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etc., in which the messages, etc., are transmitted through space by electric waves; as, a wireless message. -- Wireless telegraphy or telegraph (Elec.), any system of telegraphy employing no connecting wire or wires between the transmitting and receiving stations. Although more or less successful researchers were made…

d deposit of silver on glass, used in connection with the receiving apparatus for reading wireless signals. The electric waves falling on this contrivance increase its resistance several times. The anticoherer can be used in conjunction with a telephone.

ld together, a condition easily destroyed by tapping. A common form of coherer as used in wireless telegraphy consists of a tube containing filings (usually a pinch of nickel and silver filings in equal parts) between terminal wires or plugs (called conductor plugs).

ument for determining the frequency of electic wave oscillations, esp. in connection with wireless telegraphy.

Designating, or pert. to, Marconi's system of wireless telegraphy; as, Marconi aërial, coherer, station, system, etc.

A system or wireless telegraphy developed by G. Marconi, an Italian physicist, in which Hertzian waves are used in transmission and a coherer is used as the receiving instrument.

A Marconi wireless message.

The apparatus used in Marconi wireless telegraphy.

The theory or practice of Marconi's wireless telegraph system.

ng electric oscillations; esp., an apparatus for generating electric waves in a system of wireless telegraphy.

A wireless telegraph.

Telegraphy using the radiant energy of electrical (Hertzian) waves; wireless telegraphy; -- the term adopted for use by the Radiotelegraphic Convention of 1912.

A wireless telephone. -- Ra`di*o*te*leph"o*ny (#), n.

An induction coil, esp. of an internal-combustion engine, wireless telegraph apparatus, etc.

Of or pert. to syntony; specif., designating, or pert. to, a system of wireless telegraphy in which the transmitting and receiving apparatus are in syntony with, and only with, one another. -- Syn*ton"ic*al (#), a. --Syn*ton"ic*al*ly, adv.

of a certain wave length; to tune; specif., to put (two or more instruments or systems of wireless telegraphy) in syntony with each other. -- Syn`to*ni*za"tion (#), n.

denser with a pair of adjustable spark balls, for attuning the time periods of antennæ in wireless telegraphy (called also syntonizing coil).

of an apparatus emitting electric oscillations and that of a receiving apparatus, esp. in wireless telegraphy.