Safety call: This type of call is used to transmit safety information (for example,
an overdue boat, debris in the water, loss of a navigation aid, and an important
meteorological message) to other vessels. This call is the same as saying
"Security, Security, Security".
Urgency call: This type of call is used when a vessel may not truly be in distress,
but has a potential problem that may lead to a distress situation. This call is the
same as saying "Pan-Pan-Pan" on CH16.
4.6.1 How to Initiate an All Ships Call
Step 1 On the home screen, press the Menu/DSC control to enter the "MAIN
MENU" on the screen.
Step 2 Go to "DSC CALL > ALL SHIPS".
The "ALL SHIPS" interface appears on the screen.
Step 3 Select the category of the call ("SAFETY" or "URGENCY").
Step 4 Select a channel.
Step 5 Press the Menu/DSC control to initiate a group call.
When CH70 is busy, you can wait without pressing any key until CH70
is idle.
When CH70 is idle, the All Ships call is transmitted, and the radio
switches to the selected channel.
Step 6 Select "OK" to return to the home screen.
Step 7 Press and hold the PTT key to talk into the microphone.
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