Smooth Sailing with OneWeb: Advantages for Superyachts Superyachts offer luxurious adventures on the high seas, and OneWeb satellite connectivity is making these voyages even more incredible. In this article, we’ll explore how OneWeb is transforming the superyacht sector, ensuring that your experience is nothing short of extraordinary. 1. Staying Connected, Everywhere Superyacht journeys often take …
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 …
Satellites orbit around celestial bodies, such as planets or stars, under the influence of gravity. The specific characteristics of a satellite’s orbit depend on various factors, including its altitude, velocity, and the mass of the celestial body it is orbiting. Here are some key concepts related to satellite orbits: In summary, satellite orbits are determined …
We offer a course entitled: Understanding Satellite Communication Systems Course . One of the modules is entitled Overview of satellite systems and services In this overview of satellite systems and services module we cover the following topics: Satcom Systems and Their Evolution:
As a super yacht owner, you know that reliable radio communications are essential to ensure your safety and enjoyment on the open seas. Whether you’re cruising the Mediterranean, exploring the Caribbean, or crossing the Atlantic, you need to be able to communicate with your crew, and other vessels in case of emergency, or for day-to-day …
Superyacht Radio Installation. As a high net worth individual, you know that owning a superyacht is more than just a luxury purchase. It’s a reflection of your success and a symbol of your freedom to explore the world’s oceans. But with this freedom comes responsibility, and one of the most important aspects of ensuring your …
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 …
Entel’s DTEx Commercial Marine Series is a range of marine radios specifically designed for commercial use. They offer crystal-clear audio quality, long-range communication capabilities, and durable design. They are “intrinsically safe”, which means that they are designed to not produce sparks that could ignite flammable gases or dust in hazardous environments, making them suitable for …
Optical Satellite communications refers to the use of laser technology to transmit data through the atmosphere using satellites. This technology is used to transmit large amounts of data, such as video and internet communications, over long distances. The main advantage of using optical communications is the high data rate that can be achieved, which is …
ATEX stands for “ATmospheres EXplosibles.” It is a set of European Union regulations that govern the design and use of equipment and protective systems intended for use in potentially explosive atmospheres. The regulations cover equipment and protective systems that may be used in areas where there is a risk of a explosion due to flammable …
FMECA: Understanding the Fundamental Tool for Risk Analysis in Communications Engineering Failure Modes, Effects and Criticality Analysis (FMECA) is a powerful tool for identifying and assessing the potential failure modes of a system or product, and determining the risks associated with each failure mode. FMECA is used in a wide range of industries, including aerospace, …
Factory Radio Walkie Talkie For industrial operations within a factory, we recommend the Hytera PD405 factory radio, for improving communications efficiency. It is an excellent upgrade for business process improvement. The factory radio has proved reliable with our industrial customers, and in fact we have never had one returned under warranty, due to failure. The …
A Tamworth manufacturing business approached Yesway, seeking to improve their factory communications system.
A critical consideration when organising an event is how to effectively manage your staff.
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 …
The importance of fuses in radio equipment power supplies A safe two-way radio equipment installation requires the ability to quickly disconnect the supply to the equipment if a fault develops. Fuses in radio equipment are a cost-effective solution, for equipment safety. What are Electrical Fuses Fuses are devices that protect equipment installations, from excess electrical …
What is Lorawan First of all, what is Lorawan. It is a wireless technology that allows small amounts of data to be sent between a remote sensor (such as a river level detector), and the Internet. Lorawan technology is very efficient at sending the sensor data over long distances, whilst consuming very little power. This …
Radio communications systems started to appear in the late 19th Century, with pioneers like Marconi sending signals across the Atlantic by morse code.
Soon such systems were being rapidly adopted by both government and industry, as an alternative to the existing ‘Wired’ telegraph systems.
Radio offered advantages over the Telegraph system, due to cheaper infrastructure costs. This is because the telegraph system required the purchase and installation of telegraph wires & poles.
Radio communications, on the other hand, did not require expensive long distance wires, and the installation of many telegraph poles.
Radio proved to be particularly cost-effective compared to the telegraph, for international communications, which required undersea cable installation.
There were some disadvantages of early radio communications systems, however.
One such disadvantage was call privacy, as early radio systems did not use the modern encryption methods available on radio systems today.
This meant that confidential messages could be easily eavesdropped, by ‘Third Parties’.
This was an issue for both government and business users, but modern systems have overcome this.
A famous early example of radio communications use was the ‘Titanic’ ship disaster of April 1912. The Titanic is a state of the art ship that had been equipped with a two-way radio system, which used Morse Code for communicating messages.
As the ship was sinking, radio messages were able to be sent out for help, and it was the first time that the new emergency code ‘SOS’ was used.
Although there was a massive loss of life, many lives were undoubtedly saved due to being able to get the message out to rescue ships in the area that they were sinking.
Without radio communications, the first indication of the disaster would have been, when the ship failed to arrive in New York as scheduled.
In 1922 the BBC was formed in the UK, and for the first time, the ordinary (nongeek) public was able to experience radio. Although public broadcasting is only one way of communication, it is worth mentioning as a milestone in the history of radio communications.
World War Two necessitated innovative approaches to communications, and the American company Motorola was the first to develop a handheld portable ‘Walkie Talkie’.
As the Transistor and solid-state electronics were not invented till the 1950s, the wartime Walkie Talkie used ‘Thermionic Valves’ (Tubes in the USA). This meant that they were not particularly efficient, and quite large in size.
The Motorola-designed Walkie Talkie was however an important step forward in radio communications development.
Private commercial use of Two Way Radio by businesses in the UK started just after the war in the late 1940s. This allowed businesses to instantly communicate with their drivers out on the road and was very useful for Taxi firms.
Early equipment was not particularly efficient compared with the latest Digital & Analogue radios available now. Reasons for this include, inefficient use of frequency bands (wide bandwidth), and less efficient electronics available to the designers of the equipment.
In equipment prior roughly to the 1980s, the frequency that the radio was required to operate on (set by what is now OFCOM), was controlled by a ‘Crystal Oscillator’.
These had to be custom made for a particular frequency and then installed into the Two-Way Radio. Once installed, they needed to be set up using a Radio Communications Test Set.
Modern equipment does not require crystals to be purchased and installed but does instead require the radio to be connected to a computer system and programmed to the required frequency and options.
Modern Two Way radio systems are sometimes also integrated into the internet, and it is possible to communicate using a handheld Walkie Talkie, from a field in the UK to a factory in Australia.
To do this the signal is received from the handheld radio by a Digital Repeater Base station located near and within range of the handheld radio. The voice signal is then fed onto the internet by the Repeater.
At the Australian end is another internet-connected Repeater, which then transmits the voice signal out to the nearby Australian factory worker’s handheld Walkie Talkie.
When the Australian worker talks back, the process works in reverse.
For more information on the history of two-way radio, check out other articles on our site.
Author: Craig Miles BSc( Hon’s), PGCE
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For Agriculture Farmers are increasingly choosing to use two-way radio for farms, instead of mobile phones for a number of reasons: 1) Higher reliability than mobile phones in sparse rural areas due to poor phone coverage. 2) More rugged design of two-way radio handsets. Models from Hytera & Tait for example can survive being dropped …
Installing a radio repeater has two advantages. The first advantage is an increase in communications range. The second advantage is that it overcomes signal dead spots. What I mean by dead spots, are areas of the desired coverage area, that radio signals cant reach. Reasons for dead spots Dead spots are caused by the received …
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Superyacht ATEX equipment, is designed to prevent explosions. Superyachts and other Marine vessels, are at potential risk of explosion. Explosions are caused by electrical sparks being produced by equipment, being used in areas with potentially explosive atmospheres. An example of a potentially explosive environment, is a ships battery room. In a battery room, potentially explosive …
How satellite Communications work. Satellite communication systems work through a series of steps involving the transmission of signals between ground-based stations and satellites in orbit. Here’s a simplified explanation: The entire process enables communication over long distances, providing a global reach without the need for a physical infrastructure connecting the communicating parties. It’s important to …
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Satellite communications involve a complex architecture that allows for the transmission of data, voice, and video signals between ground-based stations and satellites in orbit. Here’s a simplified breakdown: Satellite Communications architecture allows for global communication coverage, making it possible for users to communicate over long distances without the need for a physical connection between them.
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What is WIFI Wi-Fi, short for Wireless Fidelity, is a technology that enables wireless local area networking (WLAN) based on the IEEE 802.11 family of standards. Wi-Fi allows devices such as computers, smartphones, tablets, and other wireless-enabled devices to connect to the internet and communicate with one another within a local network without the need …
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Code Division Multiple Access (CDMA) is a digital cellular technology that allows multiple users to share the same frequency band simultaneously. Unlike Time Division Multiple Access (TDMA) or Frequency Division Multiple Access (FDMA), which divide the frequency band into time slots or channels, CDMA uses a spread spectrum technique. In CDMA, each user is assigned …
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