MAY 23.] THE NEW ZEALAND GAZETTE. 1175

Notice to Mariners No. 13 of 1940.

Marine Department,
Wellington, N.Z., 20th May, 1940.

BRITISH OFFICIAL WIRELESS MESSAGES TO MERCHANT SHIPS.

Reprint of Admiralty Notice No. 3 of 1940, amended in Area 10 by Admiralty Notice No. 732 and in Area 11 by the New Zealand Naval Board.

Former Notices are hereby cancelled.

This organization provides for the transmission of important messages to British merchantmen in any part of the world on occasions when such messages may be of vital importance to their safety and welfare.

From the details given below it will be seen that arrangements have been made for such messages to be transmitted at certain scheduled times by Rugby and other selected British W/T stations in various parts of the world.

2. The world has been divided into certain areas (vide chart appended) and collective call signs have been introduced for (i) all British merchant ships, and (ii) British merchant ships in a particular area. These call signs are as shown in the following table:—

Messages for Area on Call
All British merchant ships .. .. .. .. Chart. Sign.
British merchant ships in— GBMS
Home Area .. .. .. .. .. .. .. 1 GBMS 1
Mediterranean Area .. .. .. .. 2 GBMS 2
East Indies Area .. .. .. .. 3 (A and B) GBMS 3
China Area .. .. .. .. .. 4 (A and B) GBMS 4
Australia Area .. .. .. .. 5 (A and B) GBMS 5
Africa Area .. .. .. .. .. 6 (A and B) GBMS 6
America and West Indies, East Coast,
Northern Area .. .. .. .. 7 GBMS 7
America and West Indies, West Coast,
Northern Area .. .. .. .. 8 GBMS 8
America and West Indies, East Coast,
Southern Area .. .. .. .. 9 GBMS 9
America and West Indies, West Coast,
Southern Area .. .. .. .. 10 GBMS 10
New Zealand Area .. .. .. .. 11 GBMS 11

3. Messages will be broadcast as follows:—

(a) From Rugby and Oxford at the commencement, or during the transmission, of the British Official Wireless News, and on the same frequencies:—

TIME. WAVE. REMARKS.
0000 G.M.T. { 16 kc/s (18,750 metres) } During the months of November,
{ 8,730 kc/s (34·36 metres) } December, and January only.
{ 12,975 kc/s (23·12 metres) }
{ 6,985 kc/s (42·95 metres) }
1200 G.M.T. { 16 kc/s (18,750 metres) } Directional Array for ships in
{ 12,975 kc/s (23·12 metres) } South American Waters.
{ 19,640 kc/s (15·27 metres) }
2000 G.M.T. { 16 kc/s (18,750 metres) } Directional Array for ships in
{ 8,730 kc/s (34·36 metres) } South American Waters.
{ 12,975 kc/s (23·12 metres) }
{ 19,640 kc/s (15·27 metres) }

(b) From Falklands—
On 8,450 kc/s (35·5 metres)—at 0410 and 1610 G.M.T.

(c) From certain medium and high power W/T Stations abroad—
Between 150 kc/s (2,000 metres) and 90·9 kc/s (3,300 metres), and in certain cases on higher frequencies—at the times shown in Column 6 of the Schedule.

(d) From certain W/T Stations—
On 500 kc/s (600 metres) or, in the case of stations in Areas 1 and 2, on their working wave—at any time.

4. A list of the stations included in the organization showing the areas for which they will transmit and the waves on which messages will be broadcast is shown in the Schedule. As far as possible the times 0400 and 1600 G.M.T. have been fixed for transmissions from stations under paragraph 3 (c)
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