Knowledge (XXG)

Imperial Wireless Chain

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298:, to "consider and advise upon the policy to be adopted as regards an Imperial wireless service so as to protect and facilitate public interest." Its report was presented to the Postmaster-General on 23 February 1924 The committee's recommendations were similar to those of the Norman Committee – that any stations in the United Kingdom used to communicate with the Empire should be in the hands of the state, that they should be operated by the Post Office, and that eight high-power 335:
Beam Wireless Services with the cable services of various parts of the empire, to report upon it and to make recommendations with a view to a common policy being adopted by the various governments concerned." It concluded that the cable companies would not be able to compete in an unrestricted market, but that the cable links remained of both commercial and strategic value. It therefore recommended that the cable and wireless interests of the
86: 2101: 413: 181:, the committee unanimously concluded that a "chain of Imperial wireless stations" should be established as a matter of urgency. An expert committee also advised that Marconi were the only company with technology that was proven to operate reliably over the distances required (in excess of 2,000 miles (3,200 km)) "if rapid installation and immediate and trustworthy communication be desired". 22: 2111: 391:. Due to such factors Cable and Wireless were never able to earn the revenue which had been forecast, resulting in low dividends and an inability to reduce the rates charged to customers as much as had been expected. To ease the financial pressure, the British Government finally decided to transfer the beam stations to Cable and Wireless, in exchange for 2,600,000 of the 30,000,000 2090: 2121: 334:
companies. An "Imperial Wireless and Cable Conference" was therefore held in London in January 1928, with delegates from the United Kingdom, the self-governing Dominions, India, the Crown Colonies and Protectorates, to "examine the situation which arose as a result of the competition of the Imperial
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concentrated the radio transmission into a narrow directional beam). The beam stations would communicate with those Dominions that chose the new shortwave technology. Parliament finally approved an agreement between the Post Office and Marconi to build beam stations to communicate with Canada, South
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to provide the service and concluded that no government department was in a position to do so, and the Treasury were reluctant to fund the creation of a new department. Contracting the construction to a commercial "wireless company" was the favoured option, and a contract was signed with Marconi's
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Government nationalised Cable and Wireless, integrating its UK assets with those of the Post Office. By this stage, however, three of the original stations had been closed, after the service was centralised during 1939–1940 at Dorchester and Somerton. The longwave Rugby radio station continued to
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position. The merged company would be overseen by an Imperial Advisory Committee, would purchase the government-owned cables in the Pacific, West Indies and Atlantic, and would also be given a lease on the beam stations for a period of 25 years, for the sum of £250,000 per year.
507:, erected in a line at 640 feet (200 m) intervals and at right angles to the overseas receiving station. These were topped by cross-arm measuring 10 feet (3.0 m) high by 90 feet (27 m) wide, from which the vertical wires of the aerial were hung, forming a " 275:. However, the report was not acted upon. While British politicians procrastinated, Marconi constructed stations for other nations, linking North and South America, as well as China and Japan, in 1922. In January 1922 the 326:
From when the Post Office began operating the "Post Office Beam" services, through to March, 31st, 1929, they had earned gross receipts of £813,100 at a cost of £538,850, leaving a net surplus of £274,250.
247:(the Norman Committee), which reported in 1920. The Norman Report recommended that transmitters should have a range of 2,000 miles, which required relay stations, and that Britain should be connected to 313:(announced on 13 July 1922 by the previous government) would be completed since it used proven technology, in addition to which a number of shortwave "beam stations" would be built (so called because a 2155: 153:. The proposed stations would directly compete with cables for a fixed amount of transoceanic telegram traffic, reducing the revenue of the cable companies and possibly bankrupting them. 146:
to construct a series of wireless telegraphy stations to link the British Empire within three years. While not then accepted, the Marconi proposal created serious interest in the concept.
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Limited, with Cable and Wireless Limited being renamed as Cable and Wireless (Holding) Limited. From the beginning of April 1928 the beam services were operated by the Post Office as
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Even before the final link became operational between Australia and Canada, it was apparent that the commercial success of the Wireless Chain was threatening the viability of the
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led to the suspension of the contract by the government. Meanwhile Germany successfully constructed its own wireless chain before the war, at a cost equivalent to two million
128:, as indeed happened during the war. Starting around 1908, industrialized nations built global networks of powerful transoceanic wireless telegraphy stations to exchange 359:, leading to the creation of two new companies on 8 April 1929; an operating company Imperial and International Communications, in turn owned by a holding company named 511:". At Tetney the antenna for India was similar to those at Bodmin and Bridgwater, while the Australian aerial was carried on three 275 feet (84 m) high masts. 233: 420:
The shortwave Imperial Wireless Chain "beam stations" operated in pairs; one transmitting and one receiving. Pairs of stations were sited at (transmitters first):
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added their voice to the demands for action, adopting a resolution urging the government to urgently resolve the matter, as did other organisations such as the
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stations should be used, as well as land-lines. The scheme was estimated at £500,000. At the time the committee was unaware of Marconi's 1923 experiments into
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Parliament's decision came shortly after legal action initiated by Marconi in June 1919, claiming £7,182,000 in damages from the British government for
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radio transmissions, which offered a much cheaper alternative – although not a commercially proven one – to high-power long-wave transmission system.
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At Bodmin and Bridgwater, each aerial stretched to nearly half a mile (800 m) long, and consisted of a row of five 277 feet (84 m) high
243:, and in which they were awarded £590,000 by the court. The government also commissioned the "Imperial Wireless Telegraphy Committee" chaired by 340: 2150: 2067: 225: 2062: 2052: 2032: 1834: 841: 829: 769: 593: 581: 817: 715: 703: 2165: 2145: 867: 781: 569: 287: 805: 2180: 2175: 2057: 1903: 691: 232:) and Egypt (in Cairo), to be completed in early 1920 – although in the event the link opened on 24 April 1922, two months after the UK 1829: 1923: 537: 162: 1708: 1256: 1058: 416:
A much smaller, more recent shortwave "curtain antenna" (unconnected with the Imperial Wireless Chain) illustrates the principle
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became a strategic defense technology, as it was realized that a nation without radio could be isolated by an enemy cutting its
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A dilemma faced by Britain throughout the negotiations to establish the chain was that Britain owned the largest network of
1839: 244: 2124: 977: 918: 894: 753: 77:, Egypt, eventually opened on 24 April 1922, with the final link, between Australia and Canada, opening on 16 June 1928. 2114: 1875: 1772: 1315: 1082: 276: 228:
agreed in 1919 that £170,000 should be spent constructing the first two radio stations in the chain, in Oxfordshire (at
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Wireless Telegraph Company in March 1912. The government then found itself facing severe criticism and appointed a
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Following the Donald Report and discussions with the Dominions, it was decided that the high-power
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and Marconi's Wireless Telegraph Company should be merged to form a single organisation holding a
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continuing to apply pressure on the government to provide an "Imperial wireless system", the
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Electronic components for the system were built at Marconi's New Street wireless factory in
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The Tentacles of Progress : Technology Transfer in the Age of Imperialism, 1850–1940
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voting in favour, 140 against. The course of these events was disrupted somewhat by the
1779: 1651: 1626: 1586: 1556: 1431: 1266: 1152: 450: 209: 109: 85: 50: 26: 965:, Paul Hewitt, Tetney County Primary School, published 2005-09-24, accessed 2010-10-04 2139: 1928: 1701: 1691: 1606: 1496: 1491: 1481: 1466: 1288: 1147: 504: 484: 368: 295: 16:
Radiotelegraphic communications network within the British Empire in the 20th century
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Papers Past, Evening Post (New Zealand), published 1927-10-05, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1928-07-10, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1923-07-18, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1926-11-20, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1924-02-25, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1922-12-08, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1923-01-29, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1922-08-16, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1921-07-21, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1922-01-27, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1921-07-16, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1919-08-04, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1915-09-11, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1928-06-16, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1921-11-21, accessed 2010-10-03
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Papers Past, Evening Post (New Zealand), published 1923-04-23, accessed 2010-10-03
283:, which claimed that the Empire was suffering "incalculable loss" in its absence. 184:
After further negotiations prompted by Treasury pressure, a modified contract was
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History of the Atlantic Cable & Submarine Telegraphy – Cable & Wireless
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was a strategic international communications network of powerful long range
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to implement an operational system. The first link in the chain, between
1986: 1971: 1030: 388: 2016: 1976: 1298: 1090: 1043: 468: 440: 424: 248: 399:. The ownership of the beam stations was reversed in 1947, when the 735:. Vol. 103, no. 96. New Zealand. 26 April 1922. p. 7 363:. In 1934 Imperial and International Communications was renamed as 2001: 1938: 1246: 444: 294:
government commissioned the Empire Wireless Committee, chaired by
196:, when it was alleged that highly placed members of the governing 84: 74: 20: 692:
Post Office Contracts Marconi Wireless Telegraph Company, Limited
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party had used their knowledge of the negotiations to indulge in
1943: 1047: 212:, and was able to use it to its advantage during the conflict. 1189: 909:
The Canberra Times, published 1928-07-28, accessed 2010-10-04
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Shortwave Central, published 2010-11-30, accessed 2011,03-06
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Subterranea Britannica, Malcolm Hancock, accessed 2010-10-04
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The conference's recommendations were incorporated into the
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Eastern Extension, Australasia and China Telegraph Company
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The areas of the world that at one time were part of the
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Library of Congress (Open Library), accessed 2010-10-04
612:. New York: Oxford University Press. pp. 126–130. 371:
for Imperial and International Communications Limited.
639:. Scientific American Publishing Co. pp. 259–263. 524:
was home to a receiving station until the outbreak of
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to examine the topic. After hearing evidence from the
116:, dominated early radio. In the period leading up to 885:, Hansard, published 1929-07-22, accessed 2010-10-04 661:, Hansard, Published 1913-08-08, accessed 2010-10-03 61:
machines. Although the idea was conceived prior to
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History of telecommunications in the United Kingdom
2025: 1962: 1884: 1848: 1805: 1746: 1680: 1389: 1081: 936:Hansard, published 1938-05-30, accessed 2010-10-04 929: 927: 878: 876: 907:Empire Communications – Cable and Wireless Merger 687: 685: 683: 681: 679: 654: 652: 650: 648: 646: 385:International Telephone and Telegraph Corporation 65:, the United Kingdom was the last of the world's 973: 971: 852: 850: 404:remain under Post Office ownership throughout. 318:Africa, India and Australia, on 1 August 1924. 156:Parliament ruled out the creation of a private 565: 563: 1059: 8: 395:in the company, under the provisions of the 2074:Global telecommunications regulation bodies 760:, published 1919-07-26, accessed 2010-10-03 671:The Official History of Rugby Radio Station 2110: 1066: 1052: 1044: 1002:The Marconi Company Departments 1912–1970 958: 956: 954: 694:Hansard, 1924-08-01 , accessed 2010-10-03 188:by Parliament on 8 August 1913, with 221 135:traffic with their overseas colonies. 411: 729:"Wireless Service: Britain–Egypt Route" 559: 475:– the latter actually in the hamlet of 895:Imperial Wireless and Cable Conference 990:Beam Wireless – The Original Stations 7: 2120: 142:received a formal proposal from the 491:in Canada, and with Kliphevel (now 204:in Marconi shares. The outbreak of 383:, as well as competition from the 241:breach of their July 1912 contract 114:Marconi Wireless Telegraph Company 14: 2161:Telecommunications infrastructure 1011:Martin Bates, accessed 2010-10-04 754:Marconi Company Wins From Britain 538:List of Marconi wireless stations 379:The 1930s saw the arrival of the 2191:Transatlantic telecommunications 2119: 2109: 2100: 2099: 2088: 1709:Free-space optical communication 948:Bill Glover, accessed 2010-10-04 220:With the end of the war and the 633:Lescarboura, Austin C. (1922). 286:Under this pressure, after the 91:Hillmorton transmitting station 1027:– Tetney County Primary School 1: 2151:History of telecommunications 104:invented the first practical 49:to link the countries of the 2095:Telecommunication portal 1876:Telecommunications equipment 1040:– South Dorset Radio Society 606:Headrick, Daniel R. (1988). 397:Imperial Telegraphs Act 1938 361:Cable & Wireless Limited 357:Imperial Telegraphs Act 1929 277:British Chambers of Commerce 31:British overseas territories 2166:Radio in the United Kingdom 2146:History of radio technology 1612:Alexander Stepanovich Popov 770:Relays in the Wireless Line 177:, and representatives from 2207: 2181:1928 in the United Kingdom 2176:1922 in the United Kingdom 1316:Telecommunications history 234:declared Egypt independent 151:submarine telegraph cables 126:submarine telegraph cables 89:Longwave masts at Rugby's 2083: 1924:Public Switched Telephone 1736:telecommunication circuit 1697:Fiber-optic communication 1442:Francis Blake (telephone) 1237:Optical telecommunication 345:Western Telegraph Company 337:Eastern Telegraph Company 45:stations, created by the 1835:Orbital angular-momentum 1272:Satellite communications 1111:Communications satellite 1031:Dorchester Radio Station 934:Imperial Telegraphs Bill 919:An Important Development 743:– via Papers Past. 1714:Molecular communication 1537:Gardiner Greene Hubbard 1366:Undersea telegraph line 1101:Cable protection system 1007:20 October 2010 at the 439:in Australia, and with 39:Imperial Wireless Chain 1856:Communication protocol 1642:Charles Sumner Tainter 1457:Walter Houser Brattain 1402:Edwin Howard Armstrong 1210:Information revolution 818:Link Up Wireless Chain 417: 375:Transfers of ownership 311:Rugby longwave station 98: 34: 33:are underlined in red. 1830:Polarization-division 1562:Narinder Singh Kapany 1527:Erna Schneider Hoover 1447:Jagadish Chandra Bose 1427:Alexander Graham Bell 1158:online video platform 806:New Wireless Services 659:New Marconi Agreement 415: 288:1922 General Election 190:Members of Parliament 88: 24: 1672:Vladimir K. Zworykin 1632:Almon Brown Strowger 1602:Charles Grafton Page 1257:Prepaid mobile phone 1185:Electrical telegraph 1036:23 July 2008 at the 365:Cable & Wireless 1622:Johann Philipp Reis 1381:Wireless revolution 1343:The Telephone Cases 1200:Hydraulic telegraph 1025:Tetney Beam Station 963:Tetney Beam Station 868:High Power Wireless 830:Radio Communication 636:Radio for Everybody 479:which is nearer to 315:directional antenna 73:in Oxfordshire and 1820:Frequency-division 1797:Telephone exchange 1667:Charles Wheatstone 1597:Jun-ichi Nishizawa 1572:Innocenzo Manzetti 1507:Reginald Fessenden 1242:Optical telegraphy 1075:Telecommunications 758:The New York Times 704:The Wireless Chain 418: 281:Empire Press Union 106:radio transmitters 99: 47:British government 35: 2171:Guglielmo Marconi 2133: 2132: 1871:Store and forward 1866:Data transmission 1780:Network switching 1731:Transmission line 1577:Guglielmo Marconi 1542:Internet pioneers 1407:Mohamed M. Atalla 1376:Whistled language 548:Telecommunication 322:Commercial impact 296:Sir Robert Donald 102:Guglielmo Marconi 2198: 2123: 2122: 2113: 2112: 2103: 2102: 2093: 2092: 2091: 1964:Notable networks 1954:Wireless network 1894:Cellular network 1886:Types of network 1861:Computer network 1748:Network topology 1662:Thomas A. Watson 1517:Oliver Heaviside 1502:Philo Farnsworth 1477:Daniel Davis Jr. 1452:Charles Bourseul 1412:John Logie Baird 1121:Data compression 1116:Computer network 1068: 1061: 1054: 1045: 1012: 999: 993: 987: 981: 975: 966: 960: 949: 943: 937: 931: 922: 916: 910: 904: 898: 892: 886: 880: 871: 865: 859: 854: 845: 839: 833: 827: 821: 815: 809: 803: 797: 791: 785: 779: 773: 767: 761: 751: 745: 744: 742: 740: 725: 719: 713: 707: 701: 695: 689: 674: 668: 662: 656: 641: 640: 630: 624: 623: 603: 597: 591: 585: 582:Wireless Service 579: 573: 567: 543:History of radio 499:in South Africa) 381:Great Depression 332:cable telegraphy 245:Sir Henry Norman 226:House of Commons 216:Post World War I 163:select committee 120:, long distance 95:alternative view 2206: 2205: 2201: 2200: 2199: 2197: 2196: 2195: 2136: 2135: 2134: 2129: 2089: 2087: 2079: 2021: 1958: 1880: 1844: 1801: 1750: 1742: 1683: 1676: 1582:Robert Metcalfe 1437:Tim Berners-Lee 1385: 1205:Information Age 1077: 1072: 1038:Wayback Machine 1021: 1016: 1015: 1009:Wayback Machine 1000: 996: 988: 984: 976: 969: 961: 952: 944: 940: 932: 925: 917: 913: 905: 901: 893: 889: 881: 874: 866: 862: 855: 848: 842:Empire Wireless 840: 836: 828: 824: 816: 812: 804: 800: 792: 788: 780: 776: 768: 764: 752: 748: 738: 736: 727: 726: 722: 714: 710: 702: 698: 690: 677: 669: 665: 657: 644: 632: 631: 627: 620: 605: 604: 600: 592: 588: 580: 576: 570:Empire Wireless 568: 561: 556: 534: 509:curtain antenna 481:North Petherton 410: 387:and affordable 377: 324: 218: 210:pounds sterling 202:insider trading 194:Marconi scandal 144:Marconi Company 140:Colonial Office 122:radiotelegraphy 83: 43:radiotelegraphy 17: 12: 11: 5: 2204: 2202: 2194: 2193: 2188: 2186:British Empire 2183: 2178: 2173: 2168: 2163: 2158: 2153: 2148: 2138: 2137: 2131: 2130: 2128: 2127: 2117: 2107: 2097: 2084: 2081: 2080: 2078: 2077: 2070: 2065: 2060: 2055: 2050: 2049: 2048: 2043: 2035: 2029: 2027: 2023: 2022: 2020: 2019: 2014: 2009: 2004: 1999: 1994: 1989: 1984: 1979: 1974: 1968: 1966: 1960: 1959: 1957: 1956: 1951: 1946: 1941: 1936: 1931: 1926: 1921: 1916: 1911: 1906: 1901: 1896: 1890: 1888: 1882: 1881: 1879: 1878: 1873: 1868: 1863: 1858: 1852: 1850: 1846: 1845: 1843: 1842: 1837: 1832: 1827: 1822: 1817: 1815:Space-division 1811: 1809: 1803: 1802: 1800: 1799: 1794: 1793: 1792: 1787: 1777: 1776: 1775: 1765: 1760: 1754: 1752: 1744: 1743: 1741: 1740: 1739: 1738: 1728: 1727: 1726: 1716: 1711: 1706: 1705: 1704: 1694: 1688: 1686: 1678: 1677: 1675: 1674: 1669: 1664: 1659: 1654: 1652:Camille Tissot 1649: 1644: 1639: 1634: 1629: 1627:Claude Shannon 1624: 1619: 1617:Tivadar Puskás 1614: 1609: 1604: 1599: 1594: 1589: 1587:Antonio Meucci 1584: 1579: 1574: 1569: 1564: 1559: 1557:Charles K. Kao 1554: 1549: 1544: 1539: 1534: 1532:Harold Hopkins 1529: 1524: 1519: 1514: 1509: 1504: 1499: 1494: 1489: 1484: 1479: 1474: 1469: 1464: 1459: 1454: 1449: 1444: 1439: 1434: 1432:Emile Berliner 1429: 1424: 1419: 1414: 1409: 1404: 1399: 1393: 1391: 1387: 1386: 1384: 1383: 1378: 1373: 1371:Videotelephony 1368: 1363: 1362: 1361: 1356: 1346: 1339: 1334: 1328: 1323: 1318: 1313: 1308: 1307: 1306: 1301: 1296: 1286: 1285: 1284: 1274: 1269: 1267:Radiotelephone 1264: 1259: 1254: 1249: 1244: 1239: 1234: 1233: 1232: 1222: 1217: 1212: 1207: 1202: 1197: 1192: 1187: 1182: 1177: 1172: 1171: 1170: 1165: 1160: 1155: 1153:Internet video 1145: 1144: 1143: 1138: 1133: 1128: 1118: 1113: 1108: 1103: 1098: 1093: 1087: 1085: 1079: 1078: 1073: 1071: 1070: 1063: 1056: 1048: 1042: 1041: 1028: 1020: 1019:External links 1017: 1014: 1013: 994: 982: 967: 950: 938: 923: 911: 899: 887: 872: 860: 846: 834: 822: 810: 798: 794:Wireless Links 786: 782:Wireless Chain 774: 762: 746: 720: 716:Wireless Chain 708: 696: 675: 663: 642: 625: 618: 598: 586: 574: 558: 557: 555: 552: 551: 550: 545: 540: 533: 530: 501: 500: 466: 457: 448: 409: 406: 376: 373: 323: 320: 217: 214: 82: 81:Initial scheme 79: 51:British Empire 27:British Empire 15: 13: 10: 9: 6: 4: 3: 2: 2203: 2192: 2189: 2187: 2184: 2182: 2179: 2177: 2174: 2172: 2169: 2167: 2164: 2162: 2159: 2157: 2154: 2152: 2149: 2147: 2144: 2143: 2141: 2126: 2118: 2116: 2108: 2106: 2098: 2096: 2086: 2085: 2082: 2075: 2071: 2069: 2066: 2064: 2061: 2059: 2056: 2054: 2051: 2047: 2044: 2042: 2039: 2038: 2036: 2034: 2031: 2030: 2028: 2024: 2018: 2015: 2013: 2010: 2008: 2005: 2003: 2000: 1998: 1995: 1993: 1990: 1988: 1985: 1983: 1980: 1978: 1975: 1973: 1970: 1969: 1967: 1965: 1961: 1955: 1952: 1950: 1947: 1945: 1942: 1940: 1937: 1935: 1932: 1930: 1927: 1925: 1922: 1920: 1917: 1915: 1912: 1910: 1907: 1905: 1902: 1900: 1897: 1895: 1892: 1891: 1889: 1887: 1883: 1877: 1874: 1872: 1869: 1867: 1864: 1862: 1859: 1857: 1854: 1853: 1851: 1847: 1841: 1840:Code-division 1838: 1836: 1833: 1831: 1828: 1826: 1825:Time-division 1823: 1821: 1818: 1816: 1813: 1812: 1810: 1808: 1804: 1798: 1795: 1791: 1788: 1786: 1783: 1782: 1781: 1778: 1774: 1771: 1770: 1769: 1766: 1764: 1761: 1759: 1756: 1755: 1753: 1751:and switching 1749: 1745: 1737: 1734: 1733: 1732: 1729: 1725: 1722: 1721: 1720: 1717: 1715: 1712: 1710: 1707: 1703: 1702:optical fiber 1700: 1699: 1698: 1695: 1693: 1692:Coaxial cable 1690: 1689: 1687: 1685: 1679: 1673: 1670: 1668: 1665: 1663: 1660: 1658: 1655: 1653: 1650: 1648: 1645: 1643: 1640: 1638: 1635: 1633: 1630: 1628: 1625: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1607:Radia Perlman 1605: 1603: 1600: 1598: 1595: 1593: 1590: 1588: 1585: 1583: 1580: 1578: 1575: 1573: 1570: 1568: 1565: 1563: 1560: 1558: 1555: 1553: 1550: 1548: 1545: 1543: 1540: 1538: 1535: 1533: 1530: 1528: 1525: 1523: 1520: 1518: 1515: 1513: 1510: 1508: 1505: 1503: 1500: 1498: 1497:Lee de Forest 1495: 1493: 1492:Thomas Edison 1490: 1488: 1485: 1483: 1482:Donald Davies 1480: 1478: 1475: 1473: 1470: 1468: 1467:Claude Chappe 1465: 1463: 1460: 1458: 1455: 1453: 1450: 1448: 1445: 1443: 1440: 1438: 1435: 1433: 1430: 1428: 1425: 1423: 1420: 1418: 1415: 1413: 1410: 1408: 1405: 1403: 1400: 1398: 1395: 1394: 1392: 1388: 1382: 1379: 1377: 1374: 1372: 1369: 1367: 1364: 1360: 1357: 1355: 1352: 1351: 1350: 1347: 1345: 1344: 1340: 1338: 1335: 1332: 1329: 1327: 1324: 1322: 1319: 1317: 1314: 1312: 1311:Smoke signals 1309: 1305: 1302: 1300: 1297: 1295: 1292: 1291: 1290: 1289:Semiconductor 1287: 1283: 1280: 1279: 1278: 1275: 1273: 1270: 1268: 1265: 1263: 1260: 1258: 1255: 1253: 1250: 1248: 1245: 1243: 1240: 1238: 1235: 1231: 1228: 1227: 1226: 1223: 1221: 1218: 1216: 1213: 1211: 1208: 1206: 1203: 1201: 1198: 1196: 1193: 1191: 1188: 1186: 1183: 1181: 1178: 1176: 1173: 1169: 1166: 1164: 1161: 1159: 1156: 1154: 1151: 1150: 1149: 1148:Digital media 1146: 1142: 1139: 1137: 1134: 1132: 1129: 1127: 1124: 1123: 1122: 1119: 1117: 1114: 1112: 1109: 1107: 1104: 1102: 1099: 1097: 1094: 1092: 1089: 1088: 1086: 1084: 1080: 1076: 1069: 1064: 1062: 1057: 1055: 1050: 1049: 1046: 1039: 1035: 1032: 1029: 1026: 1023: 1022: 1018: 1010: 1006: 1003: 998: 995: 991: 986: 983: 979: 978:Beam Wireless 974: 972: 968: 964: 959: 957: 955: 951: 947: 942: 939: 935: 930: 928: 924: 920: 915: 912: 908: 903: 900: 896: 891: 888: 884: 883:Beam Services 879: 877: 873: 869: 864: 861: 857: 853: 851: 847: 843: 838: 835: 831: 826: 823: 819: 814: 811: 807: 802: 799: 795: 790: 787: 783: 778: 775: 771: 766: 763: 759: 755: 750: 747: 734: 730: 724: 721: 717: 712: 709: 705: 700: 697: 693: 688: 686: 684: 682: 680: 676: 672: 667: 664: 660: 655: 653: 651: 649: 647: 643: 638: 637: 629: 626: 621: 615: 611: 610: 602: 599: 595: 594:Beam Wireless 590: 587: 583: 578: 575: 571: 566: 564: 560: 553: 549: 546: 544: 541: 539: 536: 535: 531: 529: 527: 523: 519: 517: 512: 510: 506: 505:lattice masts 498: 494: 490: 486: 485:Drummondville 482: 478: 474: 470: 467: 465: 461: 458: 456: 452: 449: 446: 442: 438: 434: 430: 426: 423: 422: 421: 414: 408:Beam stations 407: 405: 402: 398: 394: 390: 386: 382: 374: 372: 370: 366: 362: 358: 353: 350: 346: 342: 338: 333: 328: 321: 319: 316: 312: 307: 305: 301: 297: 293: 289: 284: 282: 278: 274: 270: 266: 262: 258: 254: 250: 246: 242: 237: 235: 231: 227: 223: 215: 213: 211: 207: 203: 199: 195: 191: 187: 182: 180: 176: 172: 168: 164: 159: 154: 152: 147: 145: 141: 136: 134: 131: 127: 123: 119: 115: 111: 107: 103: 96: 92: 87: 80: 78: 76: 72: 68: 64: 60: 56: 52: 48: 44: 40: 32: 28: 23: 19: 1807:Multiplexing 1682:Transmission 1647:Nikola Tesla 1637:Henry Sutton 1592:Samuel Morse 1522:Robert Hooke 1487:Amos Dolbear 1422:John Bardeen 1341: 1321:Telautograph 1225:Mobile phone 1180:Edholm's law 1163:social media 1096:Broadcasting 997: 985: 941: 914: 902: 890: 863: 837: 825: 813: 801: 789: 777: 765: 757: 749: 737:. Retrieved 733:Evening Post 732: 723: 711: 699: 666: 635: 628: 608: 601: 589: 577: 520: 513: 502: 419: 378: 354: 349:monopolistic 329: 325: 308: 292:Conservative 285: 257:South Africa 238: 219: 183: 179:South Africa 175:India Office 155: 148: 138:In 1910 the 137: 100: 67:great powers 38: 36: 18: 2007:NPL network 1719:Radio waves 1657:Alfred Vail 1567:Hedy Lamarr 1552:Dawon Kahng 1512:Elisha Gray 1472:Yogen Dalal 1397:Nasir Ahmed 1331:Teleprinter 1195:Heliographs 526:World War I 265:East Africa 206:World War I 118:World War I 63:World War I 2140:Categories 2053:Antarctica 2012:Toasternet 1934:Television 1417:Paul Baran 1349:Television 1333:(teletype) 1326:Telegraphy 1304:transistor 1282:Phryctoria 1252:Photophone 1230:Smartphone 1220:Mass media 619:019802178X 554:References 516:Chelmsford 493:Klipheuwel 489:Yamachiche 473:Bridgwater 460:Dorchester 171:War Office 130:Morse code 59:paper tape 55:Morse code 29:. Current 2037:Americas 2026:Locations 1997:Internet2 1758:Bandwidth 1462:Vint Cerf 1359:streaming 1337:Telephone 1277:Semaphore 1168:streaming 497:Milnerton 477:Huntworth 455:Brentwood 447:in India) 429:Winthorpe 304:shortwave 273:Hong Kong 269:Singapore 259:, Egypt, 253:Australia 222:Dominions 167:Admiralty 110:receivers 2105:Category 1992:Internet 1982:CYCLADES 1899:Ethernet 1849:Concepts 1773:terminal 1724:wireless 1547:Bob Kahn 1390:Pioneers 1215:Internet 1106:Cable TV 1034:Archived 1005:Archived 739:12 March 532:See also 464:Somerton 437:Rockbank 300:longwave 230:Leafield 186:ratified 158:monopoly 133:telegram 71:Leafield 2125:Commons 2115:Outline 2068:Oceania 1987:FidoNet 1972:ARPANET 1785:circuit 1354:digital 1083:History 522:Devizes 389:airmail 198:Liberal 2063:Europe 2033:Africa 2017:Usenet 1977:BITNET 1914:Mobile 1790:packet 1299:MOSFET 1294:device 1091:Beacon 616:  495:) and 483:(with 469:Bodmin 441:Khadki 433:Ballan 431:(with 425:Tetney 401:Labour 393:shares 339:, the 290:, the 271:, and 249:Canada 57:using 2046:South 2041:North 2002:JANET 1939:Telex 1929:Radio 1768:Nodes 1763:Links 1684:media 1262:Radio 1247:Pager 1175:Drums 1141:video 1136:image 1126:audio 451:Ongar 445:Daund 369:agent 261:India 75:Cairo 2058:Asia 1944:UUCP 1904:ISDN 741:2024 614:ISBN 487:and 471:and 462:and 453:and 443:and 435:and 427:and 108:and 37:The 1949:WAN 1919:NGN 1909:LAN 1190:Fax 1131:DCT 2142:: 970:^ 953:^ 926:^ 875:^ 849:^ 756:, 731:. 678:^ 645:^ 562:^ 528:. 518:. 343:, 267:, 263:, 255:, 251:, 236:. 173:, 169:, 2076:) 2072:( 1067:e 1060:t 1053:v 622:. 97:) 93:(

Index


British Empire
British overseas territories
radiotelegraphy
British government
British Empire
Morse code
paper tape
World War I
great powers
Leafield
Cairo

Hillmorton transmitting station
alternative view
Guglielmo Marconi
radio transmitters
receivers
Marconi Wireless Telegraph Company
World War I
radiotelegraphy
submarine telegraph cables
Morse code
telegram
Colonial Office
Marconi Company
submarine telegraph cables
monopoly
select committee
Admiralty

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