BEAM WIRELESS

Manawatu Standard, Volume XLVII, Issue 220, 15 August 1927, Page 7

BEAM WIRELESS

AUSTRALIAN SYSTEM. UNSATISFACTORY RESULTS. INCIDENCE OF SUN SPOTS. (By Electric Telegraph.—Copyright.) LONDON, Aug. 13. The vagaries of the Australian beam wireless system continue to exercise the minds of those engaged in research work, who express the opinion that irregular and unexpected fading length to be applied remedially to out is due to the present year’s maximum incidence of sun spots. Beyond that, they admit that the thing is in its infancy, and that it would be unwise to prophesy what the next two years will bring forth. It is understood that South Africa is getting a seven hours’ daily service as a result of alternate wave lengths. There are similar expectations regarding India, but the Australian beam system is not yet fulfilling the British stipulation for seven hours daily at 100 words a minute, though' it is getting more than the stipulated number at a lower speed. It is at present hopeless to expect the alternate wave Australia, chiefly on account of the heavy cost attendant upon alterations to the intricate aerials and reflectors, which the contractors at present are not prepared to entertain. There is hope that the Indian experiments will be sufficiently successful to impel an alteration to the Australian system. There is already encouraging proof that two minor outside variants of the main carrier wave never fade simultaneously.

Meanwhile there is not the slightest hope of wireless telephony to Australia for at least twelve months. The plant has not yet been prepared and nothing has been achieved. As regards Canada to Australia, this will be the last route to be attempted because, owing to the disparity in time, telephony will have less commercial appeal than elsewhere.

It will be the end of the year before Iflie British Broadcasting Corporation experiments with a short wave for (Empire broadcasting, and there is yet much to bo done to imSrove overseas experiments.—A. and '.Z. cable.