. Practical wireless telegraphy; a complete text book for students of radio communication . nals is obtained, which, in fact, canfrequently be heard with the receiverslying on the table with the transmittingstation 3,000 miles distant. Marconi trans-oceanic receiving stationsare also completely equipped with dictaphonereceivers which are arranged so that immediately one wax record is indented withsignals, a second dictaphone receiver is automatically connected in the circuit, and so use of these records permits trafiic to be dispatched across the ocean at speeds up to75 words per minute
. Practical wireless telegraphy; a complete text book for students of radio communication . nals is obtained, which, in fact, canfrequently be heard with the receiverslying on the table with the transmittingstation 3,000 miles distant. Marconi trans-oceanic receiving stationsare also completely equipped with dictaphonereceivers which are arranged so that immediately one wax record is indented withsignals, a second dictaphone receiver is automatically connected in the circuit, and so use of these records permits trafiic to be dispatched across the ocean at speeds up to75 words per minute, which is afterwards transcribed on the type,writer by the receivingoperator at speeds varying from 30 to 40 words per minute. Obviously this system willpermit a greater amount of traffic to be handled between two stations and it will, therefore,be employed when atmospheric electricity is not too severe. 239. Condensed List of High Power Stations.—Some of the long distancetransmitting stations of the Marconi Company, their locations, systems andpower are shown in the following table:. Fig. 322—Bank of High Voltage Transformersat Kahuku. LocationCarnarvon, WalesClifden. IrelandGlace Bay, Nova ScotiaStavanger, NorwayMarion, Mass. New Brunswick,New Jersey Bolinas,California Kahuku, Hawaii SystemContinuous and discontinuouswaves Discontinuous wavesDiscontinuous waves Continuous waves Continuous waves Continuous and discontinuous wavesDiscontinuous wavesDiscontinuous wavesDiscontinuous waves Power Wave Lengthin Meters 100-300 6,000 to 10,000 7S-1S0 5,500 7S-1S0 8,000 ISO ? ISO ? 1S0-3OO 8,000 to 15,000 300 6,000 to 10,0006,000 to 12,0006,000 to 12,000 MARCONI TRANSOCEANIC RADIO TRANSOCEANIC STATIONS. LocationSayville,Long Island Tuckerton,New Jersey System Power Joly-Arco (continuous waves) 100 Goldschmidt High Frequency ^^°,^-^; |fwAlternator (continuous waves) ^*° ^ ^- ^• 307 Wave Length9,400 meters
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
