Designing Rf Combining Systems For Shared Radio Sites
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Designing RF Combining Systems for Shared Radio Sites
This book explores Radio Access Networks (RANs) within LMR systems, comprising base stations, mobile radios, and hand portable radios. These components facilitate communication among end users via a network of fixed base stations, antennas, and combining systems strategically placed across radio repeater sites throughout the coverage area. This resource also delves into the consequences of interference, highlighting the painstaking efforts required to diagnose and rectify interference issues through field testing and redesign. The central focus being on the design intricacies of base station antennas and combining systems at densely populated shared radio repeater sites. The book underscores how to identify potential sources of interference from co-located transmitters and receivers, effectively surveying sites to anticipate high-level interfering signals. This critical information forms the foundation for crafting base station antenna and combining systems that curtail interference, subsequently optimizing coverage and minimizing costs. Throughout its pages, the book lays out a detailed roadmap for designing LMR systems resilient to interference. By outlining essential principles and methodologies, the book guides practitioners in creating LMR networks that flawlessly align with end users' communication requirements. The resulting systems not only meet expectations but surpass them, offering the coverage area and communication quality demanded by public safety and utility organizations during critical operations. Ultimately, the book serves as an indispensable resource for engineers, designers, and professionals engaged in crafting LMR systems capable of delivering impeccable performance and reliability.
Signal Failure: The Rise and Fall of the Telecoms Industry
Signal Failure: How the Telecoms Industry Lost its Way explores the history of the telecoms industry concentrating on the key period from 1950-2000, enabling practicing telecoms engineers to learn from the experiences and mistakes of the industry's history. The book arises from wider research into the history of the United Kingdom electronics industry. The lessons highlighted are very relevant now for any country that aims to grow by supporting technological industries. The book has relevance well beyond telecoms and in particular show the long timescales affecting technological trends and how these can sometimes conflict with the relatively short horizon of political decisions. The book is intended for anyone who is interested in how innovation affects the realities of technology entering the marketplace as well as the technology’s economic performance. Telecom professionals will find it gives background to the changes that happened in the UK industry. However, the book is also aimed at people who are interested in trends in the world-wide telecoms and other technology industries. Anyone involved with technological development will find the book relevant as it gives an insight into the issues that occur as significant disruptive technology enters a market.
National Association of Broadcasters Engineering Handbook
Author: Garrison C. Cavell
language: en
Publisher: Taylor & Francis
Release Date: 2017-07-28
The NAB Engineering Handbook is the definitive resource for broadcast engineers. It provides in-depth information about each aspect of the broadcast chain from audio and video contribution through an entire broadcast facility all the way to the antenna. New topics include Ultra High Definition Television, Internet Radio Interfacing and Streaming, ATSC 3.0, Digital Audio Compression Techniques, Digital Television Audio Loudness Management, and Video Format and Standards Conversion. Important updates have been made to incumbent topics such as AM, Shortwave, FM and Television Transmitting Systems, Studio Lighting, Cameras, and Principles of Acoustics. The big-picture, comprehensive nature of the NAB Engineering Handbook will appeal to all broadcast engineers—everyone from broadcast chief engineers, who need expanded knowledge of all the specialized areas they encounter in the field, to technologists in specialized fields like IT and RF who are interested in learning about unfamiliar topics. Chapters are written to be accessible and easy to understand by all levels of engineers and technicians. A wide range of related topics that engineers and technical managers need to understand are covered, including broadcast documentation, FCC practices, technical standards, security, safety, disaster planning, facility planning, project management, and engineering management.