JRC JHS-770S - Receiving a Distress Relay Call

Operation
4-52
4.4.5.2 Receiving a distress relay call
Normally, ship stations receive a distress relay call in the following situations.
・ When a coast station has transmitted an all ships or individual distress relay call.
・ When another ship station has transmitted a distress relay call to all ships, an individual
distress relay call, or a geographic distress relay call to a specific sea area.
As a general rule, the ship stations should respond via radiotelephony after receiving a distress relay
call. But if called individually by another ship station, and if allowed by a coast station, a distress
relay acknowledgement can be transmitted as follows. Further, a distress relay acknowledgement can
be composed from the log of the received distress relay message.
■ Procedure ■
1
1
1
.
.
.
When a distress relay call is received,
the screen at right will be displayed.
 The specific alarm will sound growing louder
gradually.
 The ALM lamp blinks in sync with the alarm sound.
 The example message contains the following
information.
- Type: Distress relay call
- To: Individual (own ship)
- Caller’s MMSI: 123456789
- MMSI of ship in Distress: 987654321
- Nature of distress: Fire, explosion
- Position and Time: North latitude 34º 00.1234'
(Longitude and the time appears by scrolling.)
- EOS: ACK is requested.
(appears by scrolling)
2
2
2
.
.
.
Press CANCEL to stop the alarm, and
the screen at right will be displayed.
3
3
3
.
.
.
Press ENT and watch on CH16.
 Keep watch for at least 5 minutes.
 When acknowledging the distress relay,
follow the procedure described below.
Station1 TIME 23:59(UTC)
POS 89ﾟ59'S
EXT 179ﾟ59'W
16
CH
SQL
CH70
CH
SW
[ITU]
Received distress message
Type :Distress relay.
To :Individual.....
From :123456789......
Dist-ID :987654321......
Nature :Fire...........
Position :34ﾟ00.1234'N...
Station1 TIME 23:59(UTC)
16
CH70
Press CANCEL to silence alarm.
CH
[ITU]
Received distress message
Type :Distress relay.
To :Individual.....
From :123456789......
Dist-ID :987654321......
Nature :Fire...........
Position :34ﾟ00.1234'N...
Station1 TIME 23:59(UTC)
16
CH70
[OK/CH16 watch] [Cancel]
CH
[ITU]