The Radio Amateurs Handbook
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Author | : A. Frederick Collins |
Publisher | : anboco |
Total Pages | : 316 |
Release | : 2016-08-13 |
Genre | : Fiction |
ISBN | : 3736407920 |
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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.
Author | : George Woodward |
Publisher | : |
Total Pages | : 662 |
Release | : 1982-12 |
Genre | : Technology & Engineering |
ISBN | : |
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Author | : |
Publisher | : |
Total Pages | : 1180 |
Release | : 2007 |
Genre | : Radio |
ISBN | : |
Download The ARRL Handbook for Radio Communications Book in PDF, Epub and Kindle
Author | : Michael Corey |
Publisher | : American Radio Relay League (ARRL) |
Total Pages | : 0 |
Release | : 2012 |
Genre | : Advertising, Public service |
ISBN | : 9780872594845 |
Download The Amateur Radio Public Service Handbook Book in PDF, Epub and Kindle
Amateur radio has consistently been the most reliable means of communications when other systems have failed. Hams work closely with disaster relief agency officials from FEMA, the American Red Cross, the Salvation Army, and other response organizations to offer wireless communications aid. From wildfires and earthquakes to marathons and road races, when getting the message through is critical, ham radio works. This book is for all hams who volunteer their time and skill to serve their communities. It provides knowledge needed for communicating quickly and effectively during disasters, emergencies, and community events, as well as an opportunity for learning more about the Amateur Radio Service and its unique role in supporting the public.
Author | : |
Publisher | : |
Total Pages | : 264 |
Release | : 1927 |
Genre | : Radio |
ISBN | : |
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Author | : American Radio Relay League |
Publisher | : American Radio Relay League (ARRL) |
Total Pages | : 0 |
Release | : 2004 |
Genre | : Radio |
ISBN | : 9780872599291 |
Download The ARRL Handbook for Radio Communications, 2005 Book in PDF, Epub and Kindle
... by far the most extensively revised version of this work in ten years. And, for the first time, this edition is bundled with The ARRL handbook CD (version 9.0)--the fully searchable and complete book on CD-ROM (including many color images).
Author | : Archie Frederick Collins |
Publisher | : |
Total Pages | : 476 |
Release | : 1924 |
Genre | : Radio |
ISBN | : |
Download The Radio Amateur's Hand Book Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 662 |
Release | : 1977 |
Genre | : Radio |
ISBN | : |
Download The Radio Amateur's Handbook Book in PDF, Epub and Kindle
Author | : Archie Frederick Collins |
Publisher | : HarperCollins Publishers |
Total Pages | : 402 |
Release | : 1983 |
Genre | : Technology & Engineering |
ISBN | : |
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Author | : Arrl |
Publisher | : |
Total Pages | : 0 |
Release | : |
Genre | : |
ISBN | : |
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