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