✨ Maritime Wireless Communication Schedule
22
THE NEW ZEALAND GAZETTE.
[No 1
Stations under paragraph 2 (b) above, since, in all areas of the world, one or other of these times will fall within a period when ships with one operator are keeping watch. Times at which messages will be broadcast from 500 kc/s (600 metres) Stations are not included in the Schedule, since merchant ships keep normal watch on this wave length and messages may, therefore, be broadcast from these Stations at any time when the ships with one operator are keeping watch and are not listening for any routine transmissions on another wave length.
- The organization provides for messages containing information affecting British Merchant Ships to be broadcast:—
(a) By Admiralty to all British Merchant Ships in all areas;
(b) By Admiralty to British Merchant Ships in any particular area or areas;
(c) By Naval Authorities abroad to British Merchant Ships in the areas for which they are responsible.
Messages under (a) will be broadcast from Rugby with the call sign G.B.M.S.; and will also be broadcast with the same call sign by the W/T Stations shown in column 3 of the Schedule. (During “test” periods from Rugby only.)
Messages under (b) will be broadcast from Rugby with the call sign or call signs for Merchant Ships in the particular area or areas concerned (vide paragraph 1 above); and unless the messages affect only area 1, they will also be broadcast with the same call sign or call signs by the W/T Stations for the area or areas concerned shown in column 3 of the Schedule.
Messages under (c) will be broadcast by the W/T Stations shown in column 3 of the Schedule, using the call sign for Merchant Ships in that area (vide paragraph 1 above). Such messages may also be broadcast from Rugby with the same call sign.
- The W/T Stations broadcasting messages under this scheme will use their own call signs and will indicate the Naval Authority originating the message at the beginning of the text. For example, a message broadcast by Aden W/T Station from Commander-in-Chief, East Indies, for Merchant Ships in area 3:—CT GBMS 3 GBMS 3 GBMS 3 DE GZQ GZQ GZQ BT From Commander-in-Chief, East Indies, BT During the period 1st March to 30th April, 1926, H.M. ships engaged in the prevention of smuggling arms will be operating without lights in the Persian Gulf BT 1030 () BT Repetition BT From Commander-in-Chief, &c., &c., BT 1030 () AR VA.
NOTE.—(*) This is G.M.T. at which the message was ordered to be sent. It may be followed by the date thus:—“1030 NR 15 NR 2.”
SCHEDULE.
| Area (see Chart). | Naval Authority who will arrange Transmission. | W/T Stations by which Messages will be transmitted. | Call Sign. | Wave-length, kc/s (Metres). C.W. except on 500 kc/s (600 Metres.) | Times of Transmission. G.M.T. |
|---|---|---|---|---|---|
| All | Admiralty .. .. | Rugby .. | GBR | 16 kc/s (18,740) | 0000, 1200 |
| 1 | Admiralty .. .. | {Portishead .. Gibraltar .. Wick .. Cullercoats .. Humber .. North Foreland .. Niton .. Land’s End .. Portpatrick .. Seaforth .. Fishguard .. Valencia .. Malin Head .. Gibraltar ..} |
GKU GYW GKR GCC GKZ GNF GNI GLD GPK GLV GRL GCK GMH GYW |
149 kc/s (2,013) 125 kc/s (2,400) } 500 kc/s (600) |
} 0400, 1600 .. |
| 2 | Senior Naval Officer Ashore, Malta, and Rear-Admiral, Gibraltar | {St. Angelo .. Gibraltar .. Aden .. Malta .. Gibraltar .. Aden ..} |
GYY GYW GZQ VPT GYW GZQ |
} 125 kc/s (2,400) 150 kc/s (2,000) Type A2. } 500 kc/s (600) |
} 0400, 1600 .. |
| 3 | Staff Officer (I.), Colombo | {Aden .. Matara .. Aden .. Bombay .. Madras .. Calcutta .. Rangoon .. Port Blair .. Karachi ..} |
GZQ GZP GZQ VWB VWM VWC VTR VTP VWK |
} 150 kc/s (2,000) Type A2 } 500 kc/s (600) |
} 0400, 1600 .. |
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VUW Te Waharoa —
NZ Gazette 1930, No 1
NZLII —
NZ Gazette 1930, No 1
✨ LLM interpretation of page content
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Notice to Mariners regarding British Official Wireless Messages
(continued from previous page)
🚂 Transport & Communications17 December 1929
Maritime, Wireless Messages, Merchant Ships, Admiralty Notice, Schedule