Commercial Point to Point

The success of the long distance tests covinced by Marconi, Cables & Wireless, Siemens, Telefunken, Reichspost and RCA, that a point to point radio facsimile service was possible. Commercial service was started as follows,

Facsimile transmissions with a Korn System

Münich- Berlin Berliner Lokalzeitung 1910 Paris- Berlin Berliner Lokalzeitung 1910 Copenhagen- Berlin Berliner Lokalzeitung 1910 Stockholm- Berlin Berliner Lokalzeitung 1910 Berlin- Paris Illustration 1910 London- Paris Daily Mirror 1910 Paris- London Daily Mirror 1910 Manchester- London Daily Mirror 1910 Berlin- Copenhagen Politiken 1910 Copenhagen- Stockholm Dagens Nyheter 1910 Washington- New York Clliers Weekly 1910 London Police 1908

Other facsimile systems

New York - London	May	1,	1926
New York - Berlin	April	18,	1932
New York - Buenos Aires	August	8,	1932
New York - San Francisco	May	15,	1929
London - Australia	October	16,	1934
London - Buenos Aires	January	1,	1937
Berlin - Buenos Aires	June	9,	1930

 

The dot transmission method described by Ranger (^{I.R.E. Proc., Vol. 14, No. 2, April, 1926, R. H. Ranger.}). in 1926, or the improved method reported by Callahan, Shore and Whitaker (^{I.R.E. Proc., Vol, 23, No. 12, December, 1935, J.L. Callahan. Henry Shore, J. N. Whiteaker}) in 1935, has been employed over the circuits listed above up to the sixties or seventies. A general description of the apparatus developed by the associated companies and other interesting information pertinent to this subject is covered by the following articles;

Telephony (Telephony, Vol. 90, p. 19, April 17th, 1926)

Telg. & Tel. Age (Telg. & Tel. Age, p. 199, May 1st, 1926 and Teleg. & Tel. Age, No. 22, pp. 465-466. October 16th, 1929)

Elec. Rev. London (Elec. Rev., London, Vol. 98, pp. 820-822, June 4)

Wireless World (Wireless World, Vol. 24, pp. 192-195, February 20th, 1929)

Ranger (I.R.E. Proc., Vol. 17, No. 9, pp. 1564-1575, September, 1929, R. H. Ranger)

QST Francais (QST Francais, Vol. 11, pp. 13-20, July, 1930)

E.N.T. (E.N.T. Vol. 9, pp. 49-56, February, 1932, F. Schroeter)

Eastman & Hatch (Marconi Rev., No. 47, pp. 1-12, March-April, 1934, J. W. Eastman and J. F. Hatch)

Noizeux (RevistaTelegrafica, Vol. 25, pp. 728-730, September, 1936, P. J. Noizeux)

• (C) Marius Rensen
   

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