Marconi 7777 patent
Guglielmo Marconi

Marconi 7777 patent
One of Marconis most famous inventions was that of tuning. The famous Marconi 7777 patent for Improvements in Apparatus for Wireless Telegraphy was granted on 26 April 1901. It arose out of the need to separate signals from each other because one of the major problems Marconi faced was that of interference between different transmitting stations. Using the concept behind the Marconi 7777 patent tuning of the transmitter, receiver and antenna enabled interference to be considerably reduced.The new invention was based in part on earlier work by Sir Oliver Lodge where Lodge had tuned the sending and receiving aerials. Lodge was unhappy as he felt it infringed his work and litigation followed. However the 7777 patent gave Marconi a significant edge over the competition Using concept of the patent allowed simultaneous transmissions on different frequencies something which was revolutionary in these early days of radio communications.The result was that radio communications stations close to one another were able to operate with reduced levels of interference and as a result ranges could be increased.
Later Life
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Honours and rejections
Guglielmo Marconi the Nobel Prize and Titanic
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Contributions and Achievements
Further Atlantic transmissions
Marconi business growing pains
Marconis death
Marconis wireless experiments
Marconi 7777 patent
Marconi rebuilds the transatlantic stations
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