WIRELESS NEWS

Press, Volume LXVII, Issue 20180, 7 March 1931, Page 4

WIRELESS NEWS

, <By "MAX.'') The ' annual meeting of the Radio Society of Ghristchurch was held last Thursday week, and there was an excellent attendance of members. The raport showed that the activities of the Society had been well maintained. There were'seVen resignations as against, twenty-one new members. Lectures and demonstrations were given at nearly every meeting, the number of members contributing in this direction being above the average. * * The balance-sheet showed a healthy condition, though the expenditure for the year was slightly above the receipts. A.s the Society rents a room continuously, this item is the greatest on the debit side. The buffet, which is always well patronised, and aims at working just above cost, gave a profit of several pounds. The radio library is considered to be perhaps the best in Naw Zealand, containing over fifty books as well as journals of several of the leading wireless publishers. ♦ & Several of the members were successful in passing tfce examination for an amateur ticket and one member passed his commercial examination. This is Mr Gerity, who has just received an ■ appointment to the Wahine and commenced his new duties last week. Meetings throughput the past year have been well attended and especially of late, the new classes for intending amateurs being largely responsible. ./;■"' * * . . The new officers are:—President, Mr P. O. Smith: vice-presideritß, Messrs F. A. O'Connell and 0. Parton; , hon. secretary, Mr H. P. V. Brown (re-elect-ed); hon, treasurer, Mr Stanton; auditor, Mr Blewett. Lectures and instructions committees, Technical Committee, buffet and library committees were also elected. The return of Mr 0. R. Russell will greatly strengthen the Society, as Mr Russell has an extensive knowledge of ■ radio, covering both the practical and theoretical, as well as the knack of holding the attention of his hearers by his excellent explanations. ♦ * Several social evenings were Ueld during 1930, and two presentations were given, and one evening. a miniature golf competition'made a pleasant change from the ordinary routine. There are many amateur transmitters amongst the members, and they report a very Baecessful season also. ' ». * One of the American runners at present in New Zealand, Mr Kiser, is an amateur transmitter belonging to the 7th U.S.A. district, call sign W7BX, so one of our local enthusiasts reports. There are some 19,000 amateurs in the Unite# States, over 50 per cent.' of the total for .the world. This, large number, of American hams is mainly due to the facilities given to amateurs, the restrictions. being far easier in that 'country; - The;examination allows for 'both' average"as well as for first-class ■operators and the standards required Zfafaviisgeiboththevbeginner'. and the ambitious men. TThe headquarters is well managed, and ; ' very high reputation through|<nkt> worlds' . - u f * f/'i ' , # : A-system of reaction control for use with any type of regenerative receiver, and which is very popular at present, called differential reaction. It is especially useful for. short-wave reception V?Here it is desired to have perfectly smooth control of regeneration. 'With this method the ordinary condenser for capacity is replaced by one. which has two sets of stator plates and one set of rotor plates. The opiate lead of the,' detector' valve takds two paths; one-through the radio frequency choke to the transformer and high tension plus, and the other to the tickler-.eoil. Across the tickler is the • differentialeondenser, the. staters being ' Trired to Jhe.tifo ends of coil Whilst the rotor plates go to the-*'A'* battery positive lead, Rotating the - moving plates, .the effect of either "shunting theMiigh frequency eurrents morp or less through -the reaction con* -denser back to~ the filament or via the plate coil. The latter' action increases the. regeneration, and it is considered that this'system gives* exceptionally smooth! control.' Summed up, the high frequency currents have to travel a aeries eiireujt '(reaction eoil 'and differentia) condenser) or, direct through 1 ' the condenser to the filament side,' ; «ny, intermediate position "of the rotor plates'dividing the currents info jt^o>?#ths. Thereare now some .thirty 'Atexican broadcasting stations which are causing interference, to botfr American and Canadian transmissions..' The two latter, have certain frequencies allotted to ep,ch,, separately, as well as others/ used/ jointly, by agreement. Mexico has not f entered into any agreement,, but th?, interference is now so bad that it is more than'likely 'that a . conference, will "have ,to be held' "to tirys,, to settle the"" difficulty. shares in the Already narrow broadcast band,.and oacnada will- also press, for a larger slice,' Cuba, too, has to bp considered, but it is most unlikely that the United States will, take< any / action, which is likely to restrict tbe frequency channels used. by. her-, stations. ' w 14r # v j i?he National Broadcasting Company of America has sponsored programmes from some foyo hundred American industries, and the - combination expects -to' spend no less than twelVe million 'dollarS'for talent during the year. Efforts will be, .concentrated upon givinga greater variety t>£ talent, and -the, popular fast-moving .drami' and <®medy,.will be specially - C- 1 , /-)' "' Bobby Jpnes, the'champion golfer, has been giving a series of talks, 1 some of ihem being put over the aif.;^iM(<*ta» • tion, WSB.' These -have no doubt been jttost popular, as thegreat golfiing player ,'fiks ' many 'tumorous as well, as instructive items' to give as a result of his many experiences. -He was due to give' sisor'eight talks from Hdllywood in February also/ t < • * y 11 1 , ■£ ' Now tfiat the summer is over it- is a -wise plan to overhaul t the aerial and earth systems.' It i£ a job which should <be l aebn to at least once* a year. A gOod plan is to continence by lowering the antenna,' examining the halyard, carefully, for' weak or dfrayed/placeß. If any exist the question of new ones should serious consideration.. Make sure' that all connexions to the aerial are secure and then go oyer the Now rtan' over, the aerial itself, and' if there are any soldered .joints inake sure ihey are intact.See ttfc%t,~ whenf .re-erected, 4s Mear the . building .and !"A, b«(UWesjtecently located by; a liltener frueanse* ;J>y. the flowtf lead ruttbing npainat/a, gutter on' the botfSep signals roapjMMtring altogether at tidies. The arraster flboyld be cxamined., PfM acrisod, type, it ought to require ttf 'attention, cobwebs are battle

Notes From Far and Near

BROADCASTING. TO-DAY'S PROGRAMMES. 3YA, OHBIBTOHUK.GH (980 Kilocycles.) :. 2.30 p.m.: Relay from Addington Show Grounds of Boy Scout' ana Girl Guide Bally in -welcome to *Lord and Lady Baden-Powell. During; the afternoon a resume of events''in the Canterbury Amateur Athletic Association's meeting will be broadcast-from Lan-caster-Park, 6,0: Children's hour, condusted by Aunt. Pat, Sunny Jim and Jack Frost. 6.0." Dinner music session.- 7.0: News session. 7.30: Sports results. 8.0: Chimes. Overture—Band of H.M. Grenadier Guards, "New. Sullivan Selection" (arr; Godfrey). 8.8: Cabaret songs ,at> the piano-r-The Pair, (a) "If I' had; a Girl Like You"' (McDermott); (b) -"In a Little Place Called Heaven." 8.14: Banjolin—Mr Stau. Birch, (a) "Traumerei" . (Schumann—arr. Beck) ; (b) "Don't Sing Aloha" (arr. Beck). 8.19: Bags-baritone—Mr Sydney Hood, "Five and Twenty Saitormen." 8.23: Instrumental—Four Pianos,- (a) "Faust Waltz"; (b) "Dreams of Hawaii." 8.31: Humour in song and story—Mr'Jock Lockhart, ' introducing (a) "Oh, ; Maritana" (Long); (b) "It's Grand to be Alive" (Pother). 8.38: Christcliurcli . Broadcasting ■ Trio, (a) "Farewell, My Love" (from "Frasquita") (Lehar); (b) "Melodies Mignon" (Sinding). 8.45: Soprano—Mrs O. E. McDowell, "Love, Your Spell is Everywhere." 8.49: Violin—Miss Irene Morris, (a) "Ohanson Gracieuse" k (Barns); (b) "Hornpipe". (MUtowsfci). 8.05: Tenor— Mr Douglas Suckling, (a) "The Little Irish Girl" (Lohr); (b) "Blarney" r (Ambrose). 9.1: Weather forecast and station . notices. 9.3: instrumental—Broadcasting Trio, (a) "Anitra's Tance'' (Grieg); (b) "Vivace" (Godard). 9.10: Qabaret songs at tho piano—-The Joyous Pair, ((a) "When the Organ Played at Twilight" (Campbell); (b) - ."Cooking Breakfast for the One/1 Love" (Rose), 9.16: Saxophone—Chester H. Hazlett, (a) "To a Wild Bose" . (Mc-, Dowell); (b) "Valse .Inspiration" . (Has- - lett). ' 9.22: Bass-baritone—i-Mt 1 Sydney Hood, (a) "Roadways" (Densmore) ; {b) "Song of the Clock" (Burchall)l 9:96: Banjolin —Mr Stan Birch, (a), ''Melodie d'Amour" (Engelmann); (b) '''Paradise. Alley'' (Carleton). 9.82: Humour in song and storyMr Jock Lockhart, introducing.-."You'll Always Meet a Scotchman" (Wood). 9.37; Broadcasting trio, (a) - "The. Red Sarafan"(Vermalofl); (b) ."Polonaise" :(ohopin). 9.48: Soprano—Mrs C. K. McDowall, •(») "Let the Great Big /World Keep Turning" (Ayer): (b) "Marcheta" (Schertzinger). 9.50: Male voice quartet—Del Pelo and Quartet, "A Franceses" (Costa). '9.58: Organ—Marsh McCurdy. "Are Sou Happy I" (Ager and Yellen). 9.58: Tenor—Mr Douglas Suckling, (a), "The 'Sandwich Man" (Willeby); - (b) ''Life is a Caravan'.* (Del Riego). 10.1: Dance music. 3ZC, CHRISTCHURCH. (250 Metres.) , t 10 a.m.: Women's session—"Ohanson Bohemienne," Salon Orchestra. '10.5! Tested . recipes. 10.25 a.m.: "La Cinquantlne." i Maurice Marechal ('cello); "The Bandolero," Arthur Middleton (bass): "I Know That You Know," two pianos; "Fantasia from Norma," flute and; clarinet duet; "Merry Widow Waltz.''' Frieda Hempel (soprano); "The Invincible Eagle M;arch," New York, Military Band; "Comin' Thro* the Rye.V Betsey Lane Shepherd (Boprano);"By.-the, Fireside," Salon Orchestra; "Chant Busse, Maurice Marechal ('cello); "Love Here J* My Heart," Reed Millar (tenot): "ByoBye, Bonnie," two' piano*; ■ "What Mystery, Why Thus Control t" cornet and trombone duet; "The Angel's /Serenade," -IVieditv Hempel (soprano) { "Here, There, and Every: where," march. New York Military Band, J 1.30 a.m.: Close down. 2TA, WELLINGTON (720 Kilocycles.) -j 8 p.m. Chimes. Selected' gramophone re-., cordings. 8.80 and 4.80: Sporting results ] to hand. 5.0: Children's session, conducted by Aunt Molly. 6.0: Dinner musi'o session.7.0} New# session, market reports and sports ] results. -8.0: Chimes, ' Overture —Salon Orchestra (Conductor, Mr M.' T. Dixon), "Stradella" , (Flotow). 8.9: Popular songs at the piano—Miss Muriel Johns; (a) "Strolling Through.the (O'Hagan): (b) "The- Swing long" (o'Hagan), Bas: Trio—White -Coon 'Novelty Trio, 1 (a) "Musical Ride" (Rodger); <b) "Double Eagle.* (Wagner). 8.21: Humour—Mr Len Ashton, "The Carbolic Love. Song" (Le ri ,OJerQ). j 8.36: Selection—Salon Orohestra,' J 'Lilac Time" (Sohubert-Olutsanx). 8.84; TenorMr William Charles, (a) "Drink to Me Only" (Old English); (b) "Believe Me If AH Those Endearing Young Charms" (Trad'!.). 8.40: Dulcimer solo—Mr T. 0. Rodger, "Home, Sweet Home" (with variations) (Rodger). 8.46: Male Quartet, (a) "My Bonnie"; (b) "Down in Demerar* (c) Villikins and His Dinah"; (4> g°me Folks Like to Sigh" (Trad'l.). 8.51: Suite —Salon .Orchestra, . V''Oriental'! (Pojy). 9.0: We*th« report and station Selection—Jack Hylton and _HW Orchestra, with vocal rafrain, 1,4 M0t6 Old Sonci* - Trio—White Coons. Novelty ,' Tyio. (a) "Darkies Whirl" (Claperton); .(b) ■ 'Medtoy Foxtrot" (Rodger). 0.17.: PtfpuW songs at the piano—Mis* Muriel Johns.(a) Still Belong to- Toa" < (Brown); (b> Hero Comes the Sun" <Woods).' 9.28: Aeeordeon —Galla Rlni, (a) "Sicily of Mine" (Tarantola); (b) "Polka Brijlante" (Quattrooiocche). 9.49: Humour—Mr Len Ashton, VI Want to Go to Bed." 9.86: E*aet violin and 'cello-r-Messrs W. Haydock and Stanley Chapman, "Serenade (voight). Bell solo—Mr L. W. Probert, the Meadow" (Ketelbey). 9T«nor— 1 Mr William Charles, "Passing By" (£urcoll.) 9.47: Guitar—Kfcnes Hawaiian!, ' Drowsy Waters'* (Kilan). O.BOi-Salon. Orclwstra, "Latest Danes Novelties. 10.0: Dance I progrsmme. - ri> \ *' SUNDAY. SYA, CHBMTOHVBCH I (980 Kilocycles.) <■' . J 8 p.m.: Relay of special*service from Ohrlstohurch Anglican Cathedral oh the otfofcsion; of tho handing over by Lord Baden-Powell of the dedicated flag, a white ensign; from the Cenotaph, Whitehall,- London, .and,' pre- . sented by the' British Boy Scouts to tho New Zealand Boy' Scouts.' Lord BadenPowell and His Worship the Mayor (Rev. J, k Archer) W read tho lessons. 5.30: I-Children's song service by children of- Aiigtican Sunday' Schools. 6,13: Chimes pom the ! studio. 6.80: Musicsl J recordings. j" 7.0: Relay of evening service, from Holy Trinity- , Church/ / Avonside (pwacher, Rev. 0. Fits'igerald: Organist and Oboirmaster, Mr Arthur Lilly, A.R.0.0.). 8.15 (appro*.): Relay of open-air band programme from a city bahd 1 rotunda by the WoOlston Band (Conductor, , 8., J, Bstall). March—Band, ' "Washington Greys" , (Trafulla); overture, "Raymond." 8.28: Tenor—Mr David Mc.Gil!, (a) "Heart i- of Gold" (Manney); (b) '"Land «f Long .Ago" (Bay). . 8.84 J- Trombone . trio— WoOlston Tno ;.and Band, "A Summer's Day," Medley—Band, "Famous Fragments" (arr. Hawkins), 8.44: Baritone— I'Mr E. A. Dowell, "Gipsy Love Soiig" from ".The Fortune-Teller" (Herbert) 7 8.'48: Overtures-Band, "Nabuoodo&osor" (Verdi). I Humorous variation —Band, ■ "Keel Bow',' I (Rimmer). 9.4: Weather forecast and station notices 6.8: " Foxtrot—Band, , " ' Appy i Land" (Salmon). 9.10,- Tenor—Mr David I ilcGill, (a) "If Sou Would Love Me'I (McDermid); (b) ''Roaes- ot Forgiveness" (D'Hardelot), 9.16: Selection— l -Band, "Annie Laurie" (Rimmer), 9.22: BAritone I —Mr E. A. Dowell, (a) "The World is ''Waiting for the Sunrise" (BeitsJ; (b) i "Hifto e Bine" (Te Rangi Pal), 9,28: I March—Band,'''Boulder City" (Ord Hume). I 9.82: From the Studio: Selection.—Berlin Stfcte Opera Orchestra, "Polonaise No. 2" I (Liszt). 9.40: Contralto —Marguerite Carlton, ' 'God, Shall Wipe Away All Tears." I 9.44: 'Cello—Felix Salmond, "Kol Nidrei" (Burch). 9.52: Choral' —Don Choir, i "First Psalm of David" (traditional). 9.56: Selection—Philadelphia Symphony OrchesI tra,-"Choral Prelude" (Bach). • 2YA, s WELLINGTON .' ' - (720 Kilocycles.) i 3> to 4.80: l&fternoon session ot selected gramophone recordings. 6.0: Children's song service, conducted by Uncle George,' assisted by the Children's Choir from the Roseqeath Presbyterian Church':' 7.0: Relay of.'evening

to give trouble sometimes. One of the commonest causes of failing 'reception ia an earth system which is not efficient. Joints- to water-pipes ate liable to cor* rode and clamps should be removed, if any exist; and both the pipe and inner, aides of y the clamps freshened/ However/ the wise man avoids this kind of joint, a soldered one'."being 'always the most reliable. In _ localities -where the soil is 4 sandy or dry, a number of pipes' at some distance >apart, and all , leading to a.common wire of at leaat'l4 gauge, is best and will often double signals. Old car radiators and especially discarded copper boilers make/ ,Bplsndid earths wJjjbh sunk into 1 the' soil some six feet. -Used by themselves or in connexion with several well separated jsipes. they- give the bsst service. - * V*