The Radio Amateur S Hand Book A Complete Authentic And Informative Work On Wireless Telegraphy And Telephony

The Radio Amateur's Handbook is a work by Archie Frederick Collins. The author presents a complete, authentic and informative theory on wireless telegraphy and telephony.

Reproduction of the original.

Before delving into the mysteries of receiving and sending messages without wires, a word as to the history of the art and its present day applications may be of service. While popular interest in the subject has gone forward by leaps and bounds within the last two or three years, it has been a matter of scientific experiment for more than a quarter of a century. The wireless telegraph was invented by William Marconi, at Bologna, Italy, in 1896, and in his first experiments he sent dot and dash signals to a distance of 200 or 300 feet. The wireless telephone was invented by the author of this book at Narberth, Penn., in 1899, and in his first experiments the human voice was transmitted to a distance of three blocks. The first vital experiments that led up to the invention of the wireless telegraph were made by Heinrich Hertz, of Germany, in 1888 when he showed that the spark of an induction coil set up electric oscillations in an open circuit, and that the energy of these waves was, in turn, sent out in the form of electric waves. He also showed how they could be received at a distance by means of a ring detector, which he called a resonator.

The Radio Amateur's Hand BookA Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony by A. Frederick (Archie Frederick) Collins is a rare manuscript, the original residing in some of the great libraries of the world. This book is a reproduction of that original, typed out and formatted to perfection, allowing new generations to enjoy the work. Publishers of the Valley's mission is to bring long out of print manuscripts back to life.

Before delving into the mysteries of receiving and sending messages without wires, a word as to the history of the art and its present day applications may be of service. While popular interest in the subject has gone forward leaps and bounds within the last two or three years, it has been a matter of scientific experiment for more than a quarter of a century. The wireless telegraph was invented William Marconi, at Bologna, Italy, in 1896, and in his first... (more)