Tag: Radio

Free Download Amplifiers in Radio Receivers: Characteristics, Operating Principles, and Efficiency (Aerospace Technology) by Sergey Viktorovich Dvornikov, Alexander Fedotovich Kryachko, Igor Anatolyevich Velmisov
English | November 3, 2022 | ISBN: 9811962146 | 262 pages | MOBI | 29 Mb
This book presents the basics of building various types of amplifiers, the most widely used in the composition of modern specialized radio receivers, as well as the principles of building digital radio receivers. The rapid development of modern telecommunications systems, aviation equipment, and space systems for various functional purposes, as well as new information technologies, is inextricably linked with the theory of building radio receivers. Radio receivers are an integral part of the radio line, which largely determine the quality of its operation, both in normal operating conditions and in a complex interference environment. Since the creation of the first lightning detector in 1895, the technique of radio receiving devices went a long way to the development of modern automated digital systems.

Free Download NC Scout, "The Guerrilla’s Guide To The Baofeng Radio"
English | ASIN : B0BNV21F4P | 2022 | 156 pages | PDF | 27 MB
The Guerrilla’s Guide To The Baofeng Radio is a handbook for those finding themselves in an austere environment, an underground resistance, or going into harm’s way with one of the most common pieces of communications equipment in the world. Going far beyond simple programming or what’s written from the Amateur Radio perspective, this manual goes in-depth on how to communicate, creating a communications plan, improvised wire antennas, digital operations and encryption in an easy to follow, step-by-step format based on combat proven methods. Whether you’ve just invested in a few of the inexpensive radios for an uncertain future or find yourself in rough corners of the world, this manual covers how to create communications where there otherwise would be none.

Free Download ARRL, "The ARRL Handbook for Radio Communications"
English | ISBN: 1625951507 | 2021 | 1280 pages | PDF | 131 MB
The ARRL Handbook for Radio Communications is your complete guide to radio experimentation, discovery, and innovation. It is the Handbook, written by radio amateurs for everyone with a desire to advance the pursuit of wireless technology.

Free Download David Abrutat, "Radio War: The Secret Espionage War of the Radio Security Service 1938-1946"
English | ISBN: 1781557594 | 2020 | 224 pages | EPUB | 3 MB
During the Second World War German intelligence had deployed wireless teams throughout occupied Europe. Agents had even been deployed to mainland Britain to spy on British military activity. Monitoring and reporting of their wireless transmissions fell to a small, secretive and largely unknown unit manned almost exclusively by volunteers. The Voluntary Interceptors (VI) as they became known would spend hours every day at home monitoring the short wavelengths for often faint and difficult to copy signals transmitted by these German secret intelligence services. This unit was to become known as the Radio Security Service (RSS) and was at the core of the signals intelligence production effort at Bletchley and the insights into German military tactical and strategic planning. Without interceptors like the RSS, Bletchley would not have existed. Their story has never truly been written and

Free Download Wave Dynamics and Radio Probing of the Ocean Surface by O. M. Phillips, Klaus Hasselmann
English | PDF | 1986 | 677 Pages | ISBN : 1468489828 | 72.4 MB
In 1960, Dr. George Deacon ofthe National Institute ofOceanography in England organized a meeting in Easton, Maryland that summarized the state of our understanding at that time of ocean wave statistics and dynamics. It was a pivotal occasion: spectral techniques for wave measurement were beginning to be used, wave-wave interactions hadjust been discovered, and simple models for the growth of waves by wind were being developed. The meeting laid the foundation for much work that was to follow, but one could hardly have imagined the extent to which new techniques of measurement, particularly by remote sensing, new methods of calculation and computation, and new theoretical and laboratory results would, in the following twenty years, build on this base. When Gaspar Valenzuela of the V. S. Naval Research Laboratory perceived that the time was right for a second such meeting, it was natural that Sir George Deacon would be invited to serve as honorary chairman for the meeting, and the entire waves community was delighted at his acceptance. The present volume contains reviewed and edited papers given at this second meeting, held this time in Miami, Florida, May 13-20, 1981, with the generous support of the Office of Naval Research, the National Aeronautics and Space Administration, and the National Oceanic and Atmospheric Administration.

Free Download Guy Trangoš, "The Spatialities of Radio Astronomy "
English | ISBN: 1032357460 | 2023 | 246 pages | EPUB | 10 MB
The Spatialities of Radio Astronomy examines the multidisciplinary overlap between the spatial disciplines and the studies of science and technology through a comparative study of four of the world’s most important radio telescopes. Employing detailed analysis, historical research, interviews, personal observations, and various conceptual manoeuvres, Guy Trangoš reveals the depth of spatial process active at these scientific sites and the territories they traverse.

Free Download Radio Wave Propagation for Telecommunication Applications by Hervé Sizun
English | PDF (True) | 2005 | 423 Pages | ISBN : 3540407588 | 4.9 MB
This book describes the physical mechanisms involved in the propagation of electromagnetic waves in the radiofrequency range, inside and outside buildings, in the terrestrial and near space environments, with a special focus on mobile radio communication. It combines a theoretical and an experimental approaches with an understanding of the physical environment through adequate formulations of the laws of electromagnetism. It should thus provide the background needed by advanced students and development engineers for the conception of high quality and reliable telecommunication systems.

Free Download David Crider, "Performing Personality: On-Air Radio Identities in a Changing Media Landscape"
English | ISBN: 1498530850 | 2016 | 204 pages | EPUB | 3 MB
This book examines how radio announcers construct, prepare, and perform their on-air personalities during a time when the radio industry is fighting to stay relevant amid expanding media options. Crider conducted interviews with key on-air personnel at eleven broadcast stations in order to analyze how each individual created a narrative on-air personality, conducted conversations outside of their performance, were affected by the setting and situation, embraced the role of the listening audience, and reduced the social distance between them and listener. Crider argues that the successful deployment of on-air identity across multiple channels (in-person, online, and through social media as well as broadcast) provides assurance that a space for radio will remain despite the expanding number of media options.

Free Download Pathological Effects of Radio Waves by Mariya Sergeevna Tolgskaya , Zinaida Vasil’evna Gordon
English | PDF | 1973 | 144 Pages | ISBN : 1468484214 | 17.4 MB
A large region of the electromagnetic wave spectrum is oc- cupied by electromagnetic waves (or fields) in the radiofrequency band: high frequency (HF), very high frequency (VHF), and super- high frequency or microwave radiation.

Free Download Introduction to Solar Radio Astronomy and Radio Physics by A. Krüger
English | PDF | 1979 | 345 Pages | ISBN : 9027709572 | 13.1 MB
1. 1. Short History of Solar Radio Astronomy Since its birth in the forties of our century, solar radio astronomy has grown into an extensive scientific branch comprising a number of quite different topics covering technical sciences, astrophysics, plasma physics, solar-terrestrial physics, and other disciplines. Historically, the story of radio astronomy goes back to the times of James Clerk Maxwell, whose well known phenomenological electromagnetic field equations have become the basis of present-time radio physics. As a direct consequence of these equations, Maxwell was able to prognosticate the existence of radio waves which fifteen years later were experimentally detected by the famous work of Heinrich Hertz (1887/88). However, all attempts to detect radio waves from cosmic objects failed until 1932, which was mainly due to the early stage of development of receiving techniques and the as yet missing knowledge of the existence of a screening ionosphere (which was detected in 1925). Therefore, famous inventors like Thomas Edison and A. E. Kennelly, as well as Sir Oliver Lodge, were unsuccessful in receiving any radio emission from the Sun or other extraterrestrial sources. Another hindering point was that nobody could a priori expect that solar radio emission should have something to do with solar activity so that unfortunately by chance some experiments were carried out just at periods of low solar activity. This was also why Karl Guthe Jansky at the birth of radio astronomy detected galactic radio waves but no emission from the Sun.