincoln Cathedral, for choosing us to serve them.

    photo of an entel dx handheld radio

    Tamworth Manufacturer – Two Way Radio case study

    A Tamworth manufacturing business approached Yesway, seeking to improve their factory two way radio communications system.

    Tamworth, which is in the west midlands county of Staffordshire has many manufacturing businesses.

    The clients factory already had an aging analogue license free PMR446 two way radio system, but there were coverage issues, due to the site being spread over a large area.

    Yesway travelled to the clients Tamworth site, and carried out a full equipment inspection of their existing equipment.

    A comprehensive radio coverage range survey was carried out, to identify the coverage blackspots.

    It was identified that parts of the furthermost goods yard from the main office, had no communication coverage at all.

    The clients manufacturing premises is spread across two separate sites, with a road between them.

    Another issue is that like many modern factories, the buildings are largely made of steel.

    Radio waves do not like penetrating steel, and causes what is known as attenuation.

    Attenuation is when the strength of the radio signal being transmitted or received, is reduced by physical objects.

    Physical objects can include man made objects such as buildings, or natural features of the landscape, such as trees and hills.

    As the buildings were largely metal structures (which radio waves don’t like), presented am exciting challenge for our Yesway engineering team.

    Of course being Yesway, our team was fired up to improve the customers radio system.

    The Yesway team initially tried a VHF Hytera PD405 radio, but it was established that VHF was not going to work best with the clients site.

    We then tried UHF, using our demo Entel DX series radios.

    UHF worked better than VHF at the location, but there were still a few blackspots in communication coverage.

    The conventional solution would have been to add a radio repeater.

    A radio repeater is a device that boosts signal range, by receiving and re-transmitting the radio signal.

    A radio repeater however would have doubled the cost to the customer.

    Yesway engineers decided to try something else first.

    We cut a helical antenna to the actual resonant frequency length. This optimised the performance of the handheld radio antenna.

    With this optimisation of the handheld radios antenna, full coverage was achieved, at half the cost of adding a repeater.

    The customer therefore saved money, and still gained full site coverage.

      ENTEL Lincolnshire

      ptt over cellular mast

      PTT over Cellular Two-Way Radio

      PTT over Cellular, or Push to Talk over cellular, as it is also referred to is a method of two-way radio communication.

      As the name suggests, PTT over Cellular uses cellular networks, rather than radio-to-radio, or radio-to-radio via a repeater, that traditional two-way radio systems use.

      For those reading who are not familiar with the term ‘cellular network’, let me explain. The cellular network is the existing communications infrastructure that makes your mobile work.

      You are probably familiar with seeing those metal towers by the side of the road with antennas on them, well many of them are the receiving and transmitting antennas for the mobile phone network.

      Those towers enable the radio signal to move to and from your mobile phone, allowing them to be mobile. A mobile phone is basically a different form of handheld two-way radio, operating on a higher frequency (typically around 900Mhz or 1800Mhz).

      PTT over Cellular combines the advantages of a mobile phone, with the call speed of a traditional two-way radio.

      With PTT over Cellular the user can communicate almost instantly, by pressing a button, rather than having to dial a number.

      This speed advantage can be critical in some situations, such as an emergency. This makes the system great for improving business safety and efficiency, though there are some caveats.

      A caveat, is that the mobile phone network, which is used by the system, can become overloaded in emergency situations.

      This is because lots of people may start to use their mobile phones, to record and send images and video, to social media accounts.

      Therefore this needs to be considered, for use in locations such as large public events, and areas with a lot of people, such as city spaces.

      In this situation, traditional two-way radio, may be a better option. We also provide this.

      The handsets used with PTT over Cellular networks, can either be shaped like the traditional handheld two-way radio, or just a special app installed on a mobile phone.

      A handset that we would recommend is the new Submersible Entel DN series.

      The Entel DN series radio is available in both SIM, and SIM free versions.

        Push to Talk over Cellular

        schools radio

        Light Industrial Business Process Improvment two-way radio

        Hytera PD405 UHF DMR Digital Radio

        Light Industrial Radio for light factory operations or Retail Environments.

        When choosing a hand-held two way radio for your factory, there are various factors to consider.

        If you operate a light manufacturing factory, such as a printing works, then the atmosphere will be fairly clean.

        For such situations, a radio such as the Hytera PD405 is ideal.

        Light Industrial Conventional digital two-way radio

        Robust and reliable, the Hytera PD405 handheld digital radio offers a simple communication solution, ideal for users operating in manufacturing, facilities management or education environments. Therefore an excellent business process improvement tool.

        VHF & UHF Models


        Digital DMR

        Clear Audio

        For more details visit our website:

        Legacy compatible

        Can communicate with existing older analogue radios

        long term charge

        The Hytera PD405 has long battery life

        Clear Audio

        DMR Digital technology ensures clear voice quality.

        If you are likely to be operating in more harsh factory environments, then we would recommend you let us advise you on the best options available.

        Typically for harsh environments such as wet conditions, you will want a radio with a high IP or Ingress Protection rating.

        One such radio, which we would recommend is the Entel DN400, which is an IP68 rated handheld radio.

        What this means is that the radio can be dropped into water and survive*

        * Up to 2M deep for 30 minutes.

        Another consideration, is are you likely to be operating in environments where there is a potentially explosive atmosphere.

        An example of such a location is the battery room of a ship, where potentially flammable gases are realeased while the ships batteries are being recharged.

        Environments where there is a potential risk of explosion, require intrinsically safe (ATEX) rated radios.

        Intrinsically safe radios have specially sealed cases and components, that prevent an electrical spark being created by the radio.

        For expert advice, contact us on 01522 740818