1932-04-02 — Page 10

10

P.&O.-British India Apcar and

Eastern & Australian Lines

(COMPANIES incorporated in ENGLAND). MAIL AND PASSENGER STEAMERS. TAKING CARGO FOR

FFRAITS, JAVA, BURMA, CEYLON, INDIA, PERSIAN GUI

WEST INDIES, MAURITIUS, EAST AND SOUTH AFRICA, AUSTRALASIA, INCLUDING NEW ZEALAND AND QUEENSLAND PORTS, AND RED SEA, EGYPT, CONSTANTINOPLE, GREECE, LEVANTINE PORTS, EUROPE, &c.

THE

CHINA MAIL.

RADIO BEACONS

AN AID TO MARINE

NAVIGATION.

tion-finders or radio compasses, as they are known in America.

Mr.

In the course of 40 pages |Putnam gives an account of the use of the fixed radio beacon in navigation, a survey of the distri- bution of the beacons in his ser- vico, together with details of 'their ranges, times of operation and general signal characteristics. Charts show the distribution of the beacons at present is operation and of those under construction,

lightship, add to the interest of the

From the earliest days of the de-lings or locating the positions of while a number of photographs of velopment of practical radio com enemy ships and aircraft. Under beacons, on shore, lighthouse and munication, one of its most im-more normal peace conditions these portant applications has been its stations continued to be employed text. In the development of such s direct service as an aid to marine for the purpose of giving bearings beacon service every effort has navigation and its contribution to- to ships which had to send special been made to locate them at points wards the safety of life. at sea. signals for the purpose.

which are important from the point Many of the dangers of the sea The Modern Ship's Direction-

ef view of mavigation. For this Finder. have been removed by the circula-

treason many of the installations tion of weather reports by wireless With the increasing sensitiveness' and by the provision of the means obtained as a result of the develop houses, particularly near harbour Jare set up on lightships or at light- of summoning assistance in times ment of the valve amplifier, the entrances. Such beacon transmit- need and distress, writes size of the receiving loop was con- ters are almost entirely automatic FR. L. Smith-Rose, D.Sc., Ph.D., siderably reduced, and finally in operation, and the limited main-

PENINSULAR & ORIENTAL FORTNIGHTLY DIRECT ROYAL MAIL STEAMERS. (Under Contract with H.M. Government.) ́

6.8.

From Tone Hong Kong

About

I+"BURDWAN

CORFU

1932. 6,500

2nd Apr.

Noon 15,000 Dth Apr. RAWALPINDI 17,000 23rd

Apr.

BANPURA

17.000 7th

**SOMALI

4,800 14th

CHITRAL

RANCHI

NALDERA

15.000 21st 17,000 4th *BANGALORE 8,500 11th

18th June KAISAR-I-HIND 12.000 2nd July ++*BHUTAN 1 0,000 8th July

RAJPUTANA 17,000 16th Joly MANTUA

11,000 30th It"SOUDAN

1 16,000

RAWALPINDI KANPURA MALWA

Destination.

Marseilles, London, Havre, Hamburg,

Rotterdam, Antwerp & Hull. Marseilles & London. Hombay, Marseilles & London & London.

of

A.M.LE.E., in the Nautical Maga- has reached such small dimensions:

now

dent of any weather conditions.

The modern

xine. In addition to these a means that it may be mounted in a suit-tenance required is carried out by Ip provided by which the able position on board ship. When the existing lighthouse staff. navigator can ascertain hla bear- it is required to take a bearing the missions varies with weather con- many cases the schedule of trans- ings from fixed points and locate desired signals are turned in on theditions, being more frequent in fog his position simply by the use of loop, which is then rotated until than in clear weather. The signal radio signals and quite indepen- the position of minimum signal code employed is reduced to the strength is found. This gives the

simplest characters-go that the radio direction-bearing of the transmitting station signals may be easily recognised finder owes its success very largely relative to the ship, and if the com- and the beacon identified by a to the introduction of valves and pass reading of the ship's head be navigator without special skill in valve amplifiers, enabling a moder- noted at the same time, the geogra-radio matters. ately large reception range to be phical bearing of the distant

The booklet under review gives obtained, and its practical develop-station is obtained and may be laid further a brief historical resume of ment therefere dates from about oft on a suitable chart. With this the subject of navigation by radio, 1915. Previous to this, however, arrangement of the system the pro-and refers also to the alternative certain systems of direction-finding cess of taking radio bearings is were in use in France and America, placed in the hands or under the with the short wave beam and the means of providing radio bearings. but these were confined to short-direct supervision of the navigator rotating loop beacon. Mention is distance working, and the com- himself on board ship, without hav-also made of the course indicator paratively crude instruments then ing to rely upon the assistance of

system or "radio range" as develop-|

land the United States of America. Principle of the Radio Direction Radio Beacons For Navigation. The writer of this review has had While radio bearings may be

a not inconsiderable amount of ex-

in use made accurate bearing ob-jan operator in a distant shoreled for air navigation in Germany Hombay,eilles, London, Havreservations difficult to obtain.

"Durg, R'tardam, Antwerp & Hall.

Bambay,

May May

Marseilles & London, May

Marsellies June Bombay, Marseilles & London. Заре Bombay, Marsailles, London, Havre H'burg, R'terdam, Antwerp & Bull. Bombay, les

Marseilles & London. Bombay, & London.

Bombay, Marallies, London. Hayre,

Bombay, Marsailles & London,

Bamowy July Bombay, Marsellles London. 6,800 6th Aug.

Bombay, Marseilles, London, Havre H'burg. R'terdam, Antwerp & Hall. 17,000 18th Ang. Bombay, Marseilles & London. 17,000 27th Aug. Marseilles & London. 11,000 10th Sept

Bombay, Marseilles & London.

• Cargo only. † Calls Casablanen. Calls Djibouti.

Khedival Mail Steamship Co.

BRITISH INDIA-APCAR SAILINGS.

Finder.

station.

As is now well known, the taken in this manner upon signals porience in the practice of radio modern radio direction-finder received from any transmitting direction-finding In the

British makes use of a closed loop or coil station whose position is known, it Isles during the past 12 years. instead of an open aerial for the ter been found desirable to instad While this experience doux. not reception af signals from the dis- certain beacon stations, the sole permit him to draw the conclusion tant transmitting station. The purpose of which is to provide re-that the radio compass and fixed strength of signals received with gular routine transmissions, par beacon is the only useful system the aid of auch a loop depends ticularly during foggy weather, for for marine navigation by radio, he upon its direction relative to that the use of ships fitted with radio is entirely in accordance with Mr. of the transmitting station. When direction-finders. The inaugura Putnam in his conclusions as to the the plane of the loop is directed tion of such a service of fixed reliability of radio bearings under towards the station the received beacon stations was made by the all weather conditions and at all

Froquant connection from Port Said for Passengers and Cargo to Consignal is at its maximum strength, Lighthouse Service of the United oversea ranges likely to be useful atantinople, Pireaus, Smyrna and other Levant Forts by steamers of the and if the coil is now turned States Department of Commerce, for marine working. The modern. through a right angle the sigual by the installation of three stations radio compass or direction-Ander folla to a minimum latensity, in the vicinity of New York Har has, in fact, become one of the most Owing to the particular charac-bour in 1920. This was followed precise navigational Instruments teristic of such a receiver it by the erection of similar stations now available to those whose every- easier to locate the position of in various parts of the world, until day business takes them to sen. minimum signal strength so that, now there are 192 such radio when this position of the coil is beacons regularly in service for sound, the plane of the coil or loop marine navigation, of which 90 are is perpendicular to the direction lastalled on the coasts, including of the distance transmitting station the Great Lakes, of the United [from which the signals emanate. States of America.

"TALMA

TALAMBA TAKADA

$ 10,000

8,000

1932.

3rd Apr.

9.30 ..

15th Apr. Singapore, Penang & Calcutta. 7,000 1st May

Calls Port Swettenham,

In order to obtain sufficient densi- The organisation of this beacon tivity the earliest direction-finders service and its use as an aid to B.L. Apcar Line steamers have excellent accommodation for 1st employed receiving loops of larga marine navigation is described in and 2nd class passengers.

This

EASTERN & AUSTRALIAN SAILINGS (South).mine bearings on Incoming signale, booklet should be in the hands of

1982

NELLORE TANDA

7,000 80th Apr. 7,000 Brd June

Manila, Habaul, Brisbane.

& Melbourne.

Regular monthly sailings from and Hong Kong to Australia.

Hong Kong to Sydney—19 dayı.

STEAMERS' MOVEMENTS.

The 8.8. Nellore left Manila for this port on March 80 with the outward English Mails, and was due here at about 5 o'clock morning.

this

for this port on March 31, and is The s.a. Takada left Singapore

due here on April 6.

area supported on high masts.jan interesting booklet by George R These loops were fixed in position Putnam, published by the US. De and were used with an instrument partment of Commerce at the (called a radio-gonlometer to deter-modest price of 15 cents.

Naturally such ап arrangement everyone interested in the applica- CONSIGNEES' NOTICE was more suitable for installation¦tion of radio to marine navigation: on land than on board ship, and and particularly should it be studi- Consignees of cargo ex 8.a. Ben- Sydney during the

war several suched by the masters and navigators vorlich are reminded to take de- stations were erected in this coun- of the 4,000 odd ships of all nation livery of their goods which will ¡try for the purpose of taking bear-{alities now fitted with radio direc-Į be subject to rent after April 6.

Hong Kong to Shanghat and Japan

Frequent connections from Australia with the following:-

The Union 9.8. Company's steamers to the United Kingdom via New

Zealand, Vancouver, San Francisco, ste.

The P. & O, Royal Mail Steamer to London and

The P. & O. Branch Service of steamers to London via Bues.

The New Zealand Shipping Company's steamers for Southampton and

· London via Panama Canal

SAILINGS TO SHANGHAI & JAPAN.

THE HONGKONG & WHAMPOA

Telegrama:

DOCK CO., HEAD OFFICE AND WORKS:

LTD.,

"MANIFESTO, RONG: KONG- KOWLOON, HONG KONGBONG KONG OFFICE 18021

KOWLOON DOCK $8953,

DOCK OWNERS, SHIP DESIGNERS AND BUILDERS, MARINE AND LAND ENGINEERS, BOILER MAKERS, IRON, STEEL, AND BRASS FOUNDERS,

FORGE MASTERS, WELDERS AND ELECTRICIANS.

SATURDAY, APRIL 2, 1932.

SPECIAL ROUND

TRIP FARES

ΤΟ

EUROPE

WEEKLY TRANS-PACIFIC SERVICE

To Ban Francisco, Los Angeles & New York ris Panama The Sunshine Belt via Honolulu Fortnightly sailings on Tuesdays

Pres. Hoover ..... Pres. Jackson

Pres. McKinley

To Seattle & Vletoria.

The Short, Straight Routs to America Fortnightly sailings on Saturdays

.Apr. 12 Pres. Cleveland Apr. 26 Pres. Taft.... May 10 Pres. Jefferson

..Apr. 16 ápr. 30 May 14

£79 £112 £120 Special through rates to Europe via

United States. Direct connections with all Atlantic lines. Choice of rail lines across United States and Canada, liberal stop-over privileges for sight-seeing.

ROUND TRIP FARE TO EUROPE. From Hong Kong to Naples.

. Marsellite

London

W

Full particulars upon application. EUROPE AND NEW YORK DIRECT

£152, 5.04.

£1M. 0.08 £169.15.08.

ROUND THE WORLD, Fortnightly salling on Sunday via Manila, Straits, Colombo. Bombay, Suez Canal, Alexandria, Naples, Genos, Marseilles, New York and Boston.

****

..

May 1, 8 ...May 15, 8

Pren. Harrison....Apr. 3, a Pres Fierce Fres. Hayes...Apr. 17,8 Pres Monroe

TO MANILA Pres. Harrison .Apr. 3, 9 a.m. Pres. Hayes... Apr. 17, 8 a.m. Pres. Hoover ..Apr. 5. 6 p.m.Pres. Jackson Apr. 19, 6 p.m. Pres. Cleveland Apr. 9, 6 p.m.Prem. Taft....Apr. 23. 6 p.m.

CANTON BRANCH-4, SHA KER STRRET,

DOLLAR STEAMSHIP LINES AMERICAN MAIL LINE

JANER

MAJHENER

LIVE

PALKA

EXPRESS

SERVICE

BARBER WILHELMSEN

LINE

THE PREMIER ALL WATER ROUTE TO NEW YORK and other US. Atlantic Ports via Panama.

All vessels call at SAN FRANCISCO and LOS ANGELES en route.

Passengers desiring to travel by this interesting route will find the accommodation provided well up to their expectations, and at a cost most reasonable.

42 Days To New York.

For Passenger and Freight information please apply:--

DODWELL & CO., LTD.

Queen's Buildings.

Telephone 28021.

Agents.

CHITRAL SIRDEANA

1012

BOMAL!

NELLORE *ALIPORE BANPURA TAKADA

6,800

3rd Apr. Shanghai, Koba & Yokohama.

Noon

On Lloyda

7,000

5,800

6th Apr. Moji & Kobe.

4th Apr. Mo, Kobe, Osaka & Yokohama.

List of

17.000

7th

7,000

Eth

+

15,000

Apr. | Shanghai, Kobe & Yokohama. Apr. Amoy, Moll, Kobe & Osaka. 21st Apr. Shanghai, Kobe & Yokohama,

•

approved

Mojb

ghai

Steel

Manufse-

turers.

BANGALORE

BANCHI...

8,000 22nd Apr.

Kobe 4 Yokohama. ghal Kobe & Yokohama.

6,500 30th Shanghai, Kobe & Yokoham 1.17,000. 5th May TILAWA

10,000

Mojl, Kobe Danks. TANDA

7,000 BLE May

Moji Kobo Osaks Thama. NALDERA

16,000

19th May

Shanghal, Moji; Kobe & Yokohama. BHUTAN

4,000 29th MAY Bhanghai,

Yokohama KATHARI-HINDỈ 12,000 2nd June

Shangba), Moll, Kobe & Yokohama. 6th June S'hai, Moll, Kobe, Osaks & Yhama. KANKIN

7,000 17000 | 181k RAJPUTANA

June Shaoghal, Kobe & Yokohama. 6,800 28th PROUDAN

June Shanghal, Kobe & Yokohama.“

! Cargo only.

་

All dates are approximata und anbfood se ́alteration without notice, All Cabins are fitted with Electric Fans or Funka Louvre System.. ji Staamara un London and Austra Man'" Lissu ars" Atted with Laundries, Parcels measuring 'not more than & cn. I will be received at the Com pany's Office up to Noon on the day wrevious to sailing

¿Por further information, Passage, Frught. Handbooks, etc., apply tos-

MACKINNON, MACKENZIE & CO.

Building, Connaught Rd. C., Hong Kong.

Agents

TS.S. “EMPRESS OF JAPAN.”

In No. 1 Dock. Dimensions:—666′0?. 0.A. 1 858a × 48′6”- MId. 16,000 tona Gross

The Company possesses Six Granite Docks and Twa Patent Slipways.

Harbour

Call: Finge

Enginous.

Beller-

maker

wy,"

Bhipwright

.... The dimensions of No. 1 Dock are 700′0" x 58′0' x 80′8′′!. over sill, H, W. 0.8. T. Salvage Tug "Ebury. Kawick." 2000 LEP. Wireless Call Signal V.P.RT, and "Flag Call Signal T.HLQ.B. Bheurlege capable of lifting 80 tom. 25

-Codes Used: Al, A.B.C. Fifik. Édition: Engineering, First and Second Edition. Western, Unian Bentley and Watkins.

Kindly und angufelan to the Chief Manager

R. M. DYER, B.SC, HINA, Kowloon Docks, Hongkong.

BRITISH WUCHOW LINE

SAILING DATES FOR APRIL, 1992 (Subject to Change). DEPARTURE HOURS: Hong Kong 5.30 pm, Wuchow 3. p.m.

Steamer

Leaves

Arrives Wachow

3rd TUES.

Ho. Kon.

SUN TAI HING TAX MING TUES, TAI HING FEL TAIMING SUN.

WED. TALMING OFRI: MON

TAI HING STARMING

Lesyou Wuchow.

Y

Arrives

Hear Yoati

6th THURS.

8th SAT: 9th

5th WED. 5th THURS. 7th FRI 8th SUN 10th

MON. 10th TUES. 12th WED. 18th-FRI 18th SAT

17th HON. 20th THURS 21st FBL

15th

2012 BUN.

181 WED.

WED. 20th FRI.

TAI HING SAT... 23rd MON. ⠀ 25th - TUES,

'1112) TUEEL 1215: ∙13th) THURS: TAK 1845) HUN 17th 18th TUESD 23rd BUN.

26th WED.

22nd

28th

1st] MON..

Zand

3rd] WED, 4-4EM,

TAI MING MON, 29th| WED,- 17th)'THURS.. 28th) FEL A TAI HING:

THURS, 28th SAT: 80th BUN

· TAI HING | SAT. 30th. MON, 2ed | TUFS

Porta of Call-Bamakui, Skalking, Takhing & Doshing-

· Forss Return" (not including -menis): $20.00, --

Meals and Wines, nga to be obtained on board.-

Hong Kong Arrivalé & Departures from Tai Hing, Wharf.

⠀ For information apply tomu

29, Connaught: Bondi,West

SANG WO

Page 10Page 11

SATURDAY, APRIL 2, 1932.

Just Received..

YVERT ET TELLIER POSTAGE STAMP CATALOGUE

FOR

1932

At $6 Each.

GRACA & CO.

Dealers in Postage Stamps, Religious Goode, Pictorial Post Cards,

Toys, etc..

No. 10, WYNDHAM STREET,

P.O. Box No. 620.

HONG KONG