1931-10-15 — Page 2

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FEATURES

USE OF WIRELESS IN WARTIME.

FLEET IN CONSTANT COMMUNICATION WITH

ITS BASE

QUESTION OF JAMMING: A DIFFICULT

PROBLEM.

...

[BY SIR HERBERT RUSSELL.).

ocean when she began her depre- Coupling is 3 inches. Spark in The C-in-C naked whether St, dations alone enabled her to carry good. We have had a little engine Vincent had any idea where this on as long as she did. Wireless trouble, but it is running well now interceptod signal came from. The dogged her step by stop, and the station touta is 425 metres,

at 1,000 R.P. 17. The W.L. by reply was that there was no idea as to the origin of the signal, but that fragments of a similar message had Sydney know exactly where to find hope you are receiving our signals just been received with the (call her when she was able to reach the clearly. Engine and set working in N.D., 41, 11:59 am, howover

St. Vincent passed on the following well, Extra column Dudly Mail.by acarchlight: German spot.

The Northumberland magistrato atmessage received from I Z to I B

coded

Trade Protection,

We

Newcastle yesterday decided to Strength 3.W. 2,100 feet. Tele under navel procedure (Continued on Page 4)

Wo must consider this question of" rofet Berwick for con the immediate accessibility of our Note very high Streng

warships in relation to the matter

of numbers. A given fores which is'

always at chil' may be worth a very

tion.

much larger force "somewhere at HAVE YOU HEARD THESE?

sea. Particularly is this the case in connection with the very import- ant role of trade protection. To is taking his squadron to sea for dispose a certain number of cruisors exercises, which are arranged, to along a certain trade route and to last several days. Those exercises have practically no communication involve the dispersal of bis force, with them until they turn-up at This force leaves Hong Kong for their base port again is obviously

Mr. Stanley Baldwin has several the date an around about 30 years times expressed his conviction that ago. Tho Commander-in-Chief, the popular growth of wireless is ons of the strongest influences of our time for peace. His view is that it brings a sense of inter national contact, a much fuller inter racial knowledge, and a realization an unknown destination" and is a very different matter from being of how much all humanity at any lost in the blue. Scarcely has it on immediate speaking terms with rate, all civilized humanity-has in vanished beyond the horizon when every one of them, being able to common. In fact, wireless repre- mysterious, cable arrives from Lon find out at any given moment pre- sents a sort of vicarious" getting don. Owing to one of those drama- cisely where every ship is and to together," and people at home tic episodes which are not entirely tell her where to go and what to listening to "Die Fledermaus" confined to the stage or to fiction, do. I do not suggest that the exist from Vienna, or La Traviata" the Admiralty has concurred with ence of wireless justifică a reduc from Rome, or Wagner from Berlin, the Foreign Officer that it is very tion in our naval strength, bot it Faust" from Toulouse, feel desirable the China Fleet (as it manifestly does enable us to get that fighting with nations which can then was) should proceed forthwith better value out of that naval produce such works, really does to a certain spot, the name of which strength, seem rather a mad sort of business.is wholly immaterial. But the "

or

thinkable."

The Fly in the Ointment,

Here are lists of long-ways and short-wave stations which ahould be picked up by anyone in Hong Kong who has a mode [rately" "good"set" multable"for"re-- celving such signala. Success in picking up those stations also depends very largely upon fav curable atmospheric conditions. Roaders are invited to add to this list should they succeed in picking up any station not in- oluded in either of these lists:

LONG-WAVE STATIONS.

Wave length

(Metres) Station

200 Manila 277: Shanghai

Call Kilo

Sign oyole, K.Z.I.B.. 1,153 K.S.M.S. 1,083

345 Tokyo J.O.A.K. 870 $343 Hiroshima J.O.F.K 850 258 Hong Kong. Z.B.W

#

846 357.1 Boinbay VU.B. 840

361 Sapporo 366 Keijo! 370 Nagoya 370.4 Calentta 380 Kumamoto 300. Sendai 308 Dairen 400 Osaka 1410 Canton

480 Manila

SHORT-WAVE STATIONS,

STATION

CALL SIGN

A.F.K.

A.G.JS

R.F.N

1.BLA.

Kizo

KOLE 830 J.Ö.D.K. 20 J.O.C.K. 810' Y.U,CB09 J.O.G.K.. 790 JOEK 770 LQAK 700 J.O.B.K. 750

C.M.B K.Z.RM 625

Tix (Hošo Kona)

OF WORKING.»-

738

4,434 Mon, Wed. & Fri., & p.. & 2 s.m 4,990 0-10 p.m

5201 Not regulat,

8,000 Tue, Thurs., Sat, 8

6,896 Sunday mitight 0.A.G7,143 Dally 6.30 p.m. & 31 p.m.

V.S.I.A.B. 7,310 Not regalar

7,730 Daily 11 p.m... H.S.4.PJ8,108 Tues. & Fri, 9pm)

P.C.L

2.1.1. 0,920 Not regular 3.L.D. 9,503 Nov regular" W.2.X.A.F. 1,530 Daily 7

I think there is a great deal of China Fleetlins dishppeared into truth in Mr. Baldwin's idea, the blue and already its ships are although there is another side to it, scattering in fulfilment of some ment which the gods bestow upon But like all other pots of cint- for I never listen to the jazz per strategical plan which the C-in-Cus, this one basila fy in it. The formhuices which the B.B.C. so has kept to himself, at least, so bonefits of wireless, to which I beautifully purveys-such listching for us the natal people remaining have been referring, depend upon 67.45 Dobintz (Germany) being confired to the length of ashore at Hong Kong are concern the perfection of wireless, and it is 26.7. Sausn

60.18 Khabarovsk (Russia) RA.97. time it takes me to reach the in- ed. What are the Hong Kong very far from perfect as a means of 50 strument and switch off-without authorities to do They can cable wartime communication. It can be 42. wondering how on earth we enn rea code message to every place at jammed, intercepted, used for the gard war with the country respon which they think any ship or ships detection of the ship transmitting sible for auch an infliction as "un of the vanished feet is likely to it, and employed for the sending of touch. They can send forth any false messages and orders. The But these reflections are purely craft which may be available to wireless experts are fully alive to Incidental to my present theme, scour the ocean in search of the all these shortcomings, and to some which is a consideration not if the vanished feet. Probably within a

extent can counter them, but to possible influence of wireless in

day or two they might get into

some extent only. Jaraming is communication with one or more probably the most difficult problem, preventing war, but the part it may play in the course of war, and ships of the scattered forec Then nor does it stera possible that the especially naval war. The means of the rest have to be discovered and affects of this cal coinmunication is a matter of vital collected and it is not necessarytralized.. An enemy who is crowd- 17.4. necessity to the conduct of all to pursue the picture to make it ing the ether with discordant waves. military operations, using the term very clear that several days might is ruining his own means of wire- clapse before it would be possible less communication, but in many to give effect to the urgent cable case he could afford to do this from Londen,

with impunity. From sheer foren

ever be neu-

in its very widest and most com- prehensive sense. The value of re- connaissance depends wholly upon the capacity for imparting the in- Nowadays such a situation would of habit-and a very good habit, telligenge gathered to the directing be impossible. However much our too we invaijably think of the centre. Down to the opening of naval forces on the China Station enemy" as an inferior quantity, the present century visual signal- might be scattered at any moment whose principal aim will always be ling was the only method which "Stongeutters" can establish com to mimmiza, or to muck-up, our existed at sea for passing on infor- munication with every ship and superiority, whether in wireless or Flags, the heliograph, probably it is true to say that a anything else. But it is not alto. searchlights, blinkers," coloured priority message from Whitehall gether inconceivable that the ability. lights, the semaphore--one and all would be received by every ship to jam his messages or to send him these means of holding communi- within an hour of its transmission false instructions in his own codo cation, all perfect good in their way,

might prove quite as useful to us aro restricted to the circle of Dogged Step by Stap. on occasion as it can be to him. visibility. That circle might be ex-

At Jutland communication was very When the Jervis Bay took fright in tended indefinitely, according to the the Southern Ocean Because a few faulty, but apparently more so on resources, for throwing out concen stowaways threatened the hundreds

our side than with the Germans,. tric screens of scouting vessels,

since their battle fleet carried out of souls on board of her she just maintaining visual touch: But these called for naval help, and within

all its intricate evolutions with n resources are often very limited. Wireless has not altogether dis pensed with the necessity for numbers, because wireless can only

very few hours that help, had unanimity which could only be pes- started from Colombo One of the ble under a prompt reception and new 10,000-ton cruisers on her, way

interpretation of orders. I think they used visual, signalling very out to China on her maiden. trabemi observations when they mission picked up the massage and much more than we did, for one bave been established; and in order headed for the spot, inoressing her reason that they kept their own to establish them search may have speed as she went. In a word, wireless so busy in messing-up our to be extended over a wide zone, wireless has brought the 8.0.8. Before the fleets formed con- This, of conrse, is where aerial reet us realize what this means in tract, we, meanwhile, knowing that connaissance is of such value, for relation to naval war. When the the High Seas Fleet was out, but granting clear visibility, an nero- plane at 3,000 feet is worth a dozer Alamába was at large nobody knew tho. Germans not knowing that, the just where she was. She destroyed Grand Fleet was out, our own wire- 67, vessels before she WAR finally less was but little use, while every disposed if

abips at sea level-probably a good many more than a dozen

Elect Upon Naval Orientation

her-tat Port of effort at direational detection WES

nows was

Was

to hand the made, The St. Vincent often weeks, old, specially detailed to listen for But beyond what, I will call and she was probably hundreds of telefunkennt 0,12 and 10.40 on operational communications the ad-league sway from the spot where the morning of May 31 the report vent of wireless telegraphy has had it had happened. When the Eden od by searchlight that she had an effect upon the naval orienta was at large her approximate heard nothing, but at 11.22 she pan- tion, alike in peace and war, the whereabouts WAS always knowned on the following to the C-in-Ciff full extent of which is not generally) The immensity of the ocean in Following signal interception on realized Let me put a case which which the was operating and the W. 2300 without call sign; in plain may serve to illustrate this. Take sparsity at ma forces that language, English Begins,

10

9,020 Fri, 3 m. Sat. 3 am, & 10 am: 2,000 Not regular

9,677

Midnight dally

2026 Not regular

Masca

43:6

Bome

Porth

41.8

38.8

7

Bangkok (Binm) Singapore Kootwijk (Holland)

32.6 Sydney

· 31.68' | Melbourne

31.20

81.48.

Schenectady

Eindhoven (Holland)

P.J.

31.28

Sydney

1.2.8.0.

81. 29. 27,8 26.68

Nairobi (Kenya)

7.LO

Bydney Banduong

2.Br.E

PLE

Chelmsford (England) 6.8, W.

11,751 7.80

245

Manika 28.88 Bobopectady

W2X.O.

12,860

PLGA

Epotwijk (Holland)

1.0.L

Bandoung

PLEA

10.9

Bangkok :

183

Kootwijk (Holland)

H8.1.PI P.C.K.

15.74

Bandoung

15.6

Nancy (France)

13.08

Fittsburg

18.88 Bandoeng. 18.4

JL

11,020 Midnight-3 a.m. daily

pm. & 3 am, daily, excapt

Nightly

Baturday and Sunday

6. a.m. Wod,, V2L, Bat. 10,102 Daily 030 pm, to midnight.

10,304 Daily 7 p..

17.260 Dally 8 p.m. to midnight 17,751 Sundays 7 p.m. & midnight

18,404 Esal afternoon

PLE19361 Daily 8.

19,220 Daily 580-7 p.m.

W.8.X.H 21,045) Not regular

[Allowance must be made for " anmmer-time in mort Euro pean countries, which is one hour ahead of tras time.]

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