Furuno MARINE VHF RADIOTELEPHONE FM-3000 - Manual (Page 28)

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5.DSC Operation
y Push [DISTRESS] for 5 sec. to transmit the Distress call.
u After transmitting the call, the transceiver waits for an ac-
knowledgment call on Ch 70.
• The Distress call is automatically transmitted every 3.5 to 4.5
minutes.
i When receiving the acknowledgment, reply using the mi-
crophone.
< Tokyo CG
Distress ACK
Received
Distress
Completed
Wait for ACK
Set is OK
Push [DTRS]
for 5 sec
1. A distress alert contains (default);
• Kind of distress : Selected nature of the distress.
• Position data
: GPS or manual input position data held for
23.5 hrs or until the power is turned OFF.
2. The Distress call is repeated every 3.5–4.5 min., until re-
ceiving an ‘acknowledgement.’
3. Push [DISTRESS] to transmit a renewed Distress call, if
required.
4. Push any key (except [DISTRESS]) to cancel the ‘Call
repeat’ mode.
5. “??” may blink instead of position and time indications
when the GPS data is invalid, or has not been manually
updated after 4 hours.