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" ... amperes. CODING OF WAVE LENGTHS The great advantage of this set lies in the fact that any desired wave length from 675 to 2,220 meters can be sent out at will and if the wave length is changed after every word of a message, according to a pre-arranged... "
Radiotelegraphy: U.S. Signal Corps, 1914 - Page 95
by United States. Army. Signal Corps - 1914 - 122 pages
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The Wireless Age, Volume 5

Radio - 1917 - 1082 pages
...rubber-covered counterpoise works best at about 1,000 meters, where the antenna hot-wire ammeter reads about 7^4 amperes. Coding of Wave Lengths The great advantage...a message, according to a prearranged code of wave lengths — for example, the first word sent with 700 meters, the next with 2,100, the next with 1,400,...
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Radiotelegraphy, U. S. Signal Corps

Signal Office - 1914 - 144 pages
...at about 1,000 meters, where the antenna hot-wire ammeter reads about 1\ amperes. RADIOTELEGRAPHY. CODING OF WAVE LENGTHS. The great advantage of this...a message, according to a prearranged code of wave lengths — for example, the first word sent with 700 meters, the next with 2,100, the next with 1,400,...
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Radiotelegraphy: U.S. Signal Corps. : Rev. October 1916

United States. Army. Signal Corps - Telegraph, Wireless - 1917 - 144 pages
...rubber-covered counterpoise works best at about 1,000 meters, where the antenna hot-wire ammeter reads about 1\ amperes. CODING OF WAVE LENGTHS. The great advantage...lies in the fact that any desired wave length from 075 to 2,220 meters can be sent out at will and if the wave length is changed after every word of a...
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Military Signal Corps Manual

United States - 1918 - 596 pages
...counterpoise works best at about 1,000 meters, where the antenna hot-wire ammeter reads about 7'/.t amperes. CODING OF WAVE LENGTHS The great advantage...message, according to a pre-arranged code of wave lengths — for example, the first word sent with 700 meters, the next with 2,100, the next with 1,400,...
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