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Author : American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 0 pages File Size : 54,7 Mb Release : 2008-08 Category : Amateur radio stations ISBN : 0872591409
Author : American Radio Relay,American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 0 pages File Size : 50,9 Mb Release : 2010 Category : Technology & Engineering ISBN : 0872590968
The ARRL Handbook for Radio Communications by American Radio Relay,American Radio Relay League Pdf
This handbook contains practical projects, antennas, and useful references for hams, engineers and researchers. Subjects covered include mathematics for amateur radio, safety practices, mixers, modulators and demodulators, propagation, circuit construction, and more.
The Radio Amateur's Hand Book by A. Frederick Collins Pdf
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 : American Radio Relay League Publisher : Amer Radio Relay League Page : 1216 pages File Size : 54,6 Mb Release : 2002-10-01 Category : Electronic ISBN : 0872591948
Author : Dana G. Reed,American Radio Relay League Publisher : Amer Radio Relay League Page : 1216 pages File Size : 47,8 Mb Release : 2003 Category : Radio ISBN : 0872591972
Author : Radio Society of Great Britain Publisher : Unknown Page : 306 pages File Size : 47,5 Mb Release : 1976 Category : Amateur radio stations ISBN : 0900612282
Ham Radio's Technical Culture by Kristen Haring Pdf
A history of ham radio culture: how ham radio enthusiasts formed identity and community through their technical hobby, from the 1930s through the Cold War.
Author : American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 0 pages File Size : 40,6 Mb Release : 2009 Category : Amateur radio stations ISBN : 0872591441
The ARRL Handbook for Radio Communications 2010 by American Radio Relay League Pdf
This handbook contains practical projects, antennas, and useful references for hams, engineers and researchers. Subjects covered include mathematics for amateur radio, safety practices, mixers, modulators and demodulators, propagation, circuit construction, and more.