Your Girl Friday International

In an article in The Evening News of Roseburg, Oregon on May 05, 1919 it states that: Ernst F. W. Alexanderson, consulting engineer of the company, told of the development of the barrage receiver and wireless telephony Ideas at a. meeting of the Institute of Radio Engineers at 29 West Thirty-ninth street recently. Ernst F. W. Alexanderson, consulting engineer of the company, told of the development of the barrage receiver and wireless telephony Ideas at a. meeting of the Institute of Radio Engineers at 29 West Thirty-ninth street recently. Doctor Alexanderson told the engineers that obviously some system of simultaneous sending and receiving would have to be invented before wireless telephony would ever become commercially practicable. Switching from one apparatus to another to send and receive would be annoying and delaying. For Instance, the user of the telephone on this side of the Atlantic says :”Hello” Into the mouthpiece, ……