History of wireless telegraphy and broadcasting in Australia/Topical/Publications/Australasian Radio World/Issues/1944 03

P.03 - Contents Banner

The Australasian Radio World

Devoted entirely to Technical Radio

and incorporating

All-Wave All-World DX News

Vol. 8 - MARCH, 1944 - No. 10

P.03 - Publication Notes

Proprietor - A. G. HULL

Manager - Dudley L. Walter

Secretary - Miss E. M. Vincent

Short-wave Editor - L. J. Keast

For all correspondence: City Office - 243 Elizabeth St., Sydney - Phone MA2325

Office Hours - Week-days: 10 a.m. - 5 p.m., Saturdays: 10 a.m. - 12 noon

Editorial Office - 117 Reservoir Street, Sydney

Subscription Rates - 6 issues 5/3, 12 issues 10/6, 24 issues £1, Post free to any address

Service Departments - Back Numbers, 1/- ea., post free; Reply-by-mail Queries, 1/- each

Printed by Bridge Printery Pty. Ltd., 117 Reservoir Street, Sydney, N.S.W., for the proprietor of the "Australasian Radio World," 117 Reservoir St., Sydney (Footnote P.28)

P.03 - Contents

CONTENTS:

CONSTRUCTIONAL -

Design for Utility Circuit . . . . 6

The Three-Two Special . . . . 19

TECHNICAL -

What is the Future of Walkie-Talkie? . . . . 5

A Hundred Million Volts! . . . . 9

Radio in the Newspaper Headings . . . . 10

Electronics in Modern Music . . . . 11

Proper Methods of Using Valves . . . . 13

Technical Ideas from the Talkies . . . . 17

SHORTWAVE SECTION -

Shortwave Review . . . . 20

Shortwave Notes and Observations . . . . 21

New Stations . . . . 20

Loggings of the Month . . . . 23

THE SERVICE PAGES -

Answers . . . . 26

P.03 - Editorial Notes

Editorial

In a recent issue we had a paragraph about a second-hand chassis which was advertised for £500. In the same issue we had an advertisement from one of our readers who was prepared to pay up to £150 for a really good short-wave set. These items have brought to notice several enquiries as to what can be expected from even the best of sets when it comes to receiving overseas stations on the short-wave band and long-distance stations on the broadcast band. Quite frankly, one needs to be a keen enthusiast in order to appreciate even the best of communications receivers. When a signal is so weak that it is below the normal noise level of the locality, it is quite useless to amplify it excessively, as the noise is also amplified. Communications sets sometimes cover from 9 metres, right through to 600, whereas the average dual-waver only covers from 16 to 47 metres and the broadcast band. But to the ordinary listener this extra coverage of wave-lengths is not a great advantage, as practically all the short-wave broadcasts worth hearing are available between 13 and 50 metres. Yet to the right type of enthusiast the communications set is worth every penny of its cost. The low internal noise makes medium strength stations into good entertainment, the extra selectivity allows a greater number of stations to be heard. But it is probably the minor refinements which create the right atmosphere; the smoothness of controls, the convenience of phone jacks, of a beat frequency oscillator for signal finding as well as morse reception, and so on. After all there is little fundamental difference between a cab horse and a racing thoroughbred. They both have legs at their four corners! - A. G. HULL.