THE COMING WEEK.

New Zealand Herald, Volume LXVIII, Issue 20986, 24 September 1931, Page 15

THE COMING WEEK.

Auckland programmes.

fcy OF AEOLIAN ORCHESTRA

The following arc features of the profrom IYA and IZR next week:— Sunday.-IVA: T.elay of portion of Loon organ recital evening service Bcresford Street- Congregational rturch; « la y of Ml,llici P al Band - IZR: p 'children's session; 9.45, church scr- *. 6.45 P-" 1 -' s church service; pV church service. .Monday.-IV A: Belay of Avondale -'jes. IZR: U-15 a.m.. "Tit Bits," by "Jlaorilander"; 7.5 p.m., "Swimming" ledu« b y ProfcSsor A » derso "- Tuesday.—lVA: "International" projgjme; lecture on "Women's Influence World" Peace,'by Mrs. M. B. Soljak. gg. 11,15 a.m., "Kitchencraft" talk by V,sMann; 7.20 p.m., Aero Club address; {!iJ dio recordings. Wednesday.—lV A : Belay of nud-day fommuuity singing/sea programme by the IYA Choir; orchestra and "Lee Fore Brace." i -< "Travel" talk In- Mrs. H. Dyson;/7-20 p.m., "Esperanto" lecture by Rev. T. B. Woolloxall. Thursday. —IYA: Belay of Aeolian Oithestra. 1ZB: 11.15 a.m.. "Feminine Interests," by "Kaiere"; 7.20 p.m., lecture on "Sun Spots," by Mr. F. B. Field; pperatic evening. Friday.—lYA : Programme by the Salon Orchestra and assisting artists. IZR: J1.15 a.m.. "Numerology," by "Lin/iette"; 7.50 p.m., community singing; jtudio programme. / Saturday.—lYA: Belay of Auckland Jlunicipal Band. 1ZB: 7.5 p.m., "Territorial" address by .Lieutenant-Colonel E. Puttick; talk on "Foreign Birds," by Jlr. G. B. Hutchinson; popular programme., < ' SYDNEY PROGRAMMES. ."TIN SOLDIER" ON WEDNESDAY. Features of the evening programmes from £FC and 2BL, Sydney, next week are as follows, the New Zealand times being given in each case:— Sunday.—2FO, ,10 p.m., Professional 3lusicians' Military Band. 2BL: 10, classical musical, programme. Monday.— 2FC: 9.,30, community singing. 2BL: 10.30, dramatic episode, "Raffles." Tuesday.—2FC: 9.30, radio dance night. 2BL: J8.50, "Rigolettc.'/ Wednesday.—2FC: 9.30, musical comedy, "Tin Soldier." —2FC: 9.40, Musical Association cf New South Wales. 2BL: 9.30, play, f'French Leave." Friday.—2FC: 9.30, concert programme. Saturday.—2FC: P. 30, special concert. 2BL: 10, boxing ifrom Sydney Stadium.

Signal KtrenjrHi. Station. (Maximum K-lOj. 2FC. Sy.ln.-y n Brisbane .. ■. .. 8 3AR, .Melbourne. . * b . 7 :M'- Newcastle .. , 4 <> Melbourne .. . ■ 6 rjockhiuiii-loii , .. ('• 'ZJi. 1101/arl r. S P'. A'lipla iclc . .. 1 Wf\ IVrll, 3

LENGTH OF AERIALS. MERITS OF SMALL ANTENNAE. RELATIONSHIP WITH FREQUENCY. It is very commonly believed that a luge outdoor aerial is better than a small and many people, particularly those new to radio, go to great trouble and much expense to set up a really lar?e and' elaborate one, states a writer in an overseas journal. It is obvious that in, one sense a large aerial is bound to pick up more power from the ether than a small" one, but what we have to consider is whether that power, when eo picked up, can be properly applied in the desired way. The power comes in in the form of }iigb-frequency waves, and therefore the relationship between the characteristics of the aerial and the frequency of the waves becomes extremely important. In view of this relationship, it is quite possible, and, in fact, it often happens, that a long aerial is actually less efficient than a short one for the particular wavelength which is being received. Apart fiom the question of sensitivity—which is not really so important nowadays, owing to the ease with which any lack of aerial sensitivity can be made up by means of high-frequency amplification—there is the much more important question of selectivity, and, in point of fact, when working on ordinary broadcast ■wave-lengths,, you will find that a standard 100 ft. aerial often requires drastic tutting down. Although you are so often advised to have a Hat top or roof to the aerial, this fat top may do more harm than good, are also commonly advised to have high aerials, and with this particular part f, i the popular advice T entirely agree—-hut-uot with that about having a flat top. This is,.because the signals which are received in the top of tlic aerial may Meruit of phase with llioso on the vertical fr down portion of the aerial. A good deal depends 011 the lenglh of the horizontal portion in relation to the vertical portion, but it has been shown that, if the horizontal part is about two or three times -the length of tho vertical P lr t, then it is actually better to cut off top part altogether, leaving the vertiCt 'l part alone. In other words, the effect the horizontal top is actually in certain circumstances neutralising the effect tho .verticil 1 part and you would bo better off with the latter alone. Persona"y, I ;im always in favour of a vertical serial strung as high as possible without Worrying about the horizontal part at slh i ~ WtANSTAJiMAJf STATIONS. RECEPTION IN AUCKLAND. n'*' 16 following t a hie. compiled I*' Mr. "• J>. Arthrir, of Remucra, shows the relative .signal strengths at which the Jna i'i Australian stations were received 9.30 p.m. for the week ended vesterday

excellent handbook. •A -vvcalil, of valuable information is ont ?in „i in the .sixth edition of Scott's 4 f. 10 Handbook which has boon issued •'. s m °»tli. 'J li,. publication adequately { alcr s for home constructors, long-dis-steiu ' ls and amateur transmitters. i Olno construction section lucid Tot 1 S '" us^rato( i with diagrams are de-v-a . to building of wave-traps', longjv/i° s 'iort-wave. receivers. The imiSl aD J- sub j ecl aerials and earths is of v C r llssc( '" Revised lists are given j , w Zealand, Australian, Japanese, a | *|fnericnn broadcasting stations and s° of world-wide short-wave stations, symbols and international iden«mja< pt * Prs aro explained. The r .* ri *nsmittiiifx section includes tk technical data, a review of activities 0 f () lc \'ew Zealand Assottin;° n ai s an up-to-date list of Do--0)010,1 amateur calls.