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ship radios
Edison took out a patent on a system of radio communication between ships, which he then sold to Guglielmo Marconi. -
Heinrich Rudolf Hertz
validated Maxwell's theory through experiment. He demonstrated that radio radiation had all the properties of waves and discovered that the electromagnetic -
Nikola Tesla
"On Light and other High Frequency Phenomena" before the Franklin Institute in Philadelphia and the National Electric Light Association St Louis. Tesla's primary interest in radio waves was as a power distribution system although he saw communication as a side aspect. -
British physicist Sir Oliver Lodge
demonstrated morse code signaling using radio waves using a "coherer". -
death...
Heinrich Rudolf Hertz died. -
The First Radio Is Used
by marconi in 1895 the first use of a radio was clamied by marconi some people say he wasnt the first one but just the first to claim it now this was not music it was probally dots and taps but radio doesnt mean music it means sending a signal wireless with out a line -
england
Marconi established the radio station on the Isle of Wight, England. -
Bose
Bose announced his invention of the "iron-mercury-iron coherer with telephone detector" that was shown in presentation in england -
Audion Tube
an audion tube is a amplifyer that just amp's how far thesignal goes made by Lee De Forest but canadian inventor Reginald Fessenden supposly came up with the idea but didnt seem to make it in the history books for it. -
First Radio Station
the first radio station was called 8XK but later renamed KDKA made by Frank Conrad but its still around today in pittsburg, pennsylvania. -
Money Making Radio Stations?
in 1922 the company WEAF aired a 10 min comercial or toll broadcast for an apartment complex charging $50 this means $10 a min -
Uncle Charlie
at this point uncle charlie was getting too popular wich means anybody with the money and equipmeant could run a radios station in theyre basemeant well when this got to much people doing this the FRC (Federal Radio Comission) made it a law where you had to have a licensing for transmitters FRC was established in 1927 but they also started assigning radio station frequinces call letters (K for west W for east) and power limits. -
FM Start
patented by inventor Edwin H. Armstrong. FM uses frequency modulation of the radio wave to reduce static and interference from from eletric equipmeant and the atmosphere. -
1973
as a result of experiments, first described the theoretical basis of the propagation of electromagnetic waves in his paper to the Royal Society A Dynamical Theory of the Electromagnetic Field by maxwell.