Published Resources Details

Journal Article

Author
Witt, Sidney Herbert
Title
Broadcasting of the Canberra ceremonies
In
Transactions of the Institution of Engineers, Australia
Imprint
vol. 8, 1927, pp. 347-362
ISBN/ISSN
0155-039X
Url
https://search.informit.org/doi/10.3316/informit.264788449974166
Abstract

On the 9th May, 1927, His Royal Highness the Duke of York officially opened the Commonwealth Parliament at Canberra amid ceremonies and pageantry befitting the occasion. In addition to its political significance, this event has interest to electrical engineers since, by use of recent developments in the art of electrical communication, the ceremonies were conveyed to an audience scattered over a considerable area of the Continent, and also at Canberra itself to an assemblage of people so large that many would not otherwise have been able to hear the words of the various speakers. The means of providing this extensive audition was a combination of public address systems, radio broadcasting stations and a specially connected network of long-distance trunk lines over which the voices of the speakers at Canberra were conveyed to six broadcasting stations in four capital cities of the Commonwealth. The route length of line comprising this network was 1,775 miles, and, as each trunk line has a pair of wires, the total length of wire employed was 3,550 miles. The broadcasting covered a reception area of approximately 1,000,000 square miles and the number of people who listened to the ceremonies has been estimated at 2,000,000. The voice of each speaker at Canberra controlled a total power of 30 kilowatts. A general view of the extent of the system is given by the map.

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