Wireless Telegraphy and Telephony
Forfatter: Alfred P. Morgan
År: 1917
Forlag: The Norman W. Henley Publishing Company
Sted: New York
Udgave: Third Edition, Fully Illustrated
Sider: 33
UDK: 621.396.1 Mor
A practical Treatise on Wireless Telegraphy and Telephony, giving Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and its Present Day Applications, together with a chapter on the possibilities of its Future Development
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INDEX
A
Action of directive aerials, 19,
20.
Aerial, 8, 9.
amateur, 13, 18, 23, 26.
fan, 18.
flat top, 18, 19, 22, 23.
insulator, 25.
inverted pyramid, 18.
inverted “L,” 20, 21, 24.
inverted “U,” 21.
loop, 24.
mast, 18.
purpose of, 12.
straightaway, 24.
switch, 44, 45, 46.
transatlantic, 142.
types of, 18.
umbrella, 18, 22.
under influence of waves, 10.
“V” type, 20, 21, 24.
• wire, 24, 25.
Aeroplane, wireless on, 93.
Air, ionization of, 14.
waves, 109.
Airship, “Akron,” 93.
“America,” 97.
lightweight apparatus for, 83.
wireless apparatus, 95.
Alternating current, 11, 36, 37,
cycle, 38.
Amateur, aerial, 13, 18, 23, 26.
aerial switch, 45.
station, 11, 23, 26, 138.
wireless experimenter, 145.
Antenna, purpose of, 12.
Apparatus, transmitting, 27.
Arc, 121, 122.
Poulsen, 131.
speaking, 121, 122.
Arcing, 39.
Army, aerial, 18.
orders issued by wireless, 88.
station at Fort Gibbons, 14.
Arsenic, 55.
Atlantic, seaboard stations, 15.
Audion detector, 134, 135.
Auditory canal, 106.
nerve, 105.
Automobile wireless, 89, 90, 91.
B
Battery, detector, 58, 60, 66.
Bellini-Tosi system of directive
telegraphy, 80, 81, 82.
Bell’s photophone, 116.
Braun, system of directive
waves, 78, 79.
Breaking-in system, 102, 103.
Brush discharge from aerial,
135.
from condenser, 38.