New Zealand Gazette – 1931 – No. 47

Page 1782

✨ Maritime Wireless Communication Schedule



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 $500 \mathrm{kc} / \mathrm{s}$ (600 metres) Stations are not included in the Schedule, since merchant ships keep normal watch on this wave 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.

  1. 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.

  1. 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 Commanderin-Chief, East Indies, for Merchant Ships in area $3: -\overline{\mathrm{CT}} \mathrm{GBMS} 3 \mathrm{~GBMS} 3 \mathrm{~GBMS}$ $3 \mathrm{DE} \mathrm{GZQ} \mathrm{GZQ} \mathrm{GZQ} \overline{\mathrm{BT}}$ From Commander-in-Chief, East Indies, $\overline{\mathrm{BT}}$ 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 $\overline{\mathrm{BT}} 1030() \overline{\mathrm{BT}}$ Repetition $\overline{\mathrm{BT}}$ From Commander-in-Chief, $& c, & c, \overline{\mathrm{BT}} 1030() \overline{\mathrm{AR}} \overline{\mathrm{VA}}$.

NOTE.-$-(*$ ) This is G.M.T. at which the message was ordered to be sent. It may be followed by the date thus :–“ $1030 \overline{\mathrm{NR}} 15 \overline{\mathrm{NR}} 2 . ”$

SCHEDULE.

Area Naval Authority who will arrange W/T Stations Call Sign. Wave, $\mathrm{kc} / \mathrm{s}$ (Metres). Type A1, except on 500 $\mathrm{kc} / \mathrm{s}$ (600 Metres), of Transmission. or where otherwise stated. Times
(see Chart). Transmission. by which Messages will be transmitted. G.M.T.
All Admiralty ... Rugby GBR $16 \mathrm{kc} / \mathrm{s}(18,740)$ $0000,1200$
Portishead GDU 149 $\mathrm{kc} / \mathrm{s} (2,013)$ $0400,1600$
Gibraltar GYW 125 $\mathrm{kc} / \mathrm{s} (2,400)$
Wick GKR
Cullercoats GCC
Humber GKZ
North Foreland GNF
1 Admiralty Niton GNI 500 $\mathrm{kc} / \mathrm{s} (600)$
Land’s End GLD
Portpatrick GPK
Seaforth GLV
Fishguard GRL
Valencia GCK
Malin Head GMH
Gibraltar GYW
*St. Angelo GYY 125 kc/s (2,400) Type A2. 0400, 1600
2 Senior Naval Officer Ashore, Malta, and Rear-Admiral, Gibraltar Gibraltar GYW 150 $\mathrm{kc} / \mathrm{s} (2,000)$
Aden GZQ 500 $\mathrm{kc} / \mathrm{s} (600)$
Malta VPT
Gibraltar GYW
Aden GZQ
Aden GZQ 150 $\mathrm{kc} / \mathrm{s} (2,000)$ Type A2 0400, 1600
3 Staff Officer (I.), Colombo Matara GZP
Aden GZQ
Bombay VWB 500 kc/s (600)
Madras VWM
Calcutta VWC
Rangoon VTR
Port Blair VTP
Karachi VWK
  • Awaits completion of messages transmitted by Gibraltar.

† Awaits completion of messages transmitted by Aden.



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✨ LLM interpretation of page content

🚂 Notice to Mariners regarding Admiralty Wireless Messages (continued from previous page)

🚂 Transport & Communications
10 June 1931
Maritime, Wireless Messages, Admiralty, Merchant Ships, Broadcasting, Schedule