Importance and Primacy Conflicts
The most dynamic segments in the area of communications services today are internet services, mobile telephony and convergence of voice and data process. If we go back one hundred years to history we can see that development in this area began with wireless information transmission encoded in telegraphy marks and wireless voice transmission which was made by frequency modulation.
In 1905, Murgaš achieved radio transmission between Wilkes-Barre and Scranton, Pennsylvania, or a distance of 20 miles (30 km).
The tone system is the use of two signals of different frequencies, i.e. Murgaš substituted the "dot" of the Morse code with a higher tone and the "dash" with a lower tone (this is the 1904 patent "The way of transmitted messages by wireless telegraphy").
Thomas Edison paid remarkable attention to Murgaš's experiments and he is said to have informed G. Marconi of Murgaš's success. Murgaš's lab in Wilkes-Barre was visited by President Theodore Roosevelt in 1905.
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