A thorough treatment of energy harvesting technologies, highlighting radio frequency (RF) and hybrid-multiple technology harvesting. The authors explain the principles of solar, thermal, kinetic, and electromagnetic energy harvesting, address design challenges, and describe applications. The volume features an introduction to switched mode power converters and energy storage and summarizes the challenges of different system implementations, from wireless transceivers to backscatter communication systems and ambient backscattering. This practical resource is essential for researchers and graduate students in the field of communications and sensor technology, in addition to practitioners working in these fields.

This book describes the origin, growth, and achievements of school broadcasting in Canada. Sections are devoted to the start of school broadcasting in each province, the establishment of national school broadcasts, and the work of the National Advisory Council on School Broadcasting. In the story, the part played by the Canadian Broadcasting Corporation in initiating and promoting the work of teaching by radio and in providing the facilities upon which it is based, is a significant one. The book is the first authoritative description, by the man largely responsible for its success, of an important and fruitful experiment in federal-provincial co-operation in the thorny field of education. To this co-operation is due the high standard of the school broadcasts which have earned for Canada world-wide recognition and appreciation. The book also describes the international aspects of this cooperation, particularly between Canada and Australia, Great Britain, and the United States.

Charlie Edwards spent many years in the broadcasting industry. Most of that time was in Christian radio. This booklet was first published in 1983 as the result of preachers asking questions about how they can start or improve their radio ministry. In 2013 this booklet was updated by the author with modern technology. It has once again been made available to preachers who are interested in getting the message of Christ out in their communities by radio. Charlie Edwards is certified with the Society of Broadcast Engineers as a Certified Broadcast Television, Radio, and Audio Engineer.

Information was collected in three different ways; a review of the literature, qualitative data from semi-structured interviews and quantitative questionnaires. A comprehensive review of current literature showed that usability is just as important as a technological approach for mobile phone design. It was also apparent from the literature that Nokia and Microsoft still value a user centred design approach as they continue to evolve their partnership. Qualitative data was gathered from semi-structured interviews with three design industry experts. Information from this part of the research yielded many important findings in particular the viewpoint that mobile phones will increasingly become a commodity that may hinder the design approach taken by the Nokia and Microsoft collaboration. Finally, 35 participants were also contacted to complete a questionnaire that targets consumers' attitudes towards aspects of their mobile phone. Results revealed that users still value their user interface style, however when they were asked if they would switch to a different phone, the data indicated that their decision to switch would be due to hardware performance rather than interface style.

How Spanish-language radio has influenced American and Latino discourse on key current affairs issues such as citizenship and immigration. Winner, Book of the Year presented by the American Association of Hispanics in Higher Education Honorable Mention for the 2015 Latino Studies Best Book presented by the Latin American Studies Association The last two decades have produced continued Latino population growth, and marked shifts in both communications and immigration policy. Since the 1990s, Spanish- language radio has dethroned English-language radio stations in major cities across the United States, taking over the number one spot in Los Angeles, Houston, Miami, and New York City. Investigating the cultural and political history of U.S. Spanish-language broadcasts throughout the twentieth century, Sounds of Belonging reveals how these changes have helped Spanish-language radio secure its dominance in the major U.S. radio markets. Bringing together theories on the immigration experience with sound and radio studies, Dolores Ines Casillas documents how Latinos form listening relationships with Spanish-language radio programming. Using a vast array of sources, from print culture and industry journals to sound archives of radio programming, she reflects on institutional growth, the evolution of programming genres, and reception by the radio industry and listeners to map the trajectory of Spanish-language radio, from its grassroots origins to the current corporate-sponsored business it has become. Casillas focuses on Latinos' use of Spanish-language radio to help navigate their immigrant experiences with U.S. institutions, for example in broadcasting discussions about immigration policies while providing anonymity for a legally vulnerable listenership. Sounds of Belonging proposes that debates of citizenship are not always formal personal appeals but a collective experience heard loudly through broadcast radio.

Have you ever dreamed of being on the radio? This book has everything you need to know to work in the exciting world of radio broadcasting. This book is designed to prepare entry level students for a career in radio. From how it all began to where its heading and how to get a job, this is the most comprehensive guide to current trends in broadcasting.

Have a Podcast? Thinking of Starting a Podcast? This Book created for both the startup podcaster as well as the well-Seasoned podcaster alike. Buy This Book and Receive a FREE One on One Laser focused conversation about your Podcast, Show or Station a $1500 Value. If you are advanced, not to worry we have made sure to have valuable and useful content here for you. In This book the focus is on syndication and Podcast monetization Strategies. The Author, Tom Cavallaro is a 26-year Multi-media Veteran, having worked for five of world's Top Media Companies. Created Digital Radio stations at CBS radio New York, developed many of the strategies used by Podcasters worldwide to make money with their Online Radio Show, Podcasts and Digital Radio Stations. The author shares with you in this book how in just one year of podcasting and streaming he generated nearly $1.7 Million Dollars in revenues.

This research aims to present accurate computer models of a communication link and a Super High Frequency (SHF) radio communication system. Network Warfare Simulation (NETWARS) is a J-6 initiative aimed at modeling all communication traffic in the Department of Defense (DoD) for testing and analysis of specific real world scenarios. The AN/TSC-94 is a SHF radio system with satellite communication capabilities. The AN/TSC-94 incorporates a Direct Sequence Spread Spectrum (DSSS) radio link for certain Anti-Jam (AJ) features. A DSSS 'spreads' signal power over a large bandwidth, reducing power previously concentrated within the original system bandwidth. The simulations were performed using OPNET. Simulation results show DSSS lowered Bit Error Rate (BER) over links not using spread spectrum. Results show that in the presence of multiple jamming forms, the DSSS link performed without bit errors while the normal (non-DSSS) link was disrupted by the jammer, experiencing BER's of up to 0.43. The AN/TSC-94 was able to defeat the jammer using the DSSS link. By performing in normal mode during unjammed scenarios, and switching to AJ mode in the presence of a hostile transmitter, the AN/TSC-94 demonstrated its ability to successfully communicate in multiple access and hostile environments.

More than 60 years had passed before I found them. Dozens and dozens of letters written to my family during WWII- from total strangers- to tell my great-grandmother that her son had been captured and was being held as a POW. How did they know this? Well, it seems the short-wave radio had held all the answers. POWs were allowed to state their names and hometowns on the radio, and sometimes relay a short message to their families. Scores of Americans, listening to the German propaganda from so far away, heard my grandfather's information, and took it upon themselves to write to my great-grandmother. All of these dear people wanted to give my great-grandmother a measure of comfort to know her son was alive. That was only the beginning of my journey.

This is a study guide for the FCC Element 3 exam for the General Radiotelephone Operator License (GROL). Each chapter contains an explanation of the material on that section of the exam and includes all of the possible test questions with the correct answers shown. Most persons taking the exam for the GROL will have some background in electronics, and some chapters will serve as a review of what you already know. But the GROL exam covers many different areas, some of which might be unfamiliar. This book will be especially helpful when you get to those areas. Basic electricity and electronics are covered. Therefore, it would be possible to pass the test simply by studying this book, even if you have no background in electronics.

Does that transmission line, which connects your antenna and transmitter, seem like a mystery to you? Or perhaps your have other questions: Just how much of the transmitter's rated output power actually gets to the antenna? How much power is consumed by the line itself? Just what is the input impedance of the antenna? Or, what is the input impedance at the transmitter end of a transmission line when the antenna is connected to its other end? Why does my tuner seem to work better on some bands than others? What is the effect of high transmission line SWR? Should I be concerned about high SWRs? What can I do about them? It is the unusual operator who has not at one time or another asked one or more of these questions. Well, now you can easily answer these questions and many others Using simple language the author of this book, a former electronic design engineer and amateur over more than 60 years, shows how to find the answers, quickly, easily and accurately. Those more technically inclined can work with the equations provided by the book; those who just want answers without all the math can use a personal computer and specially developed, easy-to-use programs from a CD and get accurate answers directly with the click of a button But there is more: the book contains many solved examples and each solution is followed by a thorough discussion. Now you can get answers while you learn about transmission lines.

The first book of its kind, the 1933 Official Audio-Radio Service Manual contains all the auto-radio service data available on July 5, 1933, the original publication date of this book. It is a complete director of all automobile radio receivers and presents full installation and trouble-shooting guides. A few manufacturers are not represented because they had no information ready for release at that date. Receivers made by companies including Acme Radio, Allied Radio, Arvin, Atwaterkent; and on through Galvin, A. H. Green, Grigsby-Grunow; and on through Philco, Transformer Corp of America; and concluding with Rudolph Wurlitzer and Zenith are just a sampling of the brands covered in this single comprehensive volume. The origina manual was assembled in loose-leaf form. Its pages were 3-hole punched and came bound in a fabric covered volume. We have brought back the original material for those who still own or collect these old receivers and have been looking for comprehensive service data.

This book is a follow up to the award winning first edition and is written as a comprehensive guide for those who need to obtain a working knowledge of radiowave propagation on satellitetoground links at frequencies above 1 GHz, and as a reference book for experts in the field. To accomplish this, expanded sections of explanatory text, copiously illustrated, enable an undergraduate or nonspecialist to grasp the fundamentals involved. An extensive reference list permits the expert to go to the source material should the level of inquiry go beyond the level of this book. The book is broken down into chapters that deal with the major propagation phenomena classes. After a broad introductory chapter, there are extensively updated chapters on ionospheric effects, clear air effects, attenuation effects, and depolarization effects. New chapters on mobile communications effects and optical communications effects are followed by a chapter on restoration of performance during impairments. This is an ideal reference for all levels of inquiry into satellitetoground radiowave propagation at frequencies above 1 GHz. Review questions are included in all chapters so that the book can act as a textbook for university study. A reference book and comprehensive guide for those working in satellite to ground radiowave propagation at frequencies below 1GHz. Can also be used as a textbook for University study.

Propagation of Radiowaves introduces the basic concepts and mechanisms of radiowave propagation engineering in both the troposphere and ionosphere, an understanding of which is fundamental to the effective use of the radio spectrum for radiocommunication. Reflecting the wide experience of the exceptional group of authors, the contents provide a firm background to established theory and introduce the most appropriate models, methods and procedures which are of use to spectrum planners, system designers and operators in assessing the estimated performance of radio systems. The field of radio communications continues to change rapidly and the third edition of this outstanding and successful book has been fully updated to reflect the latest developments. The relevant Recommendations of ITU-R Study Group 3 are discussed and put into context. Propagation of Radiowaves, 3rd Edition is essential reading for professionals involved in the planning, design and operation of radio systems, as well as academics and postgraduate students in the field.