41
Northstar
Explorer VHF Series: 721/725
Operation and Installation Manual
6-3 Receive a Distress Call (RCV: DISTRESS)
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 MMSI 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).
6-4 Receive a Distress Relay (RCV: DISTRESS RELAY)
Alternating
DISTRESS
RELAY FROM
123456789
ESC –> EXIT
FLOODING
987654321
82º50 .003’N
27º45 .543’W
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.
6-5 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.
1. Press CALL/MENU to enter the DSC CALL menu, then select DIST LOG (see Section 5.8).
987654321
DELETE
SAVE MMSI
> RELAY
RELAY
> INDIV RELAY
ALL RELAY
INDIV RELAY
> MANUAL NEW
BUDDY1
BUDDY2
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 MMSI 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 (for all relay) or manually set the working CH (INDIV RELAY) and
displays the details of the distress call on the screen.
5. Press ENT or push the rotary knob to relay the Distress Call.
123456789
DISTRESS
FLOODING
ESC –> EXIT
123456789
10:34 UTC
82º50 .003'N
27º45 .543'W