Radio Technology

Empire of the Air tells the story of three American visionaries - Lee de Forest, Edwin Howard Armstrong, and David Sarnoff - whose imagination and dreams turned a hobbyist's toy into radio, launching the modern communications age. Tom Lewis weaves the story of these men and their achievements into a richly detailed and moving narrative that spans the first half of the 20th century, a time when the American romance with science and technology was at its peak. 

Discover the brilliant life of Hedy Lamarr. This talented film actress became an influential scientist with her invention of a secret radio system in the early 1940s, a building block of today’s wireless communications. 

This audiobook tells the story of how Philo Farnsworth came up with the idea for electronic television at age 14, and later developed his idea into the technology for television that is still used today. 

Beyond Powerful Radio is a complete guide to becoming a powerful communicator for radio, Internet, TV, public speaking - anyone who wants to learn to communicate powerfully. It's a cookbook for communicators and broadcasters to improve. It's practical; it's easy. You'll find techniques to create content, produce and host a show, grow an audience, news gathering, coverage of investigative and breaking stories, and writing and delivering commercial copy.

Memorizing answers is hard—and boring. Learning is easy! If you've made the decision to open up your ham radio world by going for the Extra Class License, great! The latest edition of the Extra Class exam is challenging. The question bank includes 713 questions, some 28 percent of which are new since the last revision. 

The Fast Track to Your Extra Class Ham Radio License explains the reasoning and technology behind each correct answer on the exam so you'll understand and remember the subject matter.

Il nome di Guglielmo Marconi - in tutto il mondo - è innegabilmente legato a quello della radio, tecnologia di comunicazione di massa senza fili di cui lo si ritiene uno degli inventori. Marconi fu anche e principalmente un grande imprenditore che fondò importanti aziende di telecomunicazioni grazie alle quali poté sviluppare i suoi più famosi progetti di ingegneria. Visse svariati anni all'estero, soprattutto in Inghilterra, e viaggiò moltissimo tra vecchio e nuovo continente; svolse un ruolo importantissimo durante l'emergenza dei naufraghi della grande tragedia del Titanic.

Radio waves aren't just for listening to your favorite radio station! They are used to make GPS receivers and wireless internet work. Scientists use radio telescopes to help them study space. Listeners learn about radio waves and how we use them every day.

The all new Amateur Radio Beginners Guide has up-to-date information to get the most out of your ham radio. It is all you need to get started with ham or amateur radio. Ham radio is a fun hobby that allows you to talk to other ham radio operators locally and around the world. Depending on your license class, ham radio is used for a wide variety of activities. It is also useful in emergencies and search and rescue operations in disaster situations where all communication networks are down.   

From сhаttіng to аѕtrоnаutѕ оn a space ѕtаtіоn, to ѕаvіng mаnу lives, tо ѕіmрlу tаlkіng tо your frіеnd оn thе оthеr ѕіdе of thе planet, ham rаdіоѕ offer аn аbundаnсе of роѕѕіbіlіtіеѕ tо еvеrуоnе. Thеу аrе easy to ореrаtе, and you саn ѕіmрlу buіld уоur оwn radio tоwеr with оnlу a fеw pieces оf material nееdеd tо dо so.  

Contesting can be exciting, fun, and a great way to accelerate your learning process. This guide shall equip you with the requisite knowledge you need to participate in ham radio contests with skill and confidence. After learning the different types of contests, how they work and their rules, the software and hardware to use, you will start building up your QSO count and adding interesting DX contacts to your list of contacts. 

This basic ham guide gives you everything you need out of ham as a hobby - from basic hamming techniques to tips needed to get the best out of ham radio. The book takes you through all the tips you will need to pass your license exams and finally obtain your license. The “ham for emergency” aspect explains how hams can be used in a period of emergency. 

Enjoy the benefits of knowing the ins and outs of Kodi.

The Wireless World sets out a new research agenda for the history of international broadcasting, and for radio history more generally. It examines global and transnational histories of long-distance wireless broadcasting, combining perspectives from international history, media and cultural history, the history of technology, and sound studies. Bringing together their knowledge of a wide range of different countries, languages, and archives, the coauthors show how broadcasters and states deployed international broadcasting as a tool of international communication and persuasion.