DEVELOPMENTS IN WIRELESS TELEPHONY.

Western Star, 26 March 1920, Page 4

DEVELOPMENTS IN WIRELESS TELEPHONY.

AIDS FOR AVIATORS. “ What Lloyds is to those who go down to the sea in ships the wireless station of the Air Ministry is to those who Hy in the air,” says the Morning Post. “It is through the agency of wireless telegraphy and telephony —in the collection, publication and diffusion of information—that the interests of members of military and civil air services are protected. —Aerial Communication. — “ This question of aerial communication lends itself to really remarkable development on the side of commercial aviation. In the near future all the civil, as well as the military, aeroplanes will receive a wireless installation in order that passengers in flight may be able to send messages to relatives or business acquaintances. “ The wireless centre in Ivingsway (transferred from the Hotel Cecil to India House) is doing a useful work in disominating information' of particular interest to the Air Service. The great value of this wireless telegraph station to aviation lay primarily in the rapid collection and circulation of meteorological information, and many messages on matters concerning the R.A.F. and the business of civil aviation are handled. —Potentialities of Telephony. — | “ The installation comprises two continuous wave transmitters, one of which, possessing a wireless range of •ICO miles, is employed for transmitting all messages to places in the British Isles. The second, of higher power. with a useful range, of approximately 1500 miles, is employed for communication with Paris, Brussels, Norway, and Holland, and other distant places. There is also a> wireless telephony receiver, which is used for the interception of messages passed between the civil aviation stations at Hounslow and Lympue, on the London-Paris-Brussels routes, and between aircraft in flight. The potentialities of wireless telephony are immense, and it is possible, by placing tho microphone at India. House in. the horn of a gramophone, to entertain a lone pilot flying 50 miles away with the latest music hall song. The Air Ministry’s station is' at present in its initial stage. It is hoped soon by the establishment of more stations to develop communication with machines which will largely overcome the difficulties of navigation and fog.”