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4 DISTRESS OPERATIONS
4-2
2. The display changes as below. It takes about 40 seconds to transmit the distress alert,
and the number of seconds until transmission is completed is shown at the bottom of
the display. At this time the output power of the radiotelephone is automatically set to
maximum.
Distress
call in progress!
TIME TO GO : 38S
NATURE: UNDESIGNATED
POS:
12
°
34N 123
°
45E AT 12:34
TELEPHONE
2182.0 KHZ
DSC FREQ
: 2187.5 KHZ
Time to go until distress
alert is completely transmitted.
3.
After the distress alert has been sent, the display changes as below and the audio
alarm is stopped. Wait to receive the distress acknowledge call from a coast station,
which usually takes 1 to 2 min 45 seconds. (The [DISTRESS] button remains lit until
the equipment receives the distress acknowledge call from a coast station.) The timer
counts down the number of minutes before next retransmission (if necessary), from
3.5 to 4.5 minutes, randomly set.
At this time, the equipment cannot receive any calls except the distress alert
acknowledge call. The distress alert you sent is recorded in the TX log.
Wait for distress
acknowledgement.
TIME TO GO: 2M10S
NATURE: UNDESIGNATED
POS :
12°34N 123°45E AT 12:34
TELEPHONE
2182.0 KHZ
DSC FREQ : 2187.5 KHZ
4.
When the distress acknowledge call is received, the audio alarm sounds and the
display changes as below.
SHIP IN DIST: 123456789
POS:
12°34N 123°45E AT 12:34
TELEPHONE
2182.0 KHZ
FROM COAST: 001234567
NATURE: UNDESIGNATED
Distress acknowledge
call received.
STOP ALARM
Note: If you do not receive the distress alert acknowledge call, the equipment
automatically re-transmits the distress alert and then awaits the distress alert
acknowledge call. This is repeated until the distress alert is acknowledged.
5. Silence the alarm with the [CANCEL] key. The contents of the distress acknowledge
call appear.