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
WIRELESS TELEGRAPHY
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to the Titanic disaster, it now occupies a position far more
important than that taken merely from any commercial
standpoint, for it is no longer merely a convenience to busi-
ness or a means of furnishing the latest news for the en-
tertainment of passengers, but is a life-saving proposition
taking its place with the elaborate and costly systems of
railroad signals.
It is a curious fact that many of the most startling and
newest inventions find ready and peculiar application as
an aid in modern warfare. The nerves of every war ves-
sel and fort are the wires of the telephones, telegraphs,
telautographs, dynamos, storage batteries etc., that trans-
mit orders by speech or in writing, find the range, fire the
guns, explode the mines and seek out the enemy with a
powerful searchlight.
Every battle-ship, cruiser, etc., of the United States Navy
is now equipped and with the completion of the new ultra-
powerful station at Washington the War Department will
be enabled to issue instructions to a ship no matter where
it may be on the ocean or in what harbor it may lie.
The government maintains an elaborate equipment at
the Brooklyn Navy Yard where the future wireless oper-
ators of the Navy are given a course extending from seven
to ten weeks. The first few days are spent in mastering
the theory. The second week usually commences alternate
study and practice of the Continental Code which lasts
thoroughout the entire course or until thoroughly mas-
tered. Each week some special branch of study is given
out such as repairing and overhauling certain instruments.
At the end of seven weeks the student can usually send and
receive 15 words a minute. He is then given two weeks
to prepare for an examination which if passed rates him
as an electrician, third class, and qualifies him for active
work.