HF DSC on 8474. 5kHz and one other HF frequency; or
lnmarsat EGC (SafetyNET) watch (as already shown in the log, above)
(enter your 113 Area' Distress Watch method into the radio log, when moving
from A2 area to A3, whichever method is being used).
Example 2 - leaving Durban (South Mrica) bound Fremantle
(Australia)
(i) Receiving MS!
ALRS Vol. 5 (NAVTEX section) shows station '0' located at
Durban (figure 2.4) - so we need to programme the NAVTEX receiver
for station '0' before sailing. There are no stations en-route (unless
we are visiting Mauritius), and none in Australia (but a note on the
NAVTEX map covering Australia tells us to 'see International
SafetyNET Service'
The SafetyNET map in ALRS Vol. 5 (SafetyNET section). Figure
2.1 shows that, for our route (which passes below 30 ° South) we start
the voyage in NAV AREA VII (7) and move directly to NAVAREA X
(1O). The table on the previous page shows that MSI nav. and weatherinformation is available on AOR-East. The table shows that the IOR
satellite carries weather information only, for NAV IMETAREA VII,
beyond 50 ° East. To receive MSI for Area VII in it's entirety, we
need to log in to AOR-East. We cannot ask for Area X as an additional
area, as that information is not available on AOR-East. When wetravel beyond 50 ° East we can change satellite to the IOR and ask for
Area X as an additional area.
On the page following Area X 'High Seas Forecast Areas' (figure
2.2), we find details of 'Coastal Navigational Warnings Areas' (figure
2.3) for the Australian coast. As we are heading for Fremantle, (at 30°
01 'S 115 ° 47'E) we can programme our SafetyNET receiver for Coastal
Area 'F' and the types of information we require.
(ii) Sea Area on Sailing/SAR Responsibility
ALRS Vol. 5 (SAR section) shows that the voyage takes us
through the SRRs of South Mrica; France (Reunion); Mauritius and
Australia. The entire route, from departure to arrival, is an A3 area.
(iii) Shore GMDSS facilities/Alternative facilities
ALRS Vol. 5 (Inmarsat Satellite section) shows that there are no
Inmarsat LESs in South Africa, Reunion, or Mauritius. There is a
station in Australia (Perth) which will cover the Australian SRR.MARINE COMMUNICATIONS 33