Equipment Consulting

Navigating the Complexities of Telecommunication Equipment Losses

20 August 2024

Broadcast TV, AM and FM radio, cellular networks, and emergency services radio communication systems have been a part of our landscape for decades, their evolution a testament to our technological progress. Yet, this progress has not rendered them impervious to malfunctions and failures. In the sphere of telecommunications equipment insurance claims, challenges ranging from lightning damage to power surges and equipment failure causes are as diverse as the equipment itself.

Understanding Broadcast Systems: History, Setup, and Spectrum Positioning

Understanding the history and technological evolution of systems such as TV and radio is vital when troubleshooting potential problems. For example, the experimental beginnings or birth of TV in the 1920s have evolved through significant technological developments which gave rise to color broadcasting, cable, and high-definition. AM and FM radio also had their unique developmental timelines and technological progressions. Knowledge of these timelines aids in pinpointing potential issues and their corresponding solutions.

A standard installation for AM, FM, and TV broadcast encompasses elements like an equipment shack, a tower equipped with lighting, de-icing equipment, guiding wires, antennas, utilities, and often a backup generator. In contrast, the setup for two-way radios and cellular networks can be considerably more intricate, requiring a network of interconnected installations.

A key understanding of the electromagnetic spectrum, governed by the Federal Communications Commission, is essential. Broadcast and transmission systems in this discussion occupy a minor segment of this spectrum. Identifying where these systems are positioned on the spectrum aids in troubleshooting and understanding potential interference or issues.

Understanding System Challenges and Key Players in Issue Resolution

Despite the utilization of advanced technology and optimal setups, these systems can still be prone to issues and failures. Weather or environmental factors, such as lightning strikes, power disruptions, and heat, dust, humidity, wind, hail, ice, and tornadoes can all disrupt networks. Aging components, lack of maintenance, overheated equipment, moisture, and rodent damage also pose potential issues.

In the event of an issue or failure, it becomes crucial to identify the parties involved: the property owner, the tower and equipment room owner, utilities, tenants and operators, regulators, and inspection and maintenance crews all need to have a clear understanding of the roles and responsibilities of each party aids in troubleshooting and effectively resolving the issue.

Analyzing Broadcast Case Studies: Damage Causes and Solutions

Case Study 1: Lightning Damage to Transmission Line

The claimant, a broadcaster, reported an elevated Voltage Standing Wave Ratio (VSWR), suggesting probable lightning damage to their transmission line or antenna. Envista's investigation revealed that the damage originated not from lightning, but from arcing due to poorly maintained sections of the line. The conclusion drawn was that subpar maintenance over time had resulted in the degradation of the transmission line and overall reduction in range of the FM radio broadcast. After replacing the transmission line, the system resumed normal operations.

Case Study 2: Weather-Related Limited Broadcast Range

The claimant noted that their broadcast quality and range were weather-dependent. Envista's investigation discovered that the antenna had been detuned following the removal of protective radomes. The issue was resolved by electronically retuning the antenna, restoring the broadcaster's range and market.

Case Study 3: Broadcast Installation Blackout

The claimant indicated that their transmitter was off-air for approximately three days due to an electrical power surge. Envista's investigation found that previously damaged power protection equipment failed to shield the transmitter from subsequent power surges. A custom repair contractor expediently fixed the damaged components, and the station was back on the air within nine days.

Case Study 4: Water Damage to Electronics

The claimant stated that all site equipment was damaged, with concerns about potential water damage to the electronics. Envista's investigation determined that most of the equipment was hermetically sealed, thus safeguarding it from water damage. The suggestion was to send the undamaged equipment back to the manufacturer for recommissioning.

Grasping the complexities of broadcast and transmission systems are necessary for successful investigation of a broadcast transmission installation failure. A comprehensive understanding of the technology, potential pitfalls, and the stakeholders allows for efficient troubleshooting and problem resolution, ensuring these vital communication systems operate seamlessly. Managing insurance claims related to telecommunications equipment necessitates an in-depth knowledge of the equipment and potential damage causes. Each claim also poses distinctive challenges, and the optimal solution often demands a detailed investigation and a sharp understanding of the equipment and the claim's contextual circumstances.

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About The Author
Bruce Kivisto
Bruce Kivisto, PE
Senior Project Engineer
Electrical

Mr. Bruce Kivisto is a registered professional engineer with more than 30 years of successful international design and application experience in the defense, energy, transportation, offshore, manufacturing, and agriculture industries. His experience in the manufacturing and transportation industries includes successful designs of ultra-high-pressure pumps, CNC machines, motion systems, diesel-powered electrical systems, and embedded control systems.

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