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TELEFONIA ALAMBRICA DE ALTA FRECUENCIA

JULY 1931   -  Volume: 6 -  Pages: 616-320

DOI:

[No data]

Authors:

IGNACIO Mª ECHAIDE

Disciplines:

  • Telecommunications technology (TELEFONO )

Downloads:   193

How to cite this paper:  
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Received Date :   1 July 1929


Key words:
[No data]
Article type:
ARTICULO DE INVESTIGACION / RESEARCH ARTICLE
Section:
VARIOUS

La telefonía de alta frecuencia permite aprovechar los circuitos ordinarios de transmisión telefónica para, por los mismos alambres, cursar simultáneamente otra conversación; y no sólo una más, sino varias (de ordinario tres) utilizando tres frecuencias altas distintas. De este modo un solo circuito trasmite simultáneamente cuatro conversaciones. Esta ventaja parece a primera vista fantástica, pero en la práctica no lo es tanto, porque si los circuitos telefónicos cuestan dinero, también cuesta dinero la instalación para alta frecuencia. Pero en líneas de algunos centenares de kilómetros trae cuenta la adopción del sistema. La Compañía Telefónica Nacional tiene establecido este sistema y en España las distancias no son considerables, máxime si se tiene en cuenta la posición central de la Capital.

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