HONG KONG DAILY PRESS, THURSDAY, JULY 17, 1930.
PADIO
FEATURES
CHOOSING A RECEIVER.
POINTS TO CONSIDER BEFORE INSTALLING.
The selection of a suitable re-
(BY COHERER.")
When speaking of a trouble-free receiver one naturally brings to mind the all-mains set, whereby power is supplied by plugging in to
ceiver is apt to present something of a problem to those about to em- bark on radio entertainment for the first time. A few remarks as to the principal points to bear in mind when making a choice should be of interest to both, the Olding and charging troubles. Hand" and the novice.
In Hong Kong we are remark- ably fortunate in having almost as wide a field for selection" as any town in Europe or America, and there are now on the local market sets to suit every need.
Home-Constructed Sets, It is not proposed to discuss in this article kits of parts or circuits for home construction. Those who contemplate buiding their own sets undoubtedly do so with confidence in the design on which they are working.
The average requirements of those installing their first receiver are not very ambiticus, and trouble free reception of the local station
is all that is usually asked.
Sets for Local Reception. Sets answering these needs are obtainable locally from the simple one-valve headphone set, costing not more than 880, to an elaborate est of seven or eight valves costing
seca or more.
The
any convenient electric-light socket, thereby dispensing with bat teries and their attendant replac
One-Dia! Tuning.
Simplicity of control is another point much sought where radio has no further interest than the music it can provide. One-dial tuning now incorporated in the majority of manufactured sets where ex- treme range is not required, and for the ordinary broadcast range of 200 to 500 metres sufficient selecti- vity is possible with this method.
has considerable patience and a degree of enthusiasm sufficient to transcend the etherial shortcomings in the way of interference; greater satisfaction from an entertainment point of view will result in con- fining one's activities to reception of the nearer stations.
Hong Kong is not very favour- ably placed for alternative pro- grammes, and unless a good short wave set is employed very little short of Manila (under favourable conditions) is possible.
Short-Wave Sets.
For short-wave working the all- maine set must be ruled out of the Foalms of practicability. Fluctua tions in pins supply and the
TO-DAY'S WIRELESS PROGRAMME.
BROADCAST BY Z.B.W. ON 335 METRES.
3 to 11.30 am-Commercial News. 11.30 am to 12.30 p.m.-Chinese
programme. T
10.30 to 1.20 p.m.-Mid-day Euro- pean programme of Columbia records selected and supplied by MessrAnderson Music Co. 1.30 p.m.-Weather report and local time Mid-day programme con- tinued.
6
pmClose down.
to 6.30 pm-Children's pro Kratome. Auntie Pat, Uncle Dick and Uncle Jeff will enter- 'tain the children.
6.30 to 8 p.m.-Evening European programme of Columbia re cords selected and supplied by Messrs. Anderson Music Co The House That Jack Built," Ray Starita and his Ambassa dors Band (with vocal chorus). "Bonny Was A Warrior; Johnny Boker" and "Tom's Gone To Hilo," Raymond Newell and Chorus with Piano. Song of the Waterfall" and "Scent of the Jasmine," J. E Squire Celeste Octette. Cochran's 1930 Revue-Selection" and "Heads Up-Selection," Piano Solo by Billy. Mayerl.
A number of listeners, especially action of the components employed Faust-Prelude" and "Faust
for the rectification and smoothing of the current cause" instability of Bat-dwellers, find it inconvenient to erect an outside aerial or earth. This need is very well catered for tuning to an alarming extent where by several local dealers who stock wave-lengths are calculated to the quite efficient frame-aerials al-one-hundredth part of a metre: though, unless installed quite close to the transmitting station, aset of at least three valves will be found accessary for loud-speaker results.
Long-Distance Reception.
A high-tension accumulator bat- tery, with a trickle charges for home-charging, is the best possible source of supply for such a receiver, and an outside aerial of good height is essential.
The latest type of short-wave
Those who seek programmes from sets, embodying screened grid high- further afield have many more frequency amplification and screen- points to consider, and unless card-unit stages are most efficient, and with a little practice the aver age amateur will fad tuning a fairly simple matter. "Coherer
EVERYTHING.E.C.) ELECTRICAL will be pleased to advise readers
your guaranice
TENACIOUS COATING"
KEEPS YOUR SET
AT PEAK PERFORMANCE
It's not the filament but the coaring
on it that counts
Osram
Valve
as to a suitable receiver on receipt
of a letter addressed to him, c/o
Valse," Milan Symphony Or chestra, conducted by Cay Lorenzo Molajali. Lighterman Tom" and It's A Beautiful Day." Harry Dearth -Baritone, with piano. "Lionel Morketon Memories,"
Debroy Somers Band.
RADIO WONDERS.
TO SOLVE MYSTERY OF
tor.
HEREAFTER.
Mr. E. T. Fisk, managing diree of Amalgamated Wireless, Limited, addressing members of the Millions Club in Sydney last
wireless communication with Mars month, said that all the talk about left him cold, but he was convinced that, in the distant future, it
would probably be found that radio would solve the mysteries of the future world and of life after denth.
The reason for this belief, he said, was that radio made use of ether waves that permeated infinita space, so far as present knowledge went, and it was probable that, .by means of these ether waves, there would be constant and reliable communication between the future inhabitants of the earth and those who had passed over the border into anether world.
Radio Motive Power.
That, however, was a matter for the far distant future. In the near- er future he was convinced it would Le possible to use radio to propel aeroplanes and ships just as are less telegraphy and telephony were carried on at present. Meanwhile, radio was proving of great assist- ance to navigation by means of direction-inding apparatus. It was no longer necessary for a ship to go blindly through a fog, as radio apparatus did for the navigator Come Silver Moon" and "Love's during fog what lighthouses did in Dream," Duet: Dora Labbott elear weather. An Australian in- and Hubert Eisdell with J. H.vention enabled the captain or Squire Celeste Octette.
officer of a ship not equipped with. The Skaters Waltz" and "Ay ordinary wireless to send out an Revoir One Step Ray Star-S.O.S. signal giving the name of ta and his Ambassadors Band. the ship and its approximate Hold Your Glasses With Bottom location.
Up
T
Ver
Bigger and Better-
Ella Logan,
La Golondrina" (Serradell) and "La Paloma" (The Dove), Paul Whiteman and his Orch. "To A Seagull" and "Brown Eyes I Love," Hubert Eisdell, Tenor, with piano.. Lucky Girl-Selection:" Jack Payne and the B.B.C. Dance Orchestra (with vocal trio).
.
9 p.m.-Chinese programme.
1
-300 Words a Minute.
There were great possibilities for the future of beam wireless, which
Was
now the quickest and most effective means of communication between Australia and England. It was now possible simultaneously to send 300 words a minute each way between Sydney and London. The
reason the stations were situated in Victoria was that they had to
the Hong Kong Daily Press, stat o p.m.-Weather report and local comply with certain technical and
ing briefly the requirements as to range and power.
time. Chinese programme con- Defence Department requirements,
tinued
10. 0 p.m.-Close down!
HAVE YOU HEARD THESE?
Here are lists of long-wave and short-wave stations which should be picked up by anyozS in Hong Kong who has a mode- rately good set suitable for re- ceiving such signals. Success in picking up these stations also depends very largely upon tav. ourable atmospheric conditions. Readers are invited to add to this list should they succeed in
picking up any station not in cinded in either of these lists.
LONG-WAVE STATIONS.
Call Kilo-
Ware length (Metres) Station
260 Manila" 277 Shanghai 230 Tientsin
Sign cycle K.Z.I.B. 1,153 K.S.M.S. 1,055 C.R.C. 1,070
310 Shanghai K.R.C. .967
C.O.F.E. 220 Peping
$45 345 Tokyo
J.O.A.K. 670 333 Hiroshima J.O.F.K. 830. 355 Hong Kong Z.B.W.
840 357" Bombay V.U.B. 640 261 Sapporo J.O.LK 830.. 368 Keijo
370 Nagoya
370.4 Calcutta
330 Sendai
395 Dairen
·J.O.DK... 620-
J.O.C.K. 810 V.U.C "809:0 380 Kumamoto J.O.G.K. 790 J.O.H.K. 770 J.D.A.K. 760 -784 J.O.B.K... 750 C.M.B. 139 KZR.M." -796-
398 Rangoon VUE
400 Osaka
413 Manila
410 Canton
If
and the present sites were the only. ones procurable that met both re- quiremonts satisfactorily. It was not at present possible to use the beam stations for wireless tele- phony, for, whilst the Australian stations could be so used, those in Britain could not. He was hope- ful that there would be alterations in the equipment of the beam stations in Britain soon, so that' there would be "00 additional avenue for radio telephony between
Australia and Britain and Europe.
Wireless Telephony With N.2. "It was now possible for the great" majority of telephone subscribers
Australia to speak to 4,000,000 telephone subscribers in Great Britain, and to the majority of subscribers in 14 European coun trics. The next extension in radio telephony would be between Aus tralin. and New Zealand. When that
was done the Australian stations would possibly be used to give telephonic connection between New Zealand and Great Britain. The present radio telephone systemy was the longest of its kind in the world, and the rates were one-third. cheaper than those of the New York-London .service
Speaking of broadcasting, Mr. Fisk stated that, in the future, it would be possible for Australian listeners to hear the best artists singing in the world's great centres, such as London, Paris, and New York, and later also to be able to sce the artists. Steady progress was being made with television ex- periments, but at present it was in its infancy. In Britain it was possible to receive television broad casts with a powerful receiver cost- ing about £150 at a distance not
more than 30 miles from the trans- mitting station.
T. C. C.
FIXED CONDENSERS
FOR
Accuracy Dependability
and
Long Service
THE WORLD-FAMED RADIO COMPONENTS IN GREEN CASES
OBTAINABLE AT
SINCERE'S
SÓLE DISTRIBUTORS
BUY BRITISH & BE PROUD We have just unpacked a Shipment of ALUMINIUM BASE-BOARD & PANELS. Suitable for Short Wave Receivers and other sete that require Screening.
OTHER RADIO & WIRELESS PARTS (Guaranteed. British Made).
ORIENTAL COMMERCIAL & Co., LTD. BANK OF CANTON BUILDING, TEL. 24405.
NOT A NOTE IS LOST-
So Perfect are the Reproduction Qualities LOEWE FE 63 9 tube set
ís used
MADE IN ENGLAND.
Sold by all Wireless Dealers,
Osram
Valves
with the NENANIOUS COATING
WRITE for "OSRAM WIRELESS GUIDE" (1929 Edition) Sent Ppat Fren.
SHORT-WAVE STATIONS.
STATION
CALL SIGN
KILO.
CYCLER
TIME (Hose Hose)
* WORKING
6,000 Ther., Thurs, Sat., 8 p.z.
6,896 8mday widnight
REQUIRES FRAME AERIAL ONLY WITH NEW BARIUM TUBES.
WITH LOEWE SHORT WAVE ATTACHMENT.
CAN ALSO BE USED
12.30—1.30 p.m.
5-5.30 p.m.
Daring demonstration hours expert European advice is given
67.06
Dobintz (Germany)
A.F.K.
60.12 Khabazovak (Russia)
R97
56,7 Nauen
4,434 Mon, Wed, & Fri, 6 p.m. & 2 x 4,300 | 6–10 pm.
Not regolar
50.. Moscow
B.F.N.
Demonstration Hours 11-11.30 am.
43.8
Rome
1.MA
Ferth
P.C.L
2:B.L..
42.
418
23.8
Singapore
Kootwijk (Holland)
37. Hangkok (Siam)
Bydney
31.66 Melbourne
31.18 Schenectady.
7,143 Daily 6.80p,m: & 11 p.m.
V.8.1.A.B.7,310 Not regular
-7,730 | Daily:11 pm
HS4P.J.: 8,108 Tues & Fri, 9p.m.-1 m,
8.230 Not regulat 9,503 Not regular
W.2.K.A.F. 9,530 Daily 76.5
3120 Eindhoven (Holland) B.C.J.
21.28 Sydney
31 Nairobi (Kenya)
28.6
Sydney
9,820 Tri, 8 am 8. 3am. & 10 km,
9,590 Not regular
9,577 Midnight daily
T.L.O.
2.M.E
FLE
10,520 Not regular
8. GOD (England),5,8,W
25.63
22.09
Manila
23,35 Schenectady
K.L.X.E.
W.2.X.0.
T.LO..
H.S1.E.J.
18,88 Handoeng
17.4 Bandoeng
16.9
Bangkok
16,88 Hulsen (Holland)
P.E.L
163
Kootwijk (Holland)
P.OK
16.74 | Bandoeng
PLE
18.5
Nancy (France)
13.33 Pittsburg
11,020 Midnight-3 m. daily
11,751 7.30 p.m. & 3., daily, except
12,240 Nightly
Saturday and Sunday
12,850 4.m. Wed., Fri, Sat
Op.m. to midnight
16,102 Daily 6.80
10304 Daily 7pm
17,761 Randaya 7 pm &
17,700 || 11⁄2ily 10 pa.. 18,404 Each afternoon *19,220 | Daily 50-7 pim
19,201 | Daily 8 km.
W.8.XX. 21,340 Not regular
on all Wireless matters..
Loewe R 533 A.C. set $126 without Loud Speaker, with Loud Speaker $150,
4 Gives splendid volume.
"Pertrix" High Tension Dry Batteries
150 volts, 100 volts, 60 volts and 45 volts.
s. Heavy Super Duty and Grit Batteries 9, 12 and 30 volts.
NEW PARTS, RECEIVING SETS and LOUD SPEAKERS.
CANTON
RADING ASSOCIATION, LTD.
TIKADINU
CARL SCHROTER, Manager-8TH FLOOR, CHINA - Bldg.
TELEPHONE 24610,