1925-02-07 — Page 17

CLEARANCE SALE

30% REDUCTION

For Two Weeks Only

THE HONGKONG TELEGRAPH;

RADIO NOTES AND NEWS.

SATURDAY, FEBRUARY 7, 1925.

Wireless Changes: Signor Marconl's Vlows. Senator Marooni, as chairman the daylight absorption dooreased of council of the Royal Society of vory rapidly with the shortening Arta, delivored the inaugural, of wave-longth, address of the 171st session of tho socioty, at 18, John-street, Adolphi, his subject boing "Radio Communiostion."

SPECIAL EXPERIMENTS. In October transmission expori- mants were carried out on á 32-j metre wavefrom Poldhu, in Corn- He stated his ballof that the wall, to specially installed re- whole theory and practice of long golvora at Montreal, Now York, distanco wiròloss communication Rio. Buenos Aires, and Sydney:

NOISES OF THE PIT. The hubbub of the wheat pit itself is brought to the ears of radio listeners daily, while the phone of station WGN, at Chien- pit is open, through the mloro- go. This accompanies the Board of Trade quotations broadcast by. the half hour overy day,

...

PLUGS FOR RADIO, : Tho now Hunts Point Hospital

was just now undergoing an im-(Australia). Although the avail-in the Bronx, New York, has portant, and somewhat radicalable power utilized at Poldhu special plugs built into each room ohango. This, to his mind, only was only 12 kilowatts, it was at or ward, for the attachment of a

LES ELÉGANGES DE PARIS want to prove that it was depon- once found possible to transmit radio receiver. The pluge.con-

8, Queen's Road Central,

Telephone 386.

Telephone 386.

OUR GREAT ECONOMY SALE

NOW ON

Genuine reductions on every item in stock including Generar Merchandise and Wear- ing Apparel for Men Women and Children. Shoes and Boots, Gent's Hats, Ladies Hats, Ladies' and Gent's, Overcoats and Bath Robes. Household Goods, Ladies' Silk and Wool Scarves.

1,000 dozens

OF

Ladies' Silk Hosiery

just arrived SALE AT

90

cts. pair. Value $1.50

YEE SANG FAT CO.

ELECTRO -- PLATING.

OVER TWENTY YEARS EXPERIENCE in the Electro- doposition of Motals in Hongkong placon un in a position to offor reliable and efficient servico for the plating of articios in Gold, Silver, Nickol and Copper,

Artistio finishes in Bronze, Antique Copper, and Oxydized Silver.

Polishodland Lacquered Brassware.

William C. Jack & Co., Ltd Electrical Engineers,

Tél. Central 358. Astor House Bldg., Hongkong,

LØBETY & PETRUS KAZANCO CAL

IGARETTES

dent on phenomena, in regard to signals and messages to Now host to a central receiving station, which their understanding had York, Rio and Buenos Aires and norial..

JOT fo & great degree in- completo.

Ho bad always attached con- sidorable importance to the solving of the problem of short- wavo directional wirelosa com- munication, moro generally roferred to

tho "beam

system. Ho could well under- stand the utility of the non- directional stations for many Naval and marine purposes, and of course, for broadcasting, but for ordinary efficient communication botwoon firod places, the right and logical thing to de, from the points of view of both scornoy and economy, was to concentrato all the radiated energy into a beam directed towards the place with which it was dosirod to communicato,

A serios of tosts WAB for the first timo carried out with short waves over what might bo termod world-wide distances during last winter, spring, and summer. These teste proved to be successful, inolud-j ing the Grst tolophonic munication with Australia ovor realized, although the amount of power utilized at the sonding, station novor exceeded 20 kilo- watts,

com-

The results of these toats had gone far to convince him that the short wave "beam" syatom would be capable of transmitting a far greater number of words per 24 hours botween England and far distant countries, such as Aus- tralia, than would be, possible by the comparatively powerful,

expoh.

cumbersome, and sive stations in UsQ. Or planned for use, for Imperial commoralal communications. The stations intended for this purpose, which they were now erooting in England under a coil-

EUROPE

"COMES IN LOUD."

"Fans" with this kind of sot had no trouble getting Europe during the recent trans-Atlantic tests. Thurston McCauley, radio ongineer, happens to be the operator in this case. He put this six-tube superbeterodyno, on a van, sot it up on the sands of Long Beach, L. I., and listened in on a loop and loud speaker to England, Scotland, Spain and other countries.

་་

tract with the Post Office, and when the whole of the groat othora to be installed in toirolo track separating those principal Dominions and fardi- tant countries, would all be on the "beam" system.

places from Poidhu was exposed to daylight, During a completo vals carried out with Sydney, day transmission at fixed inter- that station received tho Poldhu signals for 2311⁄2 hours out of the over 24.

Tesla begun in August of this your had enabled them to die cover that the daylight range of practica!ootornunication long distances inoroased very rapidly as the wave longth was places situated south of the The tests from England to reduced. Comparative tosta on Equator, such as Sydney, Buenos different wave lengths wore car Aires, Rio de Janeiro, and.Capo ried out for a period of over two Town, wore particularly interest- months in a variety of places,ing for the reason that the waves and all observations wont to oon had always in those cases to firm the fact that for waves betraverso what might be called a tween 100 metres and 32 motres

Chesterfield is an exceptionally fine cigarette made to please even the most critical smoker.

The finest of Turkish and Ameri can tobaccos are skilfully blended to produce a perfectly balanced cigarette of highest quality and most pleasing taste.

Chesterfield

~millions!

They Satisfy-

Lagasts & BévaRD TOBAGOR CO

summor zono, and word therefore subjected to an averaging offoct of conditions, which could novor possibly exist when the trans- missions took place only batwaon stations situated in the northern or southern hemisphoros.

During Novomber come sue- cessful recolving tests woro carried out in England from a low-power transmitting station in Australia utilizing wavos of 51, motros. During the presont month trials had been continued. with Canada, the United States, Brazil, the Argentino, and Au- stralia, and also for the first time with Bombay and Karachi in India and Cape Town in South Africa The power utilized at the Poldhu Station during all these toate was 15 kilowatts.

bo

"I am now firmly convinced," Soustor Marconi added, "that the Beam' Stations employing only a small fraction of the power used by some of the most modern long! wave stations, and much lower and fewer masts, will be able to communicate at practically any time with any part of the Empire, and I cannot refrain from ox- prossing my strong porsonal opinion that these powerful long- wavo stations will soon found to bo uneconomical and comparatively Indolent so far as long distance commercial communications are concerned. What remains now to be done is to complete the systematic study of those waves especially in ro gard to their transit or pros pagation through space. Thoy open up what I believe will prove to be a most fertile flold for the investigator and an entirely now horizon to our view."

ONLY ONE IN ITALY, Italy has only one broadcaster, reports American Vice Consul Dorr at Naples. And Italy is the -native country of Murouni, phon

LAST WEEK,

-OF

WHITEAWAY'S SALE

9th. to 14th. February

ALL

EXCEMENTS, REMNANTS Band

EXCESS STOCK MUST BE CLEARED

DOLLAR DAY

ON

MONDAY, Feb. 9th. THOUSANDS OF

ONE DOLLAR

BARGAINS

Do Not Miss These Sale ends positively on SATURDAY 14th. Feb.

Whiteaway Laidlaw & Co., Ltd.

HONGKONG

E. HING & CO. SHIPBUILDING MATERIALS SHIP CHANDLERS

HARDWARE MERCHANTS. PHONE CENTRAL No. 1116.

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Contral.

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...

- QUEEN'S BUILDINGS, HONGKONG,

SINCERES, SUN 00., WING ON, SHALL

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