12.G90-MILE WIRELESS TELEPHONY.

Manawatu Herald, Volume XLI, Issue 1982, 27 May 1919, Page 4

12.G90-MILE WIRELESS TELEPHONY.

NEW ZEALAND TO LISTEN TO LONDON CONCERTS. Dr. Lee Dc Forest, the noted wireless telephone expert and inventor, has predicted that in the summer of 19.1,9 it Avill lie possible for the human Amice spoken into the transmitter of the radio-telephone to be heard 12,000 miles away, or nearly Imll'-Avay round (lie Avorld. The feat Avould extend the present wireless telephone distance 6,000 miles in one leap. “This advance in the progress of radio engineering (ho says) is assured through the experiments of Dr. Alcxandcrsun, of (he General Electric Company, who Ims been the Avorld pioneer in the construction of high frequency alternators and in generating alternating currents Avhicli can lie applied to anteime and radiated from Avircless signalling. His latest product is a current of approximately 15,000 metros wave length.” It Avas further explained by Dr. De Forrest that all this energy can be controlled so as to bo modulated in perfect conformity Avith speech waves, and be transmitted half-way round the, Avorld. Tie said also that the use of the auciion makes possible (he amplification of sound received to any desired degree, so as to be heard throughout a large auditorium. Music-lovers in New Zealand, for instance, Avill be able to hear concerts by artists in Noav York,-Paris, and London as plainly and distinctly as persons- attending the actual renditions.