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Author : American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 0 pages File Size : 47,5 Mb Release : 2001 Category : Radio ISBN : 0872591891
Author : American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 1180 pages File Size : 44,5 Mb Release : 2002 Category : Technology & Engineering ISBN : 0872591921
Author : Mark J. Wilson Publisher : American Radio Relay League Page : 356 pages File Size : 44,7 Mb Release : 2007 Category : Reference ISBN : 9780872591097
The ARRL Operating Manual for Radio Amateurs by Mark J. Wilson Pdf
If you're an active ham radio operator, you probably have a story about your first radio contact. Many hams remember that experience even more than their first license examination.
Author : American Radio Relay League,Chuck Hutchinson Publisher : American Radio Relay League (ARRL) Page : 1248 pages File Size : 46,7 Mb Release : 2000 Category : Radio ISBN : UCSD:31822029994837
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,American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 0 pages File Size : 44,8 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 ARRL Handbook for Radio Communications 2023 by H. Ward Silver Pdf
A guide to radio experimentation, discovery, and innovation. It is a handbook written by radio amateurs for everyone with a desire to advance the pursuit of wireless technology.
Author : American Radio Relay League Publisher : American Radio Relay League (ARRL) Page : 842 pages File Size : 47,5 Mb Release : 1997 Category : Antennas (Electronics) ISBN : 0872596133