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wireless communication
The idea of wireless communication predates the discovery of "radio" with experiments in "wireless telegraphy" via transmission through the ground, water, and even train tracks from the 1830s on. -
Electromagnetic waves
James Clerk Maxwell showed in theoretical and mathematical form in 1864 that electromagnetic waves could propagate through free space. -
Transmitted airborne electromagnetic
In 1888 Heinrich Rudolf Hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism. -
Telegraphy system
Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission). -
Transmitted the human voice
In 1900, Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessly for a distance of approximately a half mile. -
First Factory
In June 1912 Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England. -
First Radio News Program
The first radio news program was broadcast August 31, 1920 by station 8MK in Detroit, Michigan, which survives today as all-news format station WWJ under ownership of the CBS network. -
Single Sideband and Frequency Modulation
In the early 1930s, single sideband and frequency modulation were invented by amateur radio operators. -
Mobile Telephone Service.
In 1947 AT&T commercialized the Mobile Telephone Service. -
Regency
In 1954 Regency introduced a pocket transistor radio, the TR-1, powered by a "standard 22.5V Battery". -
Vor systems
In the early 1960s, VOR systems finally became widespread for aircraft navigation; before that, aircraft used commercial AM radio stations for navigation. (AM stations are still marked on U.S. aviation charts). -
Mobile Phone
The Advanced Mobile Phone System analog mobile cell phone system, developed by Bell Labs, was introduced in the Americas in 1978,[44][45][46] gave much more capacity. -
Global Positioning
culminating in the launch of the Global Positioning System (GPS) constellation in 1987. -
First internet
The first Internet concert was broadcast on June 24, 1993 by the band Severe Tire Damage. -
Internet radio stations
From 2000 onwards, most Internet Radio Stations increased their stream quality as bandwidth became more economical. -
Royalty
On January 31, 2016, webcasters who are governed by rules adopted by the Copyright Royalty Board were required to pay to SoundExchange an annual, nonrefundable minimum fee of $500 for each channel and station.[
