WIRELESS TELEPHONE
BRITISH—AUSTRALIA link
‘' SINGING ’ ’ RECTIFICATION,
(Received 9 a.m.) LONDON, November 16,
The Australian Press Association gathers that if w'ireless telephony to Australia is introduced shortly it .will be limited to a speaking box in Sydney. It is explained that the present apparatus in use in Sydney allows an excess of waves’ current to run back along the outgoing circuit to England, creating, a .“singing’’ which prevents switching to subscribers’ telephones or connection with Melbourne.
To overcome this the British Telephone Department is 'building a duplicate. It is a valve switch gear which is operate'!' by the speaker’s voice and shuts out the return circuit, thus preventing singing. It will be at least four months before the apparatus is delivered at Sydney. It is understood the British controllers hesitated to agree to an imperfect service, but it is understood they yielded to Australia’s desires.
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Bibliographic details
Northern Advocate, 18 November 1929, Page 5
Word Count
144WIRELESS TELEPHONE Northern Advocate, 18 November 1929, Page 5
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