WIRELESS TELEPHONY.

Hokitika Guardian, 20 February 1922, Page 1

WIRELESS TELEPHONY.

INTERESTING EXPERIMENTS. DUNEDIN, Feb. 16. Professor Jack, of Otago University, and his assistans have resumed their series of experiments with wiieless telephony and continue to obtain results ol over increasing value and interest. Messages were sent out oil Saturday e\ening last ami work is being continued each evening this week. The most strik ing result reported from Saturday evening’s experiments is that the carrier wave was definitely picked up by an observer at a distance of 800 miles usinu only a. singel valve. Further word was received that both speech and music was heard in Auckland and also .n Gisborne. The speech was not very distinct .but nevertheless this marks a. definite advance, as speech bad not been received at all previously either m Auckland or in Gisborne. Hamilton reported that music transmitted on Saturday night was “lovely” and the best so faf received. At observer in Christchurch, using seven valves, heard the music at a distance of 100 feet from his receiver. On Wednesday evening Professor Jack tried an innovation in the form of several cornet solos, local reports were to the effect that tlie music came through exactly. To-morrow evening Professor Jack will he transmitting again from 9.30 to 10 o’clock and on Saturday evening he will send out from eight till ten o’clock. Listeners are asked to note specially that the, wave length will he changed on these two occasions to 1000' metres.