CO537-(1262-1649) — Page 474

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ta size

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ceiver

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OUT

DATE

CONFIDENTIAL.

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bila is an unparaphrased version of a secret cypher or confidential code message, first be paraphrased" if it is essential to communicate it to persons outside British nent Services.

shown as having been sent in a One-Time Pad ("O.T.P.") are excepted from this rule.]

1

N

4.

Officials at present in London from Hong Kong consider

that under some Boheme as outlined above it should be possible to find necessary sites.

5.

Greatest possible separation between transmitting and receiving aitea essential. Absolute minimum is 5 repetition 5 miles.

6.

We are Bending with Minutes rough sketch layouts for receiver and transmitter aerial systems which will give required services in the minimum acceptable areas utilizing multi-channelling equipment and wide band amplifiers of cathode follower type.

7. Your para. 7. Colonial Office representative and ..G. Hong kong at keeting. Colonial Officer will ask Hong Kong Government to afford your Board all possible assistance.

8. Your para, 5.

We are co-ordinating with SIGINT Board.

201056A

British Joint Communications Board.

(Admiralty 1083)

cms

Ref.:

CO 537/1425

THE NATIONAL ARCHIVES

2

restrictions Further information is given in the enclosed 'Terms and Conditions of supply of National Archives' teaflet

Please note that this copy is supplied subject to the National Archives' terms and conditions and that your use of it may be subject to copyright

T

j

D.S.D. (3)

D.R.E.(3),

D. Sigs. War office.

D.D. Radio D. Air Ministry.

Colonial Office (kr. J. Megson).

# (Mr. .I. Wynne-Jones)

Hong Kong Civil Affairs Dept. (Mr. L.H. King).

(3)

B.J.C.F. (4) (includes (2) for Cables & wireless, Ltd.)

cms

Ref.:

CO 537/1425

THE NATIONAL ARCHIVES

Ins

2

restrictions Further information is given in the enclosed Terms and Conditions of supply of National Archives' leaflet Please note that this copy is supplied subject to the National Archives' terms and conditions and that your use of it may be subject to copyright