With his newly created Tesla coils, the inventor Nikola Tesla soon discovered that he could transmit and receive powerful radio signals when they were tuned to resonate at the same frequency. When a coil is tuned to a signal of a particular frequency, it literally magnifies the incoming electrical energy through resonant action. By early 1895, Tesla was ready to transmit a signal 50 miles to West Point, New York... But in that same year, disaster struck. A building fire consumed Tesla's lab, destroying his work.
The timing could not have been worse. In England, a young Italian experimenter named Guglielmo Marconi had been hard at work building a device for wireless telegraphy. The young Marconi had taken out the first wireless telegraphy patent in England in 1896. His device had only a two-circuit system, which some said could not transmit "across a pond." Later Marconi set up long-distance demonstrations, using a Tesla oscillator to transmit the signals across the English Channel.
Tesla filed his own basic radio patent applications in 1897. They were granted in 1900. Marconi's first patent application in America, filed on November 10, 1900, was turned down. Marconi's revised applications over the next three years were repeatedly rejected because of the priority of Tesla and other inventors.
But no patent is truly safe, as Tesla's career demonstrates. In 1900, the Marconi Wireless Telegraph Company, Ltd. began thriving in the stock markets�due primarily to Marconi's family connections with English aristocracy. British Marconi stock soared from $3 to $22 per share and the glamorous young Italian nobleman was internationally acclaimed. Both Edison and Andrew Carnegie invested in Marconi and Edison became a consulting engineer of American Marconi. Then, on December 12, 1901, Marconi for the first time transmitted and received signals across the Atlantic Ocean.
Otis Pond, an engineer then working for Tesla, said, "Looks as if Marconi got the jump on you." Tesla replied, "Marconi is a good fellow. Let him continue. He is using seventeen of my patents."
But Tesla's calm confidence was shattered in 1904, when the U.S. Patent Office suddenly and surprisingly reversed its previous decisions and gave Marconi a patent for the invention of radio. The reasons for this have never been fully explained, but the powerful financial backing for Marconi in the United States suggests one possible explanation.
Tesla was embroiled in other problems at the time, but when Marconi won the Nobel Prize in 1911, Tesla was furious. He sued the Marconi Company for infringement in 1915, but was in no financial condition to litigate a case against a major corporation. It wasn't until 1943�a few months after Tesla's death� that the U.S. Supreme Court upheld Tesla's radio patent number 645,576. The Court had a selfish reason for doing so. The Marconi Company was suing the United States Government for use of its patents in World War I. The Court simply avoided the action by restoring the priority of Tesla's patent over Marconi.
Radio's were first in homes and someone found a way to put a radio in a car. Actually 2 brothers in the 1910 worlds fair parked a car in front of the exhibit hall with a working car radio that they designed and installed. They called their invention a "Motor-ola", in reference to the "Victrola's" or record players people had in their houses. Everyone was excitied with the new invention that was in the vehicle. Eventually the two brothers formed a company called ------- "Motorola". True tale.
Yup, true...Fred and Anthony Motorola--Almost every car radio made since then commemorates those brothers with their initials on the face of the radio: AM/FM. (umm, maybe not.)
Before voice, radio Communication was through Morse Code, which was better than nothing but a bit difficult and not very enjoyable.
Voice made the radio a lot simpler to use. Talk and listen, done.
The primary driver behind the wireless (AKA radio) technology was the hope of replacing the telegraph. Telegraph wires were expensive and difficult to erect and maintain, and being able to use something with the same communications capability, WITHOUT requiring connecting wires, would be a huge commercial benefit.
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Plus of course of obvious value for shipping communications, probably the first real use of radio albeit by Morse Code only at first.
The FM radio was invented in 1933. It was invented by the inventor Edwin Howard Armstrong. He invented the frequency that allows radios to work.
Radios had long been invented in 1980. Only thing left to invent would be a novel item to add a radio to. maybe a radio toaster, a radio fishing ros, something like that.
The radio has gone through many changes including a switch from analog to digital. The first digital radio was invented in the late 1960s.
The transistor was invented by Bell Labs in 1948. Applications in consumer devices followed within a few years after that.
There are many types of emergency radios available. Some of the types of radio available include Ham radio, AM radios, FM radios, CB radios and walkie talkies.
The FM radio was invented in 1933. It was invented by the inventor Edwin Howard Armstrong. He invented the frequency that allows radios to work.
1907
in 1932
1929
You need at least two radios, one transmitter and one receiver to be able to say that you've invented radio.
Guglielmo Macaroni and Nikola Tesla
Two way radios were invented as a means of portable, man carried communication.
Nikola Tesla
a hardy hard hard
If you think about it all radios are actually wireless. Thus as the radio was invented in Victorian times - the Victorians DID have wireless radios.
it wasn't invented, because of the war
No. The radio was not invented until the 1860's