WIRELESS FOR ALL AND SUNDRY.

Star (Christchurch), Issue 18015, 27 November 1926, Page 27

WIRELESS FOR ALL AND SUNDRY.

NOTES ON PROGRAMMES BOTH NEAR AND FAR. BY “AERIAL.” Following are details of broadcast programmes to be put on the air during the week-end. 2YK, Wellington, and 4YA, Dunedin, i will not be operating this, evening. In the case of the Australian programme mentioned the time given, is New Zealand time. All the Australian stations usually heard in Christchurch will be on the air during the week-end. The Japanese stations, JOAK (375 metres, JIBK (385 metres) and JOCK (360 metres) may be heard between 10 and 12 p.m. daily, if conditions are good. American stations rated at from 500 watts, American'(which is equivalent to 1000 watts, British) likely to be heard should be -• picked up between 4.30 and 7 p.m. on Sunday, provided static does not drown signals. Details of programmes received or mentioned in advance over the air by stations referred to are as under. FOR TO-DAY. IYA, Auckland— 3 p.m. to 4.30 p.m., afternoon concert; 7.15 to -7.45 p.m., news and reports, etc.; 8 p.m. to 10 pm., chimes, pianoforte duet, Mr S. Hayden and partner: tenor solo, “ Thinking of You” (Shaw), Mr Ogden; A’iolin solo, Mr J. Miller; contralto solo, Miss L. Dumraet; violin solo, Mr / J. Miller; pianoforte duet, Mr S. Hayden and. partner; tenor solo, “My Dreams" (Tosti), Mr Ogden; violin solo, Mr J. Miller; cbntralto solo, Miss L. Duminet; relay of orchestral selections and dance music from St Benedict’s Hall. 3YA, Christchurch— 6.3o p.m. to 7 p.m., children’s seccion, 7.15 p.m. to 7.45 p.m., news and reports, etc.: 8 p.m. to 10 p.m., studio concert and relay of dance music. Programme:—Pianoforte solo, “ Seguidillas,” Miss Ida M’Laren; vocal solo, “Because,” Miss M. Rugg; violin solo, “A Paradise,” Miss G. Strong; vocal solo, “Evensong,” Mr W. 11. Worgan; pianoforte solo, “Romance” (Sibelius), Mr Claude James; vocal solos, “Love’s a Merchant” and “Any Time is Kissing Time,” Miss G. Barnard; violin solo, “ Never Forget Me ” (Poznanski), Miss G. Strong; pianoforte solo, “ Liebesstraume,” Miss Ina M’Laren; vqcul solo, Miss M. Rugg; vocal solo, “ Roman Rome,” Mr W. H. Worgan; pianoforte solo, “ Minuet,” Mr Claude Janies; vocal solos, “Good-bye Little Home ” and “ Corisande,” Miss G. Barnard : relay of dance programme from Dixieland cabaret by Marsden’s Band. 31>O t Melbourne —4.3o, 3LO dance orchestra, sporting results, health talk, news, close down at 6.30 p.m.; 7.15, children’s hour, Gwen Humffray, monologues, “Mary Gumleaf,” news: S.oO, Frederick Chapman, health talk, Dr Leach, Mr Zelman at Upwey; 9.30, a “Highbrow and Otherwise” concert; news; dance music until 1.10 a.in.

FOR SUNDAY. IYA, Auckland —6.4s p.m., relay of evening .service from St Mary’s Anglican -Cathedral, Rev Canon James; 5.30 to 9.30 p.ui-» relay of Auckland Municipal Band concert. 2YK, Wellington; —6.ss p.m., relay of evening service from the Terrace Congregational Church; preacher, Ihe Rev Ernest R. Weekes; musical director, Mr Den Barnes; organist, Air Alec Mill, L.A.8.; 5.15 p.m., studio concert. 3YA, Christchurch —6.3o pm., relay of evening service from St Barnabas Anglican Church,. Fendalton, Rev H. S. .beach; 8 p.m. to 9 p.m., organ, instrumental and vocal recital. 4YA, Dunedin— 6.3o p.m., relay of evening service from St Andrews Street Tabernacle, Church of Christ, Pastor W. D. More; 8 p.m., relay from St Kilda band rotunda (weather permitting) of band concert. 3DO, Melbourne— B.3o p.m., relay of evening service from St Paul’s Cathedral; 10.10 to 11.30 p.m., Malvern Tramways Band concert, assisted by Miss Elsie Davies and Mr Howlett J. Ross. Distortion. The receiving circuit proper—that is, the radio-frequency system, including detector—has littie to d.o with the .quality a. receiver is capable of. outputting. Ipventors and manufacturers often claim improved quality for their, radio-frequency and detecting system.;, which claim, like many you will run across in wireless, is meaningless Quality does not enter into direct consideration tintil the audio amplifier is reached. No radio-frequency system should distort. However, many can be made to distort if one tries hare, enough. On the other hand, any accidental distortion in a radio-frequency system is easily eliminated without heroics. Distortion in the radio-l're-qudftcy system occurs in comparatively few cases, and it 'is always due to the cutting off of .the side bands. This pheriopienoh, in practical reception, is met with only through excessive regeneration. Regeneration makes a circuit tune sharply. But an efficient receiver must tune with enough broadness to cover frequencies 5000 cycles on. each side of .the frequency carrier wave—which frequencies (side bands) represent the higher notes. Therefore if regeneration is carried to an excess the. higher frequencies—the high notes—will be lost and quality mi paired. The output of a receiver cutting off the high notes will be drummy—as if thp announcer wer. talking into a barrel. Distortion of this type, is easily remedied by cut ting down on. the regeneration control —if there is one—and by lowering th radio-frequency and detector filaments. ANSWERS TO INQUIRERS. ‘'Aerial” will be glad to answer any questions pertaining to wireless, or give advice on the subject. Correspondents should giye their names and addresses, not necessarily for publication-