Editing AM broadcasting (section)

===Early broadcasting development===
[[File:Mariette Mazarin 1908 radio broadcast.png|thumb|One of the earliest radio broadcasts, French soprano Mariette Mazarin singing into Lee de Forest's arc transmitter in New York City on February 24, 1910]]
[[File:De Forest xmtr broadcasting presidential election Nov 1916.jpg|thumb|Lee de Forest used an early vacuum-tube transmitter to broadcast returns for the Hughes-Wilson presidential election returns on November 7, 1916, over [[Radio 2XG|2XG]] in New York City. Pictured is engineer Charles Logwood.]]
The idea of broadcasting — the unrestricted transmission of signals to a widespread audience — dates back to the founding period of radio development, even though the earliest radio transmissions, originally known as "Hertzian radiation" and "wireless telegraphy", used [[spark-gap transmitter]]s that could only transmit the dots-and-dashes of [[Morse code]]. In October 1898 a London publication, ''The Electrician'', noted that "there are rare cases where, as Dr. [[Oliver Lodge|[Oliver] Lodge]] once expressed it, it might be advantageous to 'shout' the message, spreading it broadcast to receivers in all directions".<ref>[https://babel.hathitrust.org/cgi/pt?id=njp.32101050973286&view=1up&seq=842 "Wireless Telegraphy"], ''The Electrician (London)'', October 14, 1898, pp. 814–815.</ref> However, it was recognized that this would involve significant financial issues, as that same year ''The Electrician'' also commented "did not Prof. Lodge forget that no one wants to pay for shouting to the world on a system by which it would be impossible to prevent non-subscribers from benefiting gratuitously?"<ref>[https://babel.hathitrust.org/cgi/pt?id=uc1.c2602954&view=1up&seq=476 "Hertzian Telegraphy at the Physical Society], ''The Electrician (London)'', January 28, 1898, pp. 452–453.</ref>

On January 1, 1902, [[Nathan Stubblefield]] gave a short-range "wireless telephone" demonstration, that included simultaneously broadcasting speech and music to seven locations throughout Murray, Kentucky. However, this was transmitted using [[electromagnetic induction|induction]] rather than radio signals, and although Stubblefield predicted that his system would be perfected so that "it will be possible to communicate with hundreds of homes at the same time", and "a single message can be sent from a central station to all parts of the United States", he was unable to overcome the inherent distance limitations of this technology.<ref>[https://gahistoricnewspapers.galileo.usg.edu/lccn/sn87090456/1902-03-08/ed-1/seq-6/ "Kentucky Inventor Solves Problem of Wireless Telephony"], ''The Sunny South'', March 8, 1902, p. 6.</ref>

The earliest public radiotelegraph broadcasts were provided as government services, beginning with daily time signals inaugurated on January 1, 1905, by a number of U.S. Navy stations.<ref>[https://books.google.com/books?id=WsYSAAAAYAAJ&pg=PA52 "The First Wireless Time Signal"] (letter from Captain J. L. Jayne), ''Electrician and Mechanic'', January 1913, page 52. (Reprinted from ''The American Jeweler'', October 1912, p. 411).</ref> In Europe, signals transmitted from a station located on the [[Eiffel Tower]] were received throughout much of Europe. In both the United States and France this led to a small market of receiver lines geared for jewelers who needed accurate time to set their clocks, including the Ondophone in France,<ref>[https://babel.hathitrust.org/cgi/pt?id=njp.32101042848000&view=1up&seq=903 "Vest-Pocket Wireless Receiving Instrument"], ''Electrical Review and Western Electrician'', April 11, 1914, p. 745.</ref> and the De Forest RS-100 Jewelers Time Receiver in the United States<ref>[https://books.google.com/books?id=-MI7AQAAMAAJ&pg=PA200 "Radio Apparatus"] (advertisement), ''Radio Amateur News'', October 1919, p. 200.</ref>
The ability to pick up time signal broadcasts, in addition to Morse code weather reports and news summaries, also attracted the interest of [[amateur radio]] enthusiasts.