237041-1937-Notice-to-Aircraft-Radio-Operators-No-2-of-1937 — Page 2

THE HONG KONG GOVERNMENT GAZETTE, NOVEMBER 12, 1937.

6. The following note has been added to the group QTG (pages 18 and 32):-

In air navigation, QTG used alone relates to ordinary signals without impulse. QTG followed by the group "IMP" indicates that impulse transmission should be, or is being, employed. The frequency of the impulses may be indicated; it is then inserted after "IMP", whilst the wavelength (or frequency) is inserted, if necessary, before "IMP".

7. The following additional note has been added to the group QTH (pages 19 and 30):-

The letters "DO" after QTH signify that the position indicated is estimated and not observed.

8. The following additional note has been added to the group QTI (pages 19 and 30):-

In air navigation, QTI used alone signifies the angle between the longitudinal axis of the aircraft and the direc- tion of the geographical north. QTI followed by "SOL" signifies the angle between the course actually followed by the aircraft and the direction of the geographical north.

9. The group QDM QTF (pages 8 and 34) has been deleted.

10. The following new groups have been added:—

Abbrevi- ation.

Question.

Answer or advice.

QAR

May I cease keeping watch

for

order to

minutes, in ..(reason)?

QBC

QCY

QDO

QFU

QFV

Will you

send me the

latest meteorological observation made by you from the aircraft?

Will you ask station....

to transmit its call sign followed by a continuous dash for

.minutes,

on its working wave (or on the wave, of ..m) so that I may use my D/F apparatus?

What

is the prescribed direction for landing, ex- pressed as the magnetic course to steer for main- taining this direction?

Can you give me the direc- tion of the row of land- ing lights (green, white red)?

You may cease keeping

watch for ........minutes

in order to

son).

(rea-

Here is the latest meteo-

rological

observation

made by me from the aircraft.

I am working (or Work)

on a trailing aerial.

I will ask station..

.to

transmit its call sign followed by a continu- ous dash for

minutes on its working wave (or on the wave of ..m) so that you may use your D/F apparatus.

The prescribed direction for landing, expressed as the magnetic course to steer, is ..degrees.

The direction of the row of landing lights (green, white, red) is

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