1931-10-08 — Page 2

HONG KONG DAILY PRESS, THURSDAY, OCTOBER 8, 1931.

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1932

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BOLE AGENTS

FEATURES

NEW ITALIAN WIRE

LESS DECREE.

ADDITIONAL REGULATIONS APPLYING TO NATIONAL: SHIPS.

A new Italian Decret regulat- jing the was of wireless on olt

"Italian, vessels has now come. into force. While it embodies all the recommendations of the

LIGHTING EUROPE WIRELESS AND

BY WIRELESS.

SET WITH LAMPS TO INDICATE STATIONS.

London, September, 14-A wire- less receiver, fitted with a map of Europe and little red lights which shine underneath the place to which you are listening, is one of the novelties to be shown for the first time at the National Radio Exhibi-

Washington Convention and the Safety "of Life at Sea Convention next Friday? tion, the Decree stipulates in detail mang requirements which exceed those called for by these "Conventions and which utso"co ceed the requirements of British law.

The recommendations of the Washington Convention and the Safety of Life at Sea Convention indicato in a general way the minimum requirements necessary for wireless service in various classes

METEOROLOGY.

REMARKABLE ADVANCE IN WEATHER REPORTS.

The Board of Trade requires thesponded, and acknowledgment made Master of a foreign-going ship to of the facilities which many ship. have general knowledge of this owners and the marine wireleas system of wireless weather reports, companies extend, and the encour amplo weather chart and to make and the ability to constructs agement, which marine Super inten- deductions as to the probable dents have given in this work, done changes of weather along the pro in the interests of the whole ship posed track of his ship, and there ping community, and all ashore and The new organisation for observ. is thus an additional incentive to

in the air who are served by the ing, and reporting meteorological to apply in a most practical way Obeervers. Our greatest thanks aro the officers of the merchant navy Corps of British Voluntary Marine information by selected Britiab their knowledge of marina meteoro due and are given to the Comman- ships was commenced on May 1,logy to safe and economical naviders and officers of regular observ 1930, and in the report of the year's In concluding the report, recog of Voluntary Marine Observers and

igation. A

ing ships who constitute the Corps work by these voluntary observers nition is made of the manner in

to the wireless operatora, of select which is published in a recent issue which, the merchant navy bas re-ed ships" of the Marine Observer, it is parti cularly interesting to read the re- cord of progress made in the uno HAVE YOU HEARD THESE? of wireless in compiling meteoro logical information.

The set has been designed to get every broadcasting station in Europe (and indicato it on the map) and it is so highly selective that if the number of stations were

Under the bonding British doubled it would still be able to Selected Ships and Routine Wire- receive them without interference.less Weather Telegraphy," we find | l The managing director of Arun Electrical Supplies, Ltd., who are marketing the sat, describing it last night, said: "The receiver is a all-electric Stenode Radiostat, cap

•

of ships, but places no restrictionable of separating stations spaced on any extension of these require three kilocycles apart. On the top ments by individual countries as of the set is & map of Europe, about long as the contracting governments 1ib. 10in by Ift 8in. Under each do not impose upon foreign stations, radio station, which is indicated, which are temporarily within their there is a lemp. territorial waters, conditions more sovere then those imposed by the Conventions,

Over 100 Stations. These lamps light up whenever the set is tuned to the station they

that greater progress has been made during the last" 11 months in this particular branch of the work than than in any other marine meteoro logical work ainee re-organisation after the Great War, and no re- cord can be found of such a mark- ed advance in the whole history of marine meteorology, The British service of organised marine meteo- rology being entirely voluntary, it was casential that the support of the merchant navy should be as- sured for any scheme in which

The Italian Ministerial Decree of mark. If you want Rome.. you turn Great Britain was to take part and

the dial round until the lamp lights at Rome; and, in cach case, for

it was highly desirable that the ex- perience of the executive and wire

April 1, 1931, embodies regulations with which Italian yessels must comply, and, although they do not over 100 stations, the music or officers of the merchant navy

apply to British vessels, they are of interest when compared with our own national requirements.

The Italian regulations cover such

voices heard in the loudspeaker

should be utilised in framing, a

is coming from the city which is scheme. When this was done, and lit up on the map."

a world-wide scheme drawn up, it

Here are liste of long-wave and short-wave stations which ahould be picked up by anyons in Hong Kong who has a mode rately good not suitable for re caiving such signals. Success In

· picking up these stations also depands very largely upon far ourable atmospheric conditions. Readers are invited to add to this list should they succeed in picking up any station not in oluded in either of these lists.

STATION

The considered by Inter- Dobints

matters as the acessibility of the wireless cubin, the shielding of ship's wiring, breaking of the ship's rigging by porcelain insulators, provision of fire extinguishers, and the equipment of certain classes of ships with shortwave apparatus, lifeboat sets and Direction Finders.

The Wireless Cabin,

They provide that the wireless cabin must be accessible for the handing in of messages and notices to facilitate access must be sup- plied. On ships which carry dan. gerous cargo the wireless cabin

WATO ...length

LONG-WAVE STATIONS.

Call Kilo

Sign cycle

KZIB 1,158

K.8.M.S. 1,083 J.O.A.K. 80

(Metras) Station

290 Manila 277 Shanghai 345, Tokyo

333 Hiroshima J.O.F.K 850 355...

Hong Kong Z.B.W,

848 357.1-Bombay V.U.B. 840 381 Sapporo 1.0.LE. 830 568 KelloTODKA 370 Nagoya, J.0.0.0 370.4 Calcutta V.U.O 809.9

330 Kumamoto 3.0.G.K 700 320 Sendait "305 Dairen)

400. Osaka) M 410 Canton 480 Manila

SHORT-WAVE STATIONS.

just not has only no dia to adnatioiad Conference of the Jafety 60.15 Rubbar, (Germany))

receiver, and, also, turns. & com- mutator with 305 segments (185 for medium waves and 160 for the long waves),

All the segments are connected to a lamp on the map, so that as the commutator is turned lamp after lamp lights up./

A clever method of synchronising has been employed in order that the right lamp lights up for each station.

must be constructed of iron and national distrese call, must be car must be situated in one of the ried, and the aerial lead-ia must highest and most isolated parts of the ship. A fire extinguisher, with necessary spare parts, must be provided for avery, wireless station. The position of the wireless cabin must be such, that the', wireless circuits are not within eight metres

|

617-NauenW,

Mosco 43.5 Rome Perth

42

CALL BIGY

Kito

J.O.HK 770 JOAK 700.

J.O.B.K .750

C.H.B. -732 KZ.R.M. 626

Træ# (Hano Kong)

·A.F.K. 4,434 Mon., Wad, & Fri, 6pm. & 27

4,900 6-10 p. 5,391 Nat regular

HSAFJ. 2.B.L

PA.G.I

F.N. -1.21,4

6.4.04

28.8

Singapore Kootwijk (Holland). Hangkok (Bism) Sydney

V.6.1.4.B. F.C.L

31.55

Melbourne

aLo.

21:48 81.20 $1.29

Schenectady

W.3.X.A.F.

Eindhoven (Holland) | P.C.J.

Sydney

2.5.0.

81.

28.5

Nairobi (Konya), TLO. Sydney

2.M.E.

Bandoang

P.I.B

of Life at Set, in Londen in 1929, 50, and Article 35 of that Convention was, in part, based upon it. This 41.8 Article agrees, among other things 87.

to encourage the collection of meteorological data by ships at sea and to arrange for their examina tion, dissemination and exchange in the manner most suitable for the purpose of aiding navigation."?

Emciency of British Observers.

The British corps of voluntary marine observers has carried out its duties so well that it has enabled Great Britain to be the first country to carry out, in the main, her

be screened, to prevent accident, agreements in respect of this To obviate loss due to absorption Article. The scheme brought into and re-radiation, the rigging must forro last year was that certain be broken up by porcelain insula ships known as selected" ships tors, and, as a general rule the rig- should make their observationă at definite times and transmit them so that they may be received at the Meteorological Office within one

of the ship's compasses, and all ging of fore and aft stays is pro- eleotris conductors on the upper hibited. Where, however, this can deck must either be enclosed in not be avoided the stays must be metal tubing which is "earthed,

to the ship's hull, de must consist broken by insulators. A portable hour of observation. As all the

of armoured cable.The slectrical power supply must be direct car rent, at a pressure not exceeding

amp must be provided on the wire-selected" ships are known it has less station for the special purpose been possible to arrange a schedule 260 volts, and must always be at of inspecting the aerial network and and roll call so that their reports the disposal of the operator during its entry to the wireless cabin-at can be sent at a known time and the hours allocated to the wireless night time. telegraph service. The power of the ship's generators must be such, that even when the full load of all

the other electrical services of the ship are imposed on the generator, there must still be sufficient to operate the wireless apparatus in

an efficient manner,

Accommodation must be provided to safeguard documents, drawings, etc., which are the property of the wireless station."

Aerial and Rigging

on, & krown wavelength to enable other ships at sea to know when

Short Wave Wireless and Direction to listen and benefit from the in

Finders:

A

formation transmitted, The main wireless equipment re- Tributa is paid to the wireless quired by the Italian Decree is pras operators of the British, coast sta tically the samo na that required tion through which the reports are under British Regulations, but with transmitted and also the wireless additions in some cases. For ex- operators of Britishselected" ample, vessels of upwards of 5,000 ships and in this connection the tons on certain trade routes must have a shortwave transmitter, as Marine Observer says:-They have. from January 1, 1931, and Direction proved, in one of the most congest Finders are compulsory on all

The eficiency of a wireless aerial, vessels trading outside Mediter ed areas of marine communication, both for transmitting and receiving, rancan limits. The only exemption that the British scheme in not only depends upon its height and it to the provision of a Direction workable but a remedy for "extr freedom from absorption, due to the Finder can be obtained by ships proximity of masts, metal rigging, whose voyages do not extend be- gaat, and wasteful stays, oto The Italian Deereo en vond in the Alantic.or Kassair in wireless weather repor Aures a high standard of offieiesoythe Red Sea, 118115 furtheir stipul

in this respect by insisting that thelated that phasenger vessels and

aerial wires shall be maintained at tankers voyaging beyond Constan least three metres above the topatmople must comply with the Direc

instru

25,53 Chelmsford (England) 5.8.W.

245 Manila

KLXR

WE.LO

23.36 Babonectady 16.68 Bandoeng 18.4 Kootwijk (Holland) 171

Bandoong 16.9 Bangkok

| POL"

P.LF.

15.74 Bandoang 183 Kootwijk (Holland) 15.6 Nancy (France), 19,98 | Pittsburg

H81PJ

POK P.LE

WALK;

4,000 Thee, thure, Sat, 3 p.m.

6,800 Sunday midnight

7,149 Daily 6:30p.m. & 11 p.m.

7,310 Not reguler

1,780 Daily 11

8,108 Tues. & Fri, 9 p.m.-1a.m.

9,280 Not regular

9,803 Not regular

9,330 | Daily 7

9,800 Fri. 8 m., Bat, 3am. & 10a

9,590 Not regular”

9,877 Midnight daily

10,528 Not regular

11,020 Midnight 3 s.m, daily

11,751 7.30 pm, & 3 s.m, daily, axdept 12,240

12,850 Pkly burday and Sunday

Fri, Bat 16,102 Dally 6.30p.m. to midnight 16,804 Dally 7pm.

17.280 Daily.8 p.m. to midnight 37,761 Sundays 7p.m, & midnight, 18,404 Each afternoon.

19,220 Dally 8.30-7 p.m.

19,851 Dally 8am.

21,640 Not regular

in most Euro

[Allowanes must be made for "summer-time pesa countries, which is one hour ahead of true time)

Silver

Marshall

All Electric Superheterodyne

RADIO

Engineering Features

FOR

Advanced 1932 Models 8-TUBE SUFEEHETERODYNE

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SCREEN-GRID & 2-245 TUBES)

TONE CONTROL · LOCAL-DISTANCE SWITCH EXTENSION SPEAKER JACK TEN KO. SELECTIVITY SENSITIVITY

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The advantage to

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favourable

FOR FURTHER PAKTIQUEM

6 the funnels and in the case of tion Finder provisions not later an organise ocean-going ships at an average than July 1, 1031 The regulations height of not less than 15 metres shove the superstructure. The of the provision of a Direction Masters can

Ro beyond the merd requirements. porting total diameter of the main serial Finder and embody a technical and apply the ini shall be not less than 3.2 millimetres standard of Roturkeyin and it must be made of metal meat itself; The maximum error strands with a high mechanical re- permissible on bearings within a currents or winds which sistance, ~ A spare aerial, which has range of 100 miles is, threo degrees, previously been accurately tuned

indicated, or, alterna that ed for the transmission of the intersindicator on the Direction Finder in

and the provision of nutzennah S

wind." mdy. ~(Continisa on read U'olim compulsory

eir effect mitigated:

use may be made of,

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