-
Hans Christian Ørsted discovers the relationship between electricity and magnetism, both very important for components used in the radio.
-
Tesla conducts experiments with wireless power in Colorado Springs. Wireless power is fundamental because of its use to transmit radio waves.
-
Reginald Fessenden makes the very first voice transmission through airwaves, while weak, a voice transmission was a big breakthrough for transmitting in the future.
-
The very first clear human voice transmission.
-
Argentina begins broadcasting entertainment regularly through wireless radio.
-
KDKA becomes the first commercial American broadcasting station.
-
FM radio, the most commonly used radio, is invented.
-
The pocket transistor radio is made available, radio is now portable.
-
VOR short-range radio replaces AM radio as a form of communication for aircraft navigation.
-
Radio satellite TESLSTAR was launched, proving how far radio has come.
-
Navstar GPS is launched with a radio navigation system. The GPS satellites provide free information about locations to both the government and civilians.
-
The U.S. army and DARPA create and launch a type of radio that could change its type by changing its software, further proving the adaptability of radios.