RADIO PICTURES

Nelson Evening Mail, Volume LXIII, 3 August 1929, Page 7

RADIO PICTURES

TRANSMISSION BY AUSTRALIAN STATIONS START IN THREE MONTHS Transmission of photographs by radio front the Sydney Broadcasting Station, 2.F0, is expected to commence within three months, and will be followed by the Melbourne station, 3LO. Engineers at both stations are hot ready to commence operations,' and the managing director of Amalgamated Wireless (Australasia), Ltd., Mr Risk, states that transmission will he started as soon as business arrangements are complete. Any object that is capable.of being photographed can he transmitted and received under the Eultograpli system that has been installed. Ordinary events of the day, sections of newspapers, typewritten documents and business contracts can all he transmitted. Should the police desire to transmit a photograph or the fingerprints of a 1 wanted” person it can be put oil the air and transmitted throughout Australia within five or ten minutes.

No dark-room or developing apparatus is- required at the receiving end. The photograph, as printed by the receiving apparatus, is a. permanent photograph. At the studio there is attached to the transmitting apparatus the developed negative of a photograph. A powerful beam of light is focussed upon the photographic plate, the amount of light being regulated by the varying density of the negative. A photo-elec-tric ceil controls the signals transmitted. These in turn direct the stylus pen that prints the photograph on thc re-receiver. The synchronisation of the transmitter and receiver is arranged by a number of clutches on the receiver, which are operated by synchronising signals from thc transmitter.

Tile market price for receiving apparatus lias not been fixed fur Australia, but it is slated it will cost under £4O. Receiving apparatus is also available for a limited number of experimenters. The stocking of receiving apparatus will largely depend on the demand. In Britain, after a few months experimenting with tlic transmission of pictures by the Fultograph system, which is being adopted in Australia, it was found that a large 'number of listeners desired to participate.