On a crisp spring day at Savoy Place in London, enthusiasts and professionals from the telecommunications industry gathered to hear Professor Nigel Linge from Salford University deliver a captivating presentation on the often-overlooked yet vital structures that form the backbone of our communication networks: telecom towers, masts, and poles.
Organised by volunteers from the IET London Friday Lunch Lecture committee, the event began with a warm welcome from the host, Roger Ward, who introduced Professor Linge as a distinguished figure in the field of telecommunications. "Nigel is an electronic engineer by profession," he noted, highlighting his extensive research interests, including 5G mobile location services, communication protocols, and network design. Professor Linge's passion for telecoms heritage was evident as we also discovered that he maintains an active outreach portfolio, writes academic papers, and is the co-author of two books 30 Years of Mobile Phones in the UK and The British Phone Box.
The Invisible Industry
Professor Linge opened his lecture by addressing the paradox of the telecommunications industry: its invisibility. "Telecoms doesn't like to be seen," he remarked. "We bury the cables under the ground... but towers and poles and masts, you can't really hide them." This observation set the stage for a journey through the history and significance of these structures, which, despite their visibility, often go unnoticed and unappreciated.
One of the most clearly visible parts of the telecommunications industry are the many towers, masts, and poles which adorn roadsides, roofs and hill tops. Indeed, there is a plethora of such structures ranging from the smallest mobile phone cell site to the ubiquitous telegraph pole and the iconic BT Tower. From the days of the Armada, telecommunications towers have been used to ensure messages can be sent over many miles. Today they play an essential role in the delivery to consumers of radio and television programmes, telephony, and broadband whilst also forming an important element of national telecommunication backbone networks. This lecture showcased the many types of telecommunications towers, masts, and poles that exist, with deep dives into their history and evolution, their function and why a wide variety of forms is required. It also highlighted some unusual and little-known aspects of this technology and in so doing, brought to life an essential aspect of telecommunications on which our daily lives are so dependent, but which often goes unnoticed or unappreciated.
Historical Perspectives
The lecture first delved into the historical roots of communication towers, starting with ancient fire beacons used by the Romans and the Armada beacons of 1588. Professor Linge showcased a preserved beacon site near Alderley Edge, illustrating the long-standing tradition of using prominent structures for communication.
Moving forward in time, he discussed Claude Chappe's semaphore towers in France, which revolutionised telecommunications by enabling the transmission of messages over long distances using visual signals. "It was claimed that messages from Paris to Calais, about 180 miles, could be conveyed in about five minutes," Linge explained, emphasising the speed and efficiency of this early system.
The lecture transitioned to the development of electrical telegraphy, a pivotal moment in the history of telecommunications. Professor Linge highlighted the contributions of Cook and Wheatstone, who demonstrated the first practical system of signalling electrically in 1837. This innovation paved the way for the widespread use of telegraph poles, which became a common sight along railway lines.
The advent of telephony, radio and television brought about significant changes in the construction of telecom towers, masts and poles. Professor Linge recounted Marconi's pioneering work in radio transmission, including the historic transatlantic signal sent from Poldhu to Newfoundland. He also touched on the establishment of radio broadcast stations and the iconic towers that supported them, such as the Droitwich transmitter and Alexandra Palace.
Modern Telecom Towers
The lecture then shifted to contemporary telecom towers, focusing on their role in cellular networks. Professor Linge described the various types of structures used today, from lattice towers to monopoles, and the technological advancements that have made them more efficient and less obtrusive. He noted the importance of these towers in maintaining connectivity and supporting the ever-growing demand for mobile communication.
One key point discussed was the challenge of maintaining and upgrading telecom infrastructure. Professor Linge highlighted the use of digital twinning and drones for inspecting and preserving these structures, ensuring their reliability and safety. He also addressed the aesthetic concerns associated with telecom towers, showing examples of disguised structures, such as flagpoles and artificial trees.
Looking ahead, Professor Linge speculated on the future of telecom towers in the context of emerging technologies. He touched on the future integration of terrestrial and non-terrestrial networks, suggesting that a combination of satellite and ground-based systems would be essential in future for comprehensive coverage. "It's not one or the other; it's how we use them collectively," he stated.
Conclusion
The event concluded with a lively Q&A session, where attendees shared their thoughts and experiences related to telecom towers. Professor Linge's enthusiasm and expertise left a lasting impression, inspiring many to look at these structures with newfound appreciation.
As we move forward in the digital age, it's crucial to recognise and celebrate the invisible giants that keep us connected. Telecom towers, masts, and poles may not always be in the spotlight, but their role in our daily lives is undeniable. Let's admire them, appreciate them, and ensure they continue to stand tall, supporting our communication networks for generations to come.
Watch the Event Recording
For those who couldn't attend the event or would like to revisit his insightful presentation, we have embedded the recording below. Watch the video to experience Professor Nigel Linge's full lecture and gain a deeper understanding of the fascinating world of telecom towers.
Join the conversation
Have you ever noticed telecom towers, masts, or poles in your area? What do you think about their visibility and design?
Do you believe that telecom towers should be more aesthetically integrated into their surroundings? Why or why not?
Share your thoughts in the comments below!
About the Friday Lunch Lectures
The Friday Lunch Lectures at Savoy Place in London are a series of engaging and informative talks held on the last Friday of each month. These lectures typically cover a wide range of topics related to engineering, technology, and innovation. They are designed to provide attendees with insights into the latest developments and trends in these fields.
These free to attend lectures usually take place over lunchtime, making it convenient for professionals to attend without disrupting their workday and are preceded by an optional lunch where there is an opportunity to network with colleagues. It's a great opportunity to network with peers, learn from experts, and stay updated on industry advancements.
Our next event is: From Horns to Hearables - 25 April
If you wish to have the optional lunch, you can pre-book it during the registration process. The cost for a two-course meal with wine is £25 (including VAT)
Make sure to book your place in advance, as spaces fill up quickly!
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