Published in the early 20th century, this guide provides a comprehensive overview of the technology and techniques used in wireless communication during the early days of radio. Covering topics such as transmitting and receiving equipment, signal strength, and the practicalities of operating a radio club, this book is an invaluable resource for anyone interested in the history of wireless communication. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.