Filter
Top Products
4. DISTRESS OPERATIONS
4-2
4.1.1 Sending distress alert by DISTRESS button, nature of
distress not specified
1. Open the DISTRESS button cover and press and hold down the DISTRESS button more
than four seconds. The button flashes in red and the buzzer sounds rapidly. The display
shows the contents of the distress alert call: your ship’s nature of distress, position, time
and the DSC frequency over which the alert has been transmitted.
The number of seconds to continue pressing the DISTRESS button appear at the
bottom of the display. The buzzer sounds continuously and the lamp in the button lights
when the button has been pressed four seconds. You can release the button at that
time.
KEEP PRESSED FOR 2S
NATURE: UNDESIGNATED
POS:
12
°
34.0000 N
123
°
45.0000E AT 12:34
TELEPHONE
2182.0 kHz
Distress button
pressed!
Displays number of seconds to continue
pressing the DISTRESS button to
transmit the distress alert.
DSC FREQ : 2187.5kHz
Nature of Distress
Position, Time
DSC Frequency
used to transmit the
distress alert
The display changes as below. It takes about 40 to 60 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.
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.) When waiting the distress acknowledge,
the timer counts down the number of minutes before next retransmission, from 3.5 to 4.5
minutes, randomly set.
Distress alert
message in progress!
TIME TO GO : 38S
NATURE: UNDESIGNATED
POS:
12
°
34.0000N
123
°
45.0000E AT 12:34
TELEPHONE
2182.0 kHz
DSC FREQ
:
2187.5 kHz
Time to go until distress
alert is completely transmitted.