AERIALISMS

Sun (Auckland), Volume III, Issue 895, 12 February 1930, Page 8

AERIALISMS

The higher the voltage used, the more violent will be the oscillation. Valves vary a great deal, and it is only by experimenting that -the best voltage to be used can be discovered.

Though rumours have been in circulation that IYA is to go on the air at noon each day, and that the silent day is to be eliminated, I can say authoritatively that nothing definite has been, arranged.

The Australian Broadcasting Company took charge of station 4QG Brisbane last week. A greatly improved service is promised to listeners, with longer broadcasting hours. The schedule of transmitting hours now provides for a total of 71? i hours a week, as compared with 59 hours a week, which for some time has been the transmission period of 4QG. No advertising matter of any kind will be given, directly or Indirectly. InterState relays will be a feature of 4QG.

The American Academy of Arts is reported to be drawing up rules for a competition for wireless announcers, and a medal will be given to the best exponent of the language. The chairman of the committee stated that the idea was no-t merely to improve the diction of the announcers, hut to aid in raising the standard of spoken English throughout the United States. Members of the judging committee will decide on articulation, quality of tone, accent, and general cultural effect.

The success of a short-wave receiver depends to a large extent on how smoothly the detector valve can be made to regenerate. In general, use as little plate voltage as possible, start off with 225 volts and see how the set regenerates with the various coils. Conditions are just right when the set goes into oscillation at the high end of any pair of coils with the regeneration condenser all the way in. If regeneration takes xjlace only part way round the tuning dial, increase the detector to'4s volts.