My region: Россия

Modulation

Published 15.07.2010 Presenter Anton Pankratov

Historical facts.
In March, 1896 the world's first radio signal transmission was implemented.
Radio message was composed of two words ("Heinrich Hertz") and was transmitted by means of telegraphic alphabet, or dot-and-dash code.
The first voice message went on the air on December 24, 1906.
So why did it take 10 years to transmit a voice message ...