Editing Coaxial cable (section)

== History ==

[[Image:WNBC-AM early coaxial feedline.jpg|thumb|Early coaxial antenna feedline of {{val|50|u=kW}} radio station [[WFAN (AM)|WNBC]], New York, 1930s]]
[[File:AT&T coaxial trunkline 1949.jpg|thumb|upright|AT&T coaxial cable trunkline installed between East Coast and Midwest in 1948. Each of the 8 coaxial subcables could carry 480 telephone calls or one television channel.]]

* 1858 — Coaxial cable used in first (1858) [[Transatlantic telegraph cable|transatlantic cable]].<ref>{{cite journal|journal=Harper's Weekly|issue=38|date=May 12, 1894|pages=447–448|title=Coaxial cable used in first Transatlantic telegraph cable|isbn=978-0-8018-6909-9}}</ref>
* 1880 — Coaxial cable patented in [[England]] by [[Oliver Heaviside]], patent no. 1,407.<ref>{{cite book|title=Oliver Heaviside|first=Paul J.|last=Nahin|chapter-url=https://books.google.com/books?id=e9wEntQmA0IC&q=coaxial+cable+Oliver+Heaviside&pg=PA29|chapter=3: The First Theory of the Electric Telegraph|date=13 November 2002|publisher=JHU Press |isbn=978-0-8018-6909-9}}</ref>
* 1884 — [[Siemens & Halske]] patent coaxial cable in [[Germany]] (Patent No. 28,978, 27 March 1884).<ref>{{cite book|last=Feldenkirchen|first=Wilfried|title=Werner von Siemens - Inventor and International Entrepreneur|year=1994|publisher=Ohio State University Press |isbn=0-8142-0658-1}}</ref>
* 1894 — [[Nikola Tesla]] (U.S. Patent 514,167)
* 1929 — First modern coaxial cable patented by [[Lloyd Espenschied]] and [[Herman Affel]] of [[AT&T (1885-2005)|AT&T's]] [[Bell Labs|Bell Telephone Laboratories]].<ref>{{US patent|1835031}}</ref>
* 1936 — First [[Closed-circuit television|closed circuit]] transmission of [[television|TV]] pictures on coaxial cable, from the [[1936 Summer Olympics]] in Berlin to [[Leipzig]].<ref>{{cite web|website=earlytelevision.org|url=http://www.earlytelevision.org/1936_olympics.html|title=Early Electronic Television - The 1936 Berlin Olympics|archive-url=https://web.archive.org/web/20071203011029/http://www.earlytelevision.org/1936_olympics.html|archive-date=2007-12-03}}</ref>
* 1936 — Underwater coaxial cable installed between [[Apollo Bay]], near [[Melbourne]], Australia, and [[Stanley, Tasmania]]. The {{cvt|300|km|adj=on}} cable can carry one 8.5-kHz broadcast channel and seven telephone channels.<ref>{{cite book|title=The worldwide history of telecommunications|first=Anton A.|last=Huurdeman|chapter-url=https://books.google.com/books?id=SnjGRDVIUL4C&q=1936%20underwater%20coaxial%20cable%20Apollo%20Bay&pg=PA334|chapter=Copper-Line Transmission|date=31 July 2003|publisher=John Wiley & Sons |isbn=978-0-471-20505-0}}</ref>
* 1936 — AT&T installs experimental coaxial telephone and television cable between [[New York City|New York]] and [[Philadelphia]], with automatic booster stations every {{convert|10|mi|spell=in}}. Completed in December, it can transmit 240 telephone calls simultaneously.<ref>{{cite magazine|archive-url=https://web.archive.org/web/20071013200404/http://www.time.com/time/magazine/article/0,9171,757144-1,00.html|url=http://www.time.com/time/magazine/article/0,9171,757144-1,00.html|archive-date=2007-10-13|title=Coaxial Debut|magazine=[[Time (magazine)|Time]]|date=December 14, 1936}}</ref><ref>{{cite web|website=Boing Boing|url=http://gadgets.boingboing.net/2009/04/17/gallery-an-illustrat.html|title=Gallery: An illustrated history of the transoceanic cable}}</ref>
* 1936 — Coaxial cable laid by the [[General Post Office]] (now [[British Telecom|BT]]) between [[London]] and [[Birmingham]], providing 40 telephone channels.<ref>{{cite book|url=https://books.google.com/books?id=DL73f4vFeEwC&q=coaxial+cable+London+and+Birmingham&pg=PA819|title=Broadcast engineer's reference book|first=Edwin Paul J.|last=Tozer|year=2004|publisher=Taylor & Francis |isbn=978-0-240-51908-1}}</ref><ref>{{cite web|website=Radio-electronics.com|url=http://www.radio-electronics.com/info/antennas/coax/rf-coaxial-feeder-cable.php|title=Coaxial feeder or RF coax cable}}</ref>
* 1941 — First commercial use in US by AT&amp;T, between [[Minneapolis]], Minnesota and Stevens Point, Wisconsin. L1 system with capacity of one TV channel or 480 telephone circuits.
* 1949 — On January 11, eight stations on the US East Coast and seven Midwestern stations are linked via a long-distance coaxial cable.<ref name="Teacho-1949">{{cite news|last1=Teachout|first1=Terry|title=The New-Media Crisis of 1949|url=https://www.wsj.com/news/articles/SB10001424052970204683204574357332713730174|newspaper=Wall Street Journal|access-date=19 January 2015}}</ref>
* 1956 — First transatlantic telephone coaxial cable laid, [[TAT-1]].<ref>{{cite web|website=Atlantic-cable.com|url=http://atlantic-cable.com/Souvenirs/1956TAT-1/|title=1956 TAT-1 Silver Commemorative Dish}}</ref><ref>{{cite book|url=https://books.google.com/books?id=SnjGRDVIUL4C&q=1956+TAT-1&pg=PA470|title=The worldwide history of telecommunications|first=Anton A.|last=Huurdeman|date=31 July 2003|publisher=John Wiley & Sons |isbn=978-0-471-20505-0}}</ref>

* 1962 — {{convert|960|km|mi|adj=on|abbr=on}} [[Sydney–Melbourne co-axial cable]] commissioned, carrying 3 x 1,260 simultaneous telephone connections, and-or simultaneous inter-city television transmission.<ref>{{cite web|url=http://primeministers.naa.gov.au/timeline/results.aspx|title=Australia's Prime Ministers|publisher=National Archives of Australia|access-date=14 September 2013|archive-url=https://web.archive.org/web/20170804142705/http://primeministers.naa.gov.au/timeline/results.aspx|archive-date=4 August 2017}}</ref><ref>{{cite book|title=The Australasian Engineer|year=1962|page=33}}</ref>