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1-4
1.2.2 Individual call
The individual call is for sending a call to a specific station.
Coast
Station
Own Ship
DSC Message [Called Acknowledge
Request (ACK RQ) Signal]
Acknowledge Back (ACK BQ) Signal
Voice or telex communication
3
2
1
1
2
3
Basic procedure
1. Prepare message and transmit it by pressing the [CALL] key. The DSC-60 then awaits
acknowledgement of the call.
2. Receive acknowledge back (ACK BQ) signal from receiving station (coast station or ship
station) within about five minutes. The audio alarm sounds at this time; press the [CANCEL]
key to silence it.
3. After receiving ACK BQ signal, communicate with coast station; the FURUNO SSB
radiotelephone sets the working frequency and class of emission specified by your ship.
1.3 Audio Alarms
When you receive a distress alert or routine call addressed to your ship the audio and visual
alarms are released. For the distress or urgent call, the audio alarm sounds until the [CANCEL]
key is pressed. For other calls, the audio alarm sounds for one second and then automatically
goes off.
The tone of the alarm depends on the call received. By becoming accustomed to the tone you
can know which type of call you have received.
Alarm Frequency (interval)
Safety message received 1300 Hz and 0 Hz (250 ms)
Routine, Ship's Business
message received
880 Hz and 440 Hz (500 ms)
While DISTRESS button is
pressed for three seconds
2200 Hz and 0 Hz (125 ms)
Distress alert is being sent 2200 Hz, continuous
Own ship position not updated 2200 Hz (50 ms), three beeps every
two seconds