WIRELESS TELEPHONY

Evening Star, Issue 17327, 15 April 1920, Page 8

WIRELESS TELEPHONY

FOR USE BY AIRMEN Captain Whatley, R.A.F.. in a special Daily Mail machine, flow on March 86 from Cncklewood over Chelmsford to test the new Marconi invention of the wireless telephone for use between aeronlanc and aeroplane or between aeroplane and aerodrome. Captain Whateley describes the experience as a great success. The wind was so bad,” lie says, “ that experts were dubious about the ascent over Ln.ioia. I telephoned down, asking Chelmstord where I was. Immediately I received an accurate reply. I first heard a scratching so,md, like a bad gramaphone needle and then, with extraordinary clarity, a voice, as if the speaker was just behind ’me said; Hullo, Handley Page; Chelmsford speaking You re now two miles east of Lisiiops Stortford. Is it very windy?’ I immediately telephoned in reply* ’Hullo Chelmsford: ‘Daily Mail’ speaking. It is very windy, but your messages are quite clear.’ ” Captain Whateley thus ascertained his position five times. The invention has a working rango of from 200 to 300 miles with a normal low-power station. In future it will be possible to telephone to and from tne air through any exchango.