1927-01-21 — Page 8

THE HONGKONG TELEGRAPH, FRIDAY, JANUARY 21, 1927.

CURRENT RADIO TOPICS.

NOTES AND NEWS-LOCAL AND OTHERWISE.

TELEVISION SYSTEM.

STATIC AND FADING

.. OVERCOME.

by

LOCAL TOPICS.

SOCIETY ASSIGNED NEW WAVE-LENGTH;

Photograph transmitted

[HY "MIKE ROPHONE"] radio over long distances and re- In view of the interference ceived in clearer and truer form) which was caused when the local than has ever before been accom-Society broadcast a lest concert plished are looked upon as fore-with gramaphone records on Mon- runners of a speedy, unique and any aftertioon, it was stated in a practical system of radio tele-contemporary that it was likely that the wave-length of I.K. 5.

vision.

This greatBeientific advance- which has been 175 metrus, would. ment and its ultimate possibility (be changed. I am able to state are the ideas of Dr. E. F. W. Ale-that an official letter hus been re- 'xanderson, the consultant engineer celved from the P.W.D. requesting of the General Electric Company, this to be altered to 355 metres. Javentor of the Alexanderson al-The letter states:-"With refer- ternator for trans-oceanic radio ènce to the risent janming of 600 transmission and discoverer of metre services by H.K. 5, it is re- new principles in short wave quested that no further transmis- brondeanting.

sions take place until the following

By this latest achievement; De. alterations have been made and Alexanderson has overcome the proved of vetive-A couple circuit greatest handicap radio has faced in by employed for energising the In the transmission of photoerlat, and the wave length to be graphs, as against the telephone redneral. to 55 metres. This in telegrapli' systems already in work is now being done, and to ex- use. That is interference from perted to take some airge, Hik sodic and fading.

perdable, had a fett will be brand-

Over short distapes & statie and Rul about the end of next week. fading can be overcome by a chain

system of broadcasting stations i It is now some gonsidérable. with bich power, ns is the case of time since the Sucidly, prasġel ta votee broadleasting at present, brouinust beemiso new valves were i But for trans-oceanic photographie needed, and in view of the limited transmission. Dr. Alexantierson funds available, offerts were made has devised psystem of transtaisto parchiese new pods as cheaply Bion in which the results are inde-an possible. Consequently a good pendent of the strength at signals deal of time was lost in securing ns they are received.

uotations, and the valves which have now been purchased, and RECLIVER CORRECTS FAULTS. Whether a signal is received ton which arrived over Christma, weak or Loo strong doesn't matter, have cost $100 each. This mutlay It is recorded with equal strength has left the Society in a low naz-. on the unfolding photograph, in-Jelal position, but, judging from the dependent of static or fading tests since mate, it has been worth Another advancement in the white. Fitting the valves neees- faithful reception pl

broadenst sitated altérations to the transit- photographs, over whatever dis-ter. and on Monday afternoon a tance, is the use of five separate test concert was broadens. After shades, such as white, light grey, only two records had been played. medium grey, dark grey and back, the Society received a notification As Dr. Alexanderson explains: that serious interference was be- "The transmitting machine ising cansed on 600 metres, and a res made in such a way that it auto-quest that they must cease matically at every moment selects was stated that the Societay was the shade that comes nearest to strength 10 on that wave-length, one of the five shates, and semils and when experiments were made out a telegraphic signal which se- with a reliable wave mare it was lects the corresponding shade, in found that 11.K. 5 was broadcast- the receiving machine."

ing on its proper wavelength of Photographs Iransmitted across 175. Listeners-in. in both Hong- the Atlantic in time durations from kong amb Kowlons, reported they're two to eight minutes show, remark-ception as very strong, and when able faithfulness and detail in re- the necessary adjustments to ac production.

STER TO TELEVISION.

L

commodate the new wave-length have been made, the Society should Since such detail couch! be aceom-make rapid progress. Definité plished in two minutes, Dr. Alex-dates for broadcasting will be an- anderson sees an easy step forward!

nounced later.

to the transmission of motion pie-," tures of radio, and eventually th rádio television.

RADIO IN 1936. 3.

PROPHET PREDICTS RIG CHANGES.

The two-minute photographs were transmitted on a high waves length with a frequency "of 25,000 | cycles which means przietically; Hugo Gerasinek. a New York a, speed of 25,000 times in one se-writer and“, popular prophet of cond. Lower the wavelength for sgiantific advanecment, visualizes the transmission of this photo these radio conditions of 1936: graph to 12 meters and its speed A change in broncasting with

operating below 50 is rushed up to 25,000,000 times in stations one second

meters, possibly below 10 meters, Thus this two-minute picture, allowing-4000 stations to be on the on the short wavelength, could be fair without interference. shat across the Atlantic in one one Television extending our sight thousandth part of two minutes, 10,000 cr 12,000 miles by radio. or one-eighth of a second!

It is only a short step to netunt motion picture speed,, which re quires the flashing of the film pie- tures in one-sixteenth of a 'second. so as to he fast enough to deceive the eye and appear as part of an actual moving seene.

DOTS O THE TRICK.

Tubes operating directly from the 10-volt house-lighting circuit and known as "cold" tubea, need- ing no heating of filaments.

Simply control of the radio re eeiver, eliminating the many knobr and dials now in use.

Gernsback says the loud speaker

(of 1986 will have no diaphram. It' Dr. Alexanderson has gone even may be a gaseous, talking lamp. further, in the study of radio tele-

Regarding the popularity of. vision, by inquiring into the radio, Gernsback belleves that 25 methods of reproducing views di- to 35 million receivers will be in. rectly transmitted by radio. For operation by 1986.

this.he has devised an instrument

Men are no longer

on the fence

LIGGETT & MYERS TOBACCO CO.

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Chesterfield

CIGARETTES

If you cannot obtain Chesternelä 'Ligarettes from your tobacco dealers, Duty Paid or In Bond, please call up C. Chan & Co., 10 Des Voeux Road Central, phone No. C. 4955.

4.

CHINA PROVIDENTS.

NEW ARTICLES OF ASSOCIA- TION APPROVED.

onc.

an

Consulting Committee), Mr. D. L. resolution recording such approval King (secretary and manager) was unanimously passed as and MrW.E. L. Shenton (solicitor)....

Chairman's Speech.

The Secretary having read the notice convening the meeting, the Chairman said:

extraordinary resolution.

+

PROPERTY SALE.

CHILD WELFARE,

There is nothing that marks the Resolution Confirmed.

KEEN COMPETITION FOR

great advance in social organiza- JERVOIS STREET LOT. Under the Hongkong Companies |

tion more than the attention that Ordinance, however, it is neces-

is nowadays bestowed, upon child About

share- hundred

There was a good attendance at welfare-legislation to insure sary that the approval of the new holders of the China Provident

Articles of Association shall be the China Auction Rooms yester- Loan and Mortgage Company, The object for which this meet signified by special resolution, day, when property situated in adequate schooling, laws prescrib Ltd., assembled in the offices of ing has been called is, as in- and consequently this meeting has Jervois Street was put up by Mr. ing the conditions under which with saven photo-electric cells forth so that they make one the General Managers, Mesars dicated in the notice which the been convened for the purpose of E. V. M, R. de Sousa and after children may labour, and a host

knocked down of other safeguards. each throwing a tiny beam through hundred separate impressions in Showan Tomes and Co., yesterday Secretary has just read, for the enabling the extraordinary resolu-keen bidding was

to Mr. Hung Chi Cheong for

Conservation of the child's a projector, but all forming a dis-each path, within the lime required afternoon, and finally approved, purpose of confirming as a special tion above referred to to be con-

höalth is no small item in the tinet unit, so that enough light can for ene exposure of a flm-one-in extraordinary general meeting, resolution the resolution which firmed as a special resolution 149,700.-

the new Articles of Association was passed as an extraordinary reaccordingly beg to propose this tion G of Inland Lot No. 863 to the ailments of the very young. The property put up was Sec- children's welfare campaign. In be had to reproduce the transmit-sixteenth of a second!

That confirmation as a special resolu-gether with the buildings thereon particularly those illacases aris ted scene in visible form.

Even that is too slow, says the which were adopted on January solution at such meeting.

4th. It is complicated mechanism inventor, for adequatë representa-

The details of the new Articles requiring seven different wave- tion. So he speeds up the brush lengths, one for each beam, but us- of light spots until it can make have already appeared in the ing a short wave range where something like 300,000 pleture un- S. C. M. Post, one important amendment moved at the last meet- thousands of such wavelengths ita in one second!

ing being that the number of are available without danger of "How long it will take to attain Directors be increased from seven Interference. A revolving drum, television, I do not venture to say," to nine and the Directors' re- with mirrors, is arranged to pro-is Alexanderson's modest conclu-muneration increased from $7,000 ject these, seven dots of light 80 sion. "Our work has already pro- | to $9,000. that they act as a composite brush ved that the expectation of tele- The proceedings were conduct for painting a speedy picture. vision is not unreasonable, anded by Mr. Shewan, who was sup- The spots of light are hurled that it may be accomplished with ported by Sir Robert Ho Tung, across the screen, gradually rising means that are in our possession Mr. C. A. da Roza, Mr. A. L. Alvos, upward as they move back and at the present day.".

Mr. D. Tinling (members of the

signified by special resolution;tion namely: concerned the approval of the draft new Articles of Association of the Company,

You will also remember that nt the above mentioned meeting I ex- plained to you why your Consult- ing Committee thought it essential to alter the Articles of Associa tion, and I do not consider It necessary to deal further there- with, except to add that at the meeting in question the draft new Articles of Association was animously approved, and that a

· up-

known as No. 119. Jervois Street,

That the regulations contained hold for the unexpired residue of ing from derangement of stomach in the printed document sub- the term of 999 years from the 1st and intestinal functions, Baby'a mitted to the Meeting and for January, 1852, having an area. of. Own Tablets are virtually indis- the purpose of identification 903 square feet at an annual pensable. They allay the pains subscribed by the Chairman Crown Ront of $20.45,

thereof be approved and adopted as the Articles of Association of the Company, in substitution for and to the exclusion of all existing Articles thereof. and I shall be glad if some share holder will kindly second that,

Mr. C. A. da Roza seconded and the motion was carried.

of teething almost as if by magic, Opening at $42,000 with bids of cool feverishness, relleve croup $100 acceptable, all raises with the and colds, expel worma, are easy to exception of one were at this administer and guaranteed free of figure, the exception being a bid opiates and all noxious drugs. Of of $1,000. Bids were rapid up o $46,000, from which point it be chemists everywhere, or at 60 come a duel, the closure being cents the vial from The Dr. Wil

lama Medicine Co., 60, Klangse. made at the figure mentioned on the withdrawal of the competitor. Road, Shanghai