CO129-390 - Acting Governor Claud Severn - 1912 [5-6] — Page 239

CO129 Colonial Office Hong Kong Records 理藩院香港檔案 All

bPY.

hfidential.

Sir,

No. 1.

Hongkong, 21st. May, 1912.

231

Wireless Telegraphic Station.

Referring to our Senior's letter of 28th. February we

have pleasure in informing you that we have now received full particulars of the proposed Station, from our Principals, Messrs. Marconi's Wireless Telegraph Company, Limited, copies of which, together with drawings we enclose herewith.

Messrs. Marconi in their letter to us, reply as follows

to the several points which we raised and which we think are worthy of consideration. The 30 Kilowatt Station proposed, al- -though it can safely be guaranteed for the day range of 850

Nautical Miles specified, when working across open water, cannot

be relied upon for regular day and night working over this dis- -tance when land of a highly mountainous nature lies in the line

of communication. Should the Station be required to work in con-

-nection with a similar station in Shanghai, communication would

be required across some 660 Nautical Miles practically entirely over land, including some considerable elevations. Although there is every probability that such communication could often be established particularly during the night hours, they do not

think it advisable to guarantee regular working with that point.

According to more recent practices they have

included with the main 30 Kilowatt Installation a Subsidiary 3

Kilowatt Installation, which would be employed when working over

comparatively short distances on the regular wave length used in

Ship Communication.

With regard to the question of the severe climatic

conditions obtaining at Hongkong at certain times of the year,

Messre. Marconi advise us that the Patent Sectional Steel Masts

which are provided for in the Tender, are designed with an ample margin of safety to meet such contingencies, and have been erected under the most varying conditions in all parts of the

World,

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