Over The AERIAL

Waikato Times, Volume 114, Issue 19100, 10 November 1933, Page 4

Over The AERIAL

BY RHEGH

THE COMING WEEK. , Sunday. — IYA: 3.30, Recorded talk; 7, service at St. David’s Presbyterian Church: 8.30, Municipal Band concert. 2YA: 3.30, talk; 7. service at Vivian Street Baptist Church; 8.15, studio concert. 3YA: 2.43, talk; 7, service at Trinity Congregational Churoh; 8.15, concert from 4YA, Dunedin. ■Monday. —1 YA; Talks, H, “AH About Pets’’; 3.30, home science talk; 7.30, agricultural talk; 8, studio concert. 2YA: talks, 11.30, "Health Hints, or First Aid”; 3, home science; 7.40, “Roads and Motoring”; 8, studio concert; 10, dance music. 3AA. 11, talk; 2.30, home science; 7.35, W.E.A. session; 8,8.8. C. programme, “Postman’s Knock"; 9, studio concert.

Tuesday. —l YA: 8, Studio concert; 10, dance music. 2YA: 7.40, talk, “For the Man on the Land”; 8, studio concert; 9,8.8. C. programme, “ Sir Christopher Wren.” 3YA: Talks, 11, "Fashions"; 7.33, “Books of the Month"; 8, studio concert; 9.30 dance music.

Wednesday. —lYA: Talks, 11, “Women's Interests,” 3.15, sports talk; 7.30, W.E.A. session; 8, studio concert; 9.30, dance music. 2YA: Talks, 11.30, "Hollywood Affairs"; 3.15, physical culture; 7.30, “ For the Home Gardener"; 8, studio concert; 9,8.8. C. programme, “ Jack Payne’s Radio Party." 3YA: 11, Talk; 7.35, Addington stock market reports; 8, studio concert; 10, dance music.

Thursday. —l YA: 11, talk, “ Care of the Feet”; 12.30, service from St. Matthew’s Church; 3.30, home science talk; 7.30, W.E.A. session; 8, relay of Bohemian Orchestra’s third concert. 2YA: 3, Home science talk; 7.30, W.E.A. session; 8, concert by Wellington Male Voice Choir; 8.30, studio concert. 3YA: 11, Talk; 2.30, home science talk; 8, studio concert.

Friday IYA: 7.30, Sports talk; 8, studio concert. 2YA: 11.30, Health talk; 8, recordings; 9.30, dance music. 3YA: 11, Talk, “Feeding the Family”; 7.35, W.E.A. session; 8, studio concert.

Saturday. — IYA: 7.30, Horticultural talk; 8, studio concert; 8.30, Wurlitzer organ recital relay; 9.30, radio drama, “We Await Your Verdict”; 10, sports summary; 10.10, dance music. 2YA: 2.30, Opening of National Confidence Carnival; 7.30, W.E.A. session; 8, Wellington Harmonic Society's concert; 9.30, radio drama, “We Await Your Verdict”; 10, sports summary; 10.10 dance music. 3YA: Studio concert; 9.30, radio drama, “We’- Await Your Verdict"; 10, sports summary; 10.10, dance music.

ADDRESSING THE WORLD. HITLER AND RADIO. When the German Chancellor, Herr Hitler, repeated his manifesto speech In English, Spanish and Portuguese, and relayed to almost all of the European and American stations, he played his trump card by addressing virtually the world, for there were within ken the representatives of all the great and important Powers, says a writer in the Sporting and Dramatic Review. When Hitler addressed the microphone linking up the German broadcasting system (of which, by the way, he is really dictator) he knew that his radio audience was one of millions. It is difficult for us in the Dominion to envisage the realities as well as the ■possibilities of radio dissemination m this regard, but it is now no longer a novelty for the British Broadcasting Company and the National or Columbia systems of the United States to exchange their programmes, and many famous men have been heard across the Atlantic by this means. In Britain the average listener hears the Atlantic Coast stations and it is, of course, a feat to hear the Pacific stations such as KFI, but those like WAAB, Boston (500 watts, 212 metres) are heard. From midnight on the enthusiast tunes in.

Reception In Britain. The call “Achtung fur die Wesdeutscheu Sender! Maine Damen und —’’ is a regular sound through hundreds of British loud speakers as Langenburg relays the Cologne station with 60,000 watts and with the dials literally crammed with transmitters, often actually endeavouring to jamb each other’s signals, the position is imaginable. When the 8.8. C. attained its tenth birthday in November last, one

of German’s tributes took the form of a special programme entitled “ llullo, London! . . . Here is Berlin" and relayed by the regional sttiaons. In America are many people with strong pro-German tendencies and their demands have to be satisfied, so that the speech of the Chancellor, who is stated to have a particularly appealing. “radio voice,” would not fall on deaf ears. The Reich has decided that “ German broadcasting is the servant of the German people . . . and serves as a connecting link between Germans abroad and at home; to cultivate the Reich’s idea is a duty of German broadcasting.” -

BEAT FREQUENCIES. : ASSOCIATION WI'TH WAVE LENGTH. If two similar notes are struck on a piano at the same time there is heard quite clearly a distinct beat in the sound produced; the sound appears to rise and fall alternately, and the rapidity, or frequency, of this rising and falling is the difference in frequency between the two notes which were struck. This can be proved by first sounding two notes which are very close together and then two notes which are farther apart on the keyboard; in the first case the beat will be very slow, but in the second case It is very much faster. This rising and falling of sound is known as the “beat,” and the speed at which it takes place is called the “beat frequency." Actually, this phenomenon occurs whenever two similar wave motions are superimposed one upon another, and if two oscillating currents at radio-frequency are mixed together then a beat frequency equal to the difference in frequency between these two oscillations is produced. It is by making use of this that It is possible to change the frequency and therefore the wave length of any transmitting station to any desired figure.