Leyden jars or more powerful devices employing flat glass plates alternating with foil conductors were used exclusively up until about 1900, when the invention of wireless (radio) created a demand for standard capacitors, and the steady move to higher frequencies required capacitors with lower inductance.
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During the Anglo-Boer War in February 1899, he and others demonstrated the application of wireless telegraphy by transmitting signals over a distance of 120 metres on Cape Town's Grand Parade using equipment imported from Britain.
Perhaps the earliest mention of frequency hopping in the open literature is in radio pioneer Jonathan Zenneck's book Wireless Telegraphy (German, 1908, English translation McGraw Hill, 1915), although Zenneck himself states that Telefunken had already tried it.
The tone system is the use of two signals of different frequencies, i.e. Murgaš substituted the "dot" of the Morse code with a higher tone and the "dash" with a lower tone (this is the 1904 patent "The way of transmitted messages by wireless telegraphy").
The squadron was initially formed in September 1917 at RAF Spitalgate but had moved to Chattis Hill within the month to undertake Wireless Telegraphy training.
In October 1903,Guglielmo Marconi chose Lucania to carry out further experiments in wireless telegraphy, and was able to stay in contact with radio stations in Nova Scotia and Poldhu.
The Wireless Telegraphy Act 2006 (c 36) is an Act of the Parliament of the United Kingdom.