-Radio-telephony

—An approved term for wirele telephony. It is the transmi ion through distance of articulate speech by means of electromagnetic waves without the use of conducting wires between the transmitter and receiver. Its succe depends upon the production at the transmitting station of undamped electric oscillations which may be absorbed by a properly syntonized receiving antenna tuned to the wave length employed, and made to affect a telephone receiver so as to reproduce articulate sounds.