DSC calls
30 Chapter 2: Operation 98-171832-A
To receive acknowledgment of own distress
When the SAILOR 7222 VHF DSC receives an acknowledgment of distress from
another vessel or station, a 2-tone alarm sounds. The display shows a pop-up
window with the MMSI number of the station who sent the distress
acknowledgment call.
•Tap SILENT to switch off the 2-tone alarm.
•Tap HOME to return to the working display.
If the same Distress call comes in more than once, the 2-tone alarm sounds
briefly and terminates automatically.
To cancel own distress
If you need to cancel a sent distress message do as follows:
1. The display shows that a distress message has been sent. Tap CANCEL. A
pop-up window is displayed.
2. Tap Yes to go ahead with the canceling process. At this stage you have the
option to tap No to return to distress sending procedure.
3. The SAILOR 7222 VHF DSC will send the self-cancellation call on channel 70
and the display automatically shows the message that you should say when
canceling the distress with a radio message.
4. Tap OK to go to the acknowledged state. Own distress is canceled now.
5. Tap CANCEL to repeat the sending of the cancel DSC message.
6. Having finished the voice canceling, tap QUIT to quit the distress annulment
procedure.
Power failure while in distress
In case of a power failure or switch-off during the transmission of a Distress the
SAILOR 7222 VHF DSC gives an audible warning after power-up and
automatically resumes sending Distress 10 seconds after power up.
Within the 10 seconds you have the following options:
•Tap QUIT to terminate the active distress procedure (acknowledged or
unacknowledged).
•Tap CONFIRM (or wait and do nothing) to resume the sending Distress
procedure.
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