"WIRELESS"
POULSEN SYSTEM OF TELEPHONY.
BOUGHT FOR THE GERMAN ARMY. Bl TELEGRAPH—PEESS ASSOCIATION—COrTEIGHT. Berlin, Decembor 20. Tho War Office has purchased tho right to uso Poulsen's wireless telephone, by which it will bo ablo to coniniunicato with places 250 miles away. At the beginning of tho year tho "Scientific American" stated that, by wireless telephony, communication could be maintained between ships 100 to 150 miles apart, and that before long much longer distances would bo successfully dealt with. Tho difficulty to contend with in lengthening tho rango of wireless telephony seems to be feebleness of the electric currents generally used In telephonic conversation, as compared with those that are capable of being used in telegraphing, either with or without wires. Wire, telephony, tho " American Review of Reviews" points out, is commercially practised up to distances of 1500 miles, and is capable of being extended, by sufficient expenditure of money on tho wires, to 2500 miles or even more. Wireless telephony has, therefore, to bo greatly oxtended in range, in order to beat tho record of wire telephony over land. But over water it is different. In submarine cable under the ocean the limit range of telephonic communication is about CO miles.
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https://paperspast.natlib.govt.nz/newspapers/DOM19071223.2.51
Bibliographic details
Dominion, Volume 1, Issue 76, 23 December 1907, Page 7
Word Count
201"WIRELESS" Dominion, Volume 1, Issue 76, 23 December 1907, Page 7
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