THE WIRELESS TELEPHONE
Tlie rapid development of the wireless telephone is one of the romances, of the war. In 1914 .the. wireless telephone. was still in the experimental stage, and was regarded as a kind of promising side-line to wireless telegraphy. But when the aeroplane, began to be largely used for reconaissance and for directing artillery fire, the demand for some more easy and flexible- mode of communication from the air to the landbecame urgent. British "inventors responded magnificently to the call, and the , crude apparatus. of 1914 became rapidly perfected' so._ that it could be i relied upon in speaking between aeroplanes and land stations up to 15 miles [and beyond. Owing to the necessities [of secrecy.very little was known to?.the i public about the improvements which j had been effected, but their extent may ! he? Judged by the generous tribute paid | by the director of an American electrical company which had been engaged jon the same field. He has stated that | British wireless telephones were better, iin range and reliability, than any which I had been produced elsewhere. In the ; development of commercial aviation wireless telephony, as well as wireless telegraphy, is likely to play an importj ant part, since the safety of a service depends upon maintaining contact with ! aerodromes and aeroplanes; but aviaj tion is far'from being the only field of I application. The wireless telephone jroay supplement the newspaper as a ! means of international communication. As was pointed out by a leading British man of science, Mr Campbell Swinton, F.R.S., a speech delivered in London may be heard simultaneously in Calcutta. Cairo, Paris, Petrograd, New York, and on vessels in. mid-ocean • and by the use of loud-speaking telephones large audiences may listen to the transmitted tones as If they were being addressed by the original speaker.
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THE WIRELESS TELEPHONE, Ashburton Guardian, Volume XXXIX, Issue 9593, 24 April 1919
THE WIRELESS TELEPHONE Ashburton Guardian, Volume XXXIX, Issue 9593, 24 April 1919
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