100118-1926-Regulations-under-section-3-of-the-Wireless-Telegraphy-Ordinance-1926 — Page 8

THE HONG KONG GOVERNMENT GAZETTE, SEPTEMBER 10, 1926.

The Schedule of ship stations before referred to.

413

Character of apparatus.

3.

9.

10.

Normal range of

signalling in

6.

Wave lengths in

nautical miles.

metres. The normal wave length is underlined.

Power.

System of

Name of ship on which station established.

Nature of services

radio-

Hours

4.

5.

tele-

7.

of

ser-

per-

graphy with the

Maximum

vice.

formed.

charac-

Spark or

toristics

inter.

Source and

By night.

By

day.

of the system of cmission.

rupted

con- tinuous

wave.

Con- tinuons

wave.

to be taken in maximum sending

If alternator is used, number of cycles per second.

output.

instru-

ments.

i

:

RECEIVING STATION LICENCE.

Wireless Telegraphy Ordinance, 1926.

(Name of licensee in full) is hereby licensed, subject to the conditions set forth below, to establish, maintain and use, for one year commencing on (date of issue of licence), a wireless telegraphy station at (description of place in full) for the sole purpose of receiving wireless messages.

CONDITIONS.

1. The station shall not be used for any purpose other than that of receiving.

2. The station shall not be used in such a manner as to cause interference with the working of other stations. In particular, back-coupling must not be used to such an extent as to energize any neighbouring aerial.

31

"

66

whistle

?

"note" or NOTE: Interference is taking place if a continuous "note is heard. If this note or "whistle changes when the wave length of the receiver is altered, the cause of interference is the receiver and reaction must be reduced until no note or "whistle is audible. If the "note Or

whistle" does not change, the interference is due to some external source.

66

""

12

}}

3. The combined height and length of the external aerial, where one is employed, shall not exceed 100 feet. An aerial which crosses above or is liable to fall upon or to be blown on to any overhead power wire, including electric lighting and tramway wires, must be guarded to the reasonable satisfaction of the owner of the power wire con- cerned. All aerials shall be fitted with an earthing switch, and the aerial shall be left earthed when not in use.