NorthStar Navigation Explorer 721US, Explorer 721EU Receive a Distress Call RCV Distress

6-2 Receive a Distress Call (RCV: DISTRESS)

RCV: DISTRESS

123456789

FLOODING

ESC –> EXIT

RCV: DISTRESS

10:34 UTC

82º50.003'N

27º45.543'W

An alert sounds when a distress call (DISTRESS!) is received. Press any key to cancel the alert. You don’t need to send an acknowledgement.

The radio automatically selects CH16 and displays the details of the distress call on the screen. Press PTT to establish voice contact.

The details are displayed over two screens that alternate every 1.5 seconds; the first screen shows the user MMSID and nature of the emergency (if specified), the second screen shows the time and the location (if specified). If the location and time aren’t specified, they’re replaced with sequences of 9s and 8s respectively.

The radio is capable of receiving enhanced LL position data if the vessel transmitting the distress call is sending this. This provides the position of the distressed vessel to within 60 ft (20 m).

6-3 Receive a Distress Relay (RCV: DISTRESS RELAY)

RCV: DISTRESS

RELAY

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ESC –> EXIT

An alert sounds when a distress relay (DISTRESS RELAY) is received from an individual or from an All Ships transmission. Press any key to cancel the alert.

Try to make voice contact with the calling vessel. Maintain a listening watch on CH16 and standby to lend assistance.

6-3 Relay a Distress Call from the Distress Log (RELAY)

You can relay a Distress Call in your Distress Log to an Individual or to All Ships.

VHF721

DELETE

SAVE MMSID

> RELAY

RELAY

>INDIV RELAY ALL RELAY

INDIV RELAY

>MANUAL NEW BUDDY1 BUDDY2

1.Press CALL/MENU to enter the DSC CALL menu, then select DIST LOG (see Section 5.8).

2.The most recently received distress call Is the first entry (01) in the Distress Log. Select the distress call that you want to relay, then select RELAY.

3.Now select either:

•INDIV RELAY to relay the distress call to an individual and select MANUAL NEW if the person is not in your buddy list, otherwise scroll to the name of your buddy. Press ENT or push the rotary knob. (If you selected MANUAL NEW, you need to enter the user MMSID then press ENT or push the rotary knob.)

•ALL RELAY to relay the distress call to All Ships then press ENT or push the rotary knob.

4.The radio automatically selects CH16 and displays the details of the distress call on the screen.

5.Press ENT or push the rotary knob to relay the Distress Call.

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