NorthStar Navigation Explorer 721US Call the Most Recent Caller Last Call, Call a Group Group

5-4 Call the Most Recent Caller (LAST CALL)

DSC CALL

INDIVIDUAL

>LAST CALL GROUP

EXPLORER 721

INDIVIDUAL

ROUTINE

10:22AM LOC

EXPLORER 721

INDIVIDUAL

ROUTINE

> SET CHANNEL

EXPLORER 721

INDIVIDUAL

ROUTINE

> SEND?

This facility is useful and used frequently.

1.Press CALL/MENU to enter the DSC CALL menu. LAST CALL is automatically selected. Press ENT or push the rotary knob to display the contact details of the most recent incoming call.

2.Select the working channel. Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and select the correct channel.

3.The radio summarizes the call details and asks for confirmation to send the call (SEND?). Press ENT or push the rotary knob to send the call, and continue as explained in Section 5-3.

5-5 Call a Group (GROUP)

DSC CALL

INDIVIDUAL

LAST CALL

> GROUP

SELECT GROUP

>RD GROUP GROUP #2 GROUP#3

RD GROUP

055554444

ROUTINE

> SET CHANNEL

EXPLORER 721

INDIVIDUAL

ROUTINE

> SEND?

1.Press CALL/MENU to enter the DSC CALL menu, then select GROUP. The radio displays the names of your groups.

2.Select the group that you want to call (the Group MMSID must be set before making the call). Then set the channel and continue as explained in Section 5-3.

5-6 Call All Ships (ALL SHIPS)

DSC CALL

LAST CALL

GROUP

> ALL SHIPS

ALL SHIPS

>URGENCY SAFETY ROUTINE

ALL SHIPS

URGENCY

>YES NO

1.Press CALL MENU to enter the DSC CALL menu, then select ALL SHIPS.

2.The priority is set automatically to URGENCY. but you can change the priority level of the DSC call to routine, safety, urgency, or distress. Choose:

•URGENCY only when there’s a serious situation or problem that could lead to a distress situation

•SAFETY to send safety information to all other vessels in range

•ROUTINE to make a routine call to all vessels (721US only)

•DISTRESS only when there’s a distress situation

3.Select the working channel and press ENT or press the rotary knob. (NOTE: If you’re making a distress call, the radio goes to CH16 automatically.) Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and

32 Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual