Mar. 30.] THE NEW ZEALAND GAZETTE. 773

3. Messages will be broadcast as follows :-

(a) From Rugby and Oxford—

Time. Call Sign. Wave. Remarks.
*0000 G.M.T. { GBR .. 16 kc/s (18,750 metres) } During transmission
{ GIC .. 8,640 kc/s (34·72 metres) } of British Official
{ GIM .. 12,975 kc/s (23·12 metres) } Wireless News.

1200 G.M.T. { GBR .. 16 kc/s (18,750 metres) }
{ GIM .. 12,975 kc/s (23·12 metres) } Immediately preced-
{ GIA .. 19,640 kc/s (15·27 metres) } ing British Official
Wireless News.

2000 G.M.T. { GBR .. 16 kc/s (18,750 metres) }
{ GIC .. 8,640 kc/s (34·72 metres) }
{ GIM .. 12,975 kc/s (23·12 metres) }

(b) From Falklands—

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—

500 kc/s (600 metres)—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 broad-
   cast 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)
   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, and messages may, therefore, be broadcast from these stations
   at any time. If messages are broadcast by stations shown in para-
   graphs 3 (c) and (d) above outside the single operator periods of their areas,
   steps will be taken to ensure that these messages are received by ships only
   keeping watch during single operator periods. Such messages, therefore,
   in the case of the medium and high power stations which have two or more
   broadcast periods a day will be retransmitted at the next routine broadcast.
   In the case of the 500 kc/s stations such messages will be retransmitted at
   the commencement of the next following single operator period for their
   area or areas concerned. This organization results in four special 500 kc/s
   periods a day being available in any area, when broadcast messages may be
   received, in addition to such messages being made on receipt by the stations
   concerned.

5. Messages containing information affecting British merchant ships
   will 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, Oxford, and Falklands
with the call sign GBMS, and will also be broadcast with the same call
sign by the W/T stations concerned shown in column 3 of the Schedule.
(Messages under (a), during “test” periods, will be broadcast from Rugby,
Oxford, and Falklands only.)

Messages under (b) will be broadcast from Rugby, Oxford, and, if
necessary, from Falklands, with the call sign or call signs for merchant ships
in the particular area or areas concerned. They will also be broadcast by
the W/T stations of the area or areas concerned, using the appropriate
call sign.

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 2 above). Such messages may also be broadcast from
Rugby, Oxford, and/or Falklands with the same call sign.

*For the 0000 G.M.T. transmission Oxford (GIJ), on 6,985 kc/s (42·95 m), will
replace (GIM) during the months of November, December, and January.

D